Updated on 2024/11/13

Information

 

写真a

 
KUSAKABE TAKAHIRO
 
Organization
Faculty of Agriculture Department of Bioresource Sciences Professor
School of Agriculture Department of Bioresource and Bioenvironment(Concurrent)
Graduate School of Bioresource and Bioenvironmental Sciences Department of Bioresource Sciences(Concurrent)
Title
Professor
Profile
平成2年3月 九州大学農学部修士課程修了 平成2年4月1日より平成5年3月31日まで 明治乳業株式会社ヘルスサイエンス研究所研究員として、麹カビ宿主系によるヒト蛋白質発現系の研究 平成5年4月1日より平成7年3月30日まで 佐賀医科大学生化学講座として、 解糖系酵素アルドラ−ゼの構造と機能に関する研究 平成5年4月1日より平成7年3月30日まで 国立佐賀肥前病院付属看護学校常勤講師として生物学を担当 平成6年10月20日 博士(農学)学位取得(九州大学) 平成7年4月1日より平成9年10月31日まで 米国ハーバード大学医学部、博士研究員として、DNA複製におけるプライマーゼとヘリカーゼの機能に関する研究に従事。 平成9年11月1日より 九州大学農学部農学科蚕学講座助手として、 蚕、雄性生殖巣におけるの減数分裂期の遺伝的組み換えの機構と染色体の構造に関する研究に従事、現在に至る。 現在の研究内容  カイコは、過去の遺伝学的、生理学的研究の蓄積からショウジョウバエとならんで実験用昆虫として重要な地位を占めてきた。研究室では減数分裂時に起こる交叉の分子機構をカイコの精巣を材料に用いて解析する。高等真核生物においては配偶子の形成時にのみ、父母由来の相同な二価染色体の対合が起こり、遺伝子の組換えが起こることは周知の事実であるが、染色体がどのようにして自己と似た塩基配列を有するもう一本の染色体を識別するのか、また実際に対合した染色体間でどのようにDNA鎖の交換が行われるのかについての分子機構に関する研究は少ない。カイコ終齢幼虫の精巣で生じる減数分裂期には、対合した四価染色体はシナプトネマル複合体として観察され、そこではDNA二重鎖の片鎖切断、遊離した一本鎖DNAの相補的な二本鎖DNAへの対合、DNA鎖の交換、その後に生じる結合末端の修復といった一連の反応が起こっている。この反応には少なくとも100種以上のタンパク質が関与しいると考えられ核酸-タンパク質複合体を形成し、巧妙な相互調節を行っている。シナプトネマル複合体に観察される組換え小節と第一分裂終期にみられるキアズマの位置と数とが一致することから、組換え小節がこの核酸-タンパク質複合体であると信じられている。我々はこの複合体が担う組換えに関わる酵素活性、複合体構成の構造的役割の両面から、最も重要なタンパク質の一つであると考えられる、RecA相同タンパク質を中心に研究を行っている。  生殖は地球上に生存する真核生物が進化の過程で獲得した機構であり、染色体交叉による遺伝情報の組換えはまた動植物の進化の多様性を促進してきた。相同組換えの分子機構の解明は生物学上の重要課題の一つであるばかりではなく、そこで機能するタンパク質の一つ一つが独特の活性を有しており、タンパク質の構造と機能の面からも非常に興味深い研究課題である。
External link

Degree

  • Ph.D

Research History

  • 明治乳業ヘルスサイエンス研究所 1990.4-1993.3   

    明治乳業ヘルスサイエンス研究所 1990.4-1993.3

  • 佐賀医科大学医学部生化学講座 1993.4-1995.3   

Research Interests・Research Keywords

  • Research theme: Analysis of DNA damage and homologous recombination repair in insect cells

    Keyword: Silkworm, Homologous recombination, DSB, DNA repair

    Research period: 1999.4

Papers

  • The biological role of core 1β1-3galactosyltransferase (T-synthase) in mucin-type O-glycosylation in Silkworm, Bombyx mori

    Akihiro Morio, Jae Man Lee, Tsuguru Fujii, Hiroaki Mon, Akitsu Masuda, Kohei Kakino, Jian Xu, Yutaka Banno, Takahiro Kusakabe

    Insect Biochemistry and Molecular Biology   156   103936 - 103936   2023.5   ISSN:0965-1748 eISSN:1879-0240

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    O-glycosylation of secreted and membrane-bound proteins is an important post-translational modification that affects recognition of cell surface receptors, protein folding, and stability. However, despite the importance of O-linked glycans, their biological functions have not yet been fully elucidated and the synthetic pathway of O-glycosylation has not been investigated in detail, especially in the silkworm. In this study, we aimed to investigate O-glycosylation in silkworms by analyzing the overall structural profiles of mucin-type O-glycans using LC–MS. We found GalNAc or GlcNAc monosaccharide and core 1 disaccharide (Galβ1-3-GalNAcα1-Ser/Thr) were major components of the O-glycan attached to secreted proteins produced in silkworms. Furthermore, we characterized the 1 b1,3-galactosyltransferase (T-synthase) required for synthesis of the core 1 structure, common to many animals. Five transcriptional variants and four protein isoforms were identified in silkworms, and the biological functions of these isoforms were investigated. We found that BmT-synthase isoforms 1 and 2 were localized in the Golgi apparatus in cultured BmN4 cells and functioned both in cultured cells and silkworms. Additionally, a specific functional domain of T-synthase, called the stem domain, was found to be essential for activity and is presumed to be needed for dimer formation and galactosyltransferase activity. Altogether, our results elucidated the O-glycan profile and function of T-synthase in the silkworm. Our findings allow the practical comprehension of O-glycosylation required for employing silkworms as a productive expression system.

    DOI: 10.1016/j.ibmb.2023.103936

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  • High yield production of norovirus GII.4 virus-like particles using silkworm pupae and evaluation of their protective immunogenicity. International journal

    Akitsu Masuda, Jae Man Lee, Takeshi Miyata, Shintaro Sato, Atsushi Masuda, Masahiro Taniguchi, Ryosuke Fujita, Hiroshi Ushijima, Keisuke Morimoto, Takeru Ebihara, Masato Hino, Kohei Kakino, Hiroaki Mon, Takahiro Kusakabe

    Vaccine   41 ( 3 )   766 - 777   2023.1   ISSN:0264-410X eISSN:1873-2518

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Vaccine  

    Noroviruses (NoVs) are one of the major causes of acute viral gastroenteritis in humans. Virus-like particles (VLPs) without genomes that mimic the capsid structure of viruses are promising vaccine candidates for the prevention of NoVs infection. To produce large amounts of recombinant protein, including VLPs, the silkworm-expression vector system (silkworm-BEVS) is an efficient and powerful tool. In this study, we constructed a recombinant baculovirus that expresses VP1 protein, the major structural protein of NoV GII.4. Expression analysis showed that the baculovirus-infected silkworm pupae expressed NoV VP1 protein more efficiently than silkworm larval fat bodies. We obtained about 4.9 mg of purified NoV VP1 protein from only five silkworm pupae. The purified VP1 protein was confirmed by dynamic light scattering and electron microscopy to form VLPs of approximately 40 nm in diameter. Antisera from mice immunized with the antigen blocked NoV VLPs binding to histo-blood group antigens of pig gastric mucin and also blocked NoV infection in intestinal epithelial cells derived from human induced pluripotent stem (iPS) cells. Our findings demonstrated that NoV VLP eliciting protective antibodies could be obtained in milligram quantities from a few silkworm pupae using the silkworm-BEVS.

    DOI: 10.1016/j.vaccine.2022.12.015

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  • Construction of gene co-expression networks in cultured silkworm cells and identification of previously uncharacterized lepidopteran-specific genes required for chromosome dynamics. International journal

    Hiroaki Mon, Masanao Sato, Jae Man Lee, Takahiro Kusakabe

    Insect biochemistry and molecular biology   151   103875 - 103875   2022.12   ISSN:0965-1748 eISSN:1879-0240

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Insect Biochemistry and Molecular Biology  

    Advances in sequencing technology and bioinformatics have accelerated gene discovery and homology-based functional annotation in many species, and numerous targeted gene studies have greatly expanded the understanding of gene functions. Nevertheless, there are still many genes that lack homology with genes in other evolutionary lineages and are left as genes with unknown functions. We constructed a gene co-expression network from the Bombyx mori ovary-derived cell line, BmN4, and attempted to infer the biological roles of uncharacterized genes based on the correlation between the function-known and unknown genes. Within this network, we focused on the co-expression modules involved in chromosome architecture, dynamics, and integrity, and selected the uncharacterized genes for subsequent RNAi-based phenotypic screening. This approach enabled the identification of 5 genes whose knockdown led to abnormalities in chromosome dynamics and spindle morphology in mitosis. One of them was a recently characterized gene, BmCenp-T, which plays a central role in building the kinetochore protein complex on the silkworm holocentric chromosomes. In this study, we suggest a method for constructing the gene co-expression network and selecting candidate genes for small-scale RNAi screening. This approach is complementary to homology-based annotation and may be useful for the analysis of lineage-specific uncharacterized genes such as orphan genes.

    DOI: 10.1016/j.ibmb.2022.103875

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  • Optimization of SARS-CoV-2 Spike Protein Expression in the Silkworm and Induction of Efficient Protective Immunity by Inoculation With Alum Adjuvants. Reviewed International journal

    Akitsu Masuda, Jae Man Lee, Takeshi Miyata, Hiroaki Mon, Keita Sato, Kosuke Oyama, Yasuteru Sakurai, Jiro Yasuda, Daisuke Takahashi, Tadashi Ueda, Yuri Kato, Motohiro Nishida, Noriko Karasaki, Kohei Kakino, Takeru Ebihara, Takumi Nagasato, Masato Hino, Ayaka Nakashima, Kengo Suzuki, Yoshino Tonooka, Miyu Tanaka, Takato Moriyama, Hirokazu Nakatake, Ryosuke Fujita, Takahiro Kusakabe

    Frontiers in immunology   12   803647   2021.8   ISSN:1664-3224

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    カイコ-バキュロウイルス発現系を用いて新型コロナウイルスワクチン抗原の大量生産に成功し、人への投与が認可されているAlumアジュバントを用いて十分な中和抗体誘導のうがあることを動物実験等で確認した。

    DOI: 10.3389/fimmu.2021.803647

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  • Stable trimer formation of spike protein from porcine epidemic diarrhea virus improves the efficiency of secretory production in silkworms and induces neutralizing antibodies in mice. International journal

    Akitsu Masuda, Jae Man Lee, Takeshi Miyata, Takeru Ebihara, Kohei Kakino, Masato Hino, Ryosuke Fujita, Hiroaki Mon, Takahiro Kusakabe

    Veterinary research   52 ( 1 )   102 - 102   2021.7

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    Porcine epidemic diarrhea virus (PEDV) is a highly infectious pathogen of watery diarrhea that causes serious economic loss to the swine industry worldwide. Especially because of the high mortality rate in neonatal piglets, a vaccine with less production cost and high protective effect against PEDV is desired. The intrinsically assembled homotrimer of spike (S) protein on the PEDV viral membrane contributing to the host cell entry is a target of vaccine development. In this study, we designed trimerized PEDV S protein for efficient production in the silkworm-baculovirus expression vector system (silkworm-BEVS) and evaluated its immunogenicity in the mouse. The genetic fusion of the trimeric motif improved the expression of S protein in silkworm-BEVS. A small-scale screening of silkworm strains to further improve the S protein productivity finally achieved the yield of about 2 mg from the 10 mL larval serum. Mouse immunization study demonstrated that the trimerized S protein could elicit strong humoral immunity, including the S protein-specific IgG in the serum. These sera contained neutralizing antibodies that can protect Vero cells from PEDV infection. These results demonstrated that silkworm-BEVS provides a platform for the production of trimeric S proteins, which are promising subunit vaccines against coronaviruses such as PEDV.

    DOI: 10.1186/s13567-021-00971-5

  • Efficient production of recombinant T7 endonuclease I using silkworm-baculovirus expression vector system Invited Reviewed International journal

    Kakino, Kohei; Masuda, Akitsu; Hino, Masato; Ebihara, Takeru; Xu, Jian; Mon, Hiroaki; Fujita, Ryosuke; Fujii, Tsuguru; Kusakabe, Takahiro; Lee, Jae Man

    JOURNAL OF ASIA-PACIFIC ENTOMOLOGY   23 ( 3 )   694 - 700   2020.8

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    DOI: 10.1016/j.aspen.2020.05.001

  • Efficient production of recombinant SARS-CoV-2 spike protein using the baculovirus-silkworm system Invited Reviewed International journal

    Fujita, Ryosuke; Hino, Masato; Ebihara, Takeru; Nagasato, Takumi; Masuda, Akitsu; Lee, Jae Man; Fujii, Tsuguru; Mon, Hiroaki; Kakino, Kohei; Nagai, Ryo; Tanaka, Miyu; Tonooka, Yoshino; Moriyama, Takato; Kusakabe, Takahiro

    BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS   529 ( 2 )   257 - 262   2020.8

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    DOI: 10.1016/j.bbrc.2020.06.020

  • Proteasome inhibitor MG132 impairs autophagic flux through compromising formation of autophagosomes in Bombyx cells Reviewed International journal

    takahiro kusakabe

    479   690 - 696   2016.11

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  • Characterization of the roles of DNA polymerases, clamp, and clamp loaders during S-phase progression and cell cycle regulation in the silkworm, Bombyx mori Reviewed International journal

    takahiro kusakabe

    85   21 - 29   2016.6

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  • Differential N-Glycan Modifications of Human Alpha 1-Acid Glycoprotein (α1AGP) Produced in Different Silkworm Strains using the Baculovirus Expression System Reviewed International journal

    Daisuke Morokuma, 門 宏明, YUTAKA BANNO, takahiro kusakabe, JAE MAN LEE

    84 ( 2 )   49 - 53   2016.5

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  • Comparative proteomic analysis of hemolymph proteins from Autographa californica multiple nucleopolyhedrovirus (AcMNPV)-sensitive or -resistant silkworm strains during infections Reviewed International journal

    takahiro kusakabe

    COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS   16   36 - 47   2015.12

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    DOI: 10.1016/j.cbd.2015.07.003

  • Roles of silkworm endoplasmic reticulum chaperones in the secretion of recombinant proteins expressed by baculovirus system Reviewed International journal

    takahiro kusakabe

    MOLECULAR AND CELLULAR BIOCHEMISTRY   409 ( 1-2 )   255 - 262   2015.11

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    DOI: 10.1007/s11010-015-2529-5

  • Loqs depends on R2D2 to localize in D2 body-like granules and functions in RNAi pathways in silkworm cells Reviewed International journal

    Li Zhu, Tsuneyuki Tatsuke, Jian Xu, Zhiqing Li, 門 宏明, JAE MAN LEE, takahiro kusakabe

    64   78 - 90   2015.9

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  • Mass Production of an Active Peptide-N-Glycosidase F Using Silkworm-Baculovirus Expression System Reviewed International journal

    takahiro kusakabe

    MOLECULAR BIOTECHNOLOGY   57 ( 8 )   735 - 745   2015.8

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    DOI: 10.1007/s12033-015-9866-1

  • Improvement of Endo-β-N-acetylglucosaminidase H production using silkworm–baculovirus protein expression system Reviewed International journal

    takahiro kusakabe

    Journal of Asia-Pacific Entomology   18 ( 2 )   175 - 180   2015.6

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  • Human alpha 1-acid glycoprotein as a model protein for glycoanalysis in baculovirus expression vector system Reviewed International journal

    takahiro kusakabe

    JOURNAL OF ASIA-PACIFIC ENTOMOLOGY   18 ( 2 )   303 - 309   2015.6

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    DOI: 10.1016/j.aspen.2015.03.006

  • Biochemical characterization of maintenance DNA methyltransferase DNMT-1 from silkworm, Bombyx mori Reviewed International journal

    日下部 宜宏

    INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY   58   2015.3

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    DOI: 10.1016/j.ibmb.2015.01.008

  • Dynamics of polycomb proteins-mediated histone modifications during UV irradiation-induced DNA damage Reviewed International journal

    日下部 宜宏

    INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY   55   2014.12

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    DOI: 10.1016/j.ibmb.2014.10.001

  • Differential contribution of the Fanconi anemia-related proteins to repair of several types of DNA damage in cultured silkworm cells Reviewed International journal

    日下部 宜宏

    FEBS LETTERS   588 ( 21 )   2014.11

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    DOI: 10.1016/j.febslet.2014.09.009

  • A conserved SUMOylation signaling for cell cycle control in a holocentric species Bombyx mori Reviewed International journal

    日下部 宜宏

    INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY   51   2014.8

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    DOI: 10.1016/j.ibmb.2014.05.008

  • Expression, Purification, and Characterization of Endo-beta-N-Acetylglucosaminidase H Using Baculovirus-Mediated Silkworm Protein Expression System

    日下部 宜宏

    APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY   172 ( 8 )   2014.4

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    DOI: 10.1007/s12010-014-0814-5

  • Soaking RNAi-mediated modification of Sf9 cells for baculovirus expression system by ectopic expression of Caenorhabditis elegans SID-1

    日下部 宜宏

    97 ( 13 )   2013.7

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    DOI: 10.1007/s00253-013-4785-1

  • TIGHTLY CONTROLLED TETRACYCLINE-INDUCIBLE TRANSCRIPTION SYSTEM FOR EXPLOSIVE GENE EXPRESSION IN CULTURED SILKWORM CELLS

    日下部 宜宏

    ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY   82 ( 4 )   2013.4

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    DOI: 10.1002/arch.21083

  • Coexpression of Escherichia coli RNase III in silkworm cells improves the efficiency of RNA interference induced by long hairpin dsRNAs

    日下部 宜宏

    INSECT SCIENCE   20 ( 1 )   2013.2

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    DOI: 10.1111/j.1744-7917.2012.01569.x

  • Cell Cycle-Dependent Recruitment of Polycomb Proteins to the ASNS Promoter Counteracts C/ebp-Mediated Transcriptional Activation in Bombyx mori

    日下部 宜宏

    PLOS ONE   8 ( 1 )   2013.1

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    DOI: 10.1371/journal.pone.0052320

  • Comparison of signal peptides for efficient protein secretion in the baculovirus-silkworm system

    日下部 宜宏

    CENTRAL EUROPEAN JOURNAL OF BIOLOGY   8 ( 1 )   2013.1

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    DOI: 10.2478/s11535-012-0112-6

  • Establishment of a Bombyx mori nucleopolyhedrovirus (BmNPV) hyper-sensitive cell line from the silkworm e21 strain

    日下部 宜宏

    BIOTECHNOLOGY LETTERS   34 ( 10 )   2012.10

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    DOI: 10.1007/s10529-012-0971-y

  • RNA Interference Induction by Long Hairpin dsRNAs Expressed from Chromosomal DNA of Bombyx mori Cells

    日下部 宜宏

    JOURNAL OF THE FACULTY OF AGRICULTURE KYUSHU UNIVERSITY   57 ( 2 )   2012.9

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    Repository Public URL: http://hdl.handle.net/2324/25203

  • Bombyx mori strains useful for efficient recombinant protein production using a baculovirus vector. Reviewed International journal

    Lee, J., Mon, H., Banno, Y., Iiyama, K., Kusakabe, T.

    J. Biotech. Biomater.   2012.6

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  • Molecular cloning of BmTUDOR-SN and analysis of its role in RNAi pathway in the silkworm, Bombyx mori (Lepidoptera: Bombycidae). Reviewed International journal

    Zhu, L., Tatsuke, T., Li, Z., Mon, H., Xu, Z., Lee, J., and Kusakabe T.,

    Appl. Entomol. Zool.   2012.6

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  • Monoubiquitination-Dependent Chromatin Loading of FancD2 in Silkworms, a Species Lacking the FA Core Complex. Reviewed International journal

    Sugahara, R., Mon, H., Lee, J., and Kusakabe, T.,

    Gene   2012.5

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  • Genome-wide identification of Polycomb target genes reveals a functional association of Pho with Scm in Bombyx mori. Reviewed International journal

    Li, Z., Cheng, D., Mon, H., Tatsuke, T., Zhu, L., Xu, J., Lee, J., Xia, Q., and Kusakabe, T.

    PLoS ONE,   7   2012.4

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  • Molecular cloning of the silkworm p53R2 homolog gene. International journal

    Fujii, M., Takahashi, M., Mon, H., Tatsuke, T., Lee, J., and Kuskabe T.

    J. Fac. Agr. Kyushu Univ.,   57   2012.4

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  • Expression of glycosylated mucin-like domain using baculovirus expression system in silkworm, Bombyx mori. International journal

    Nagata, Y., Sakashita, K., Imanishi, S., Lee, J., and Kuskabe T.

    J. Fac. Agr. Kyushu Univ.,   57   2012.4

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  • Identification and characterization of Polycomb group genes in the silkworm, Bombyx mori. Reviewed International journal

    Li, Z., Tatsuke, T., Sakashita, K., Zhu, L., Xu, J., Mon, H., Lee, J., and Kusakabe, T.

    Mol. Biol. Report,   39   2012.1

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  • Effective RNA interference in cultured silkworm cells mediated by overexpression of Caenorhabditis elegans SID-1. Reviewed International journal

    Mon, H., Kobayashi, I., Ohkubo, S. Tomita, S., Lee, J., Sezutsu, H., Tamura, T., Kusakabe, T.

    RNA Biol.,   9   2012.1

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  • Molecular Characterization of heterochromatin proteins 1a and 1b from the Silkworm, Bombyx mori. Reviewed International journal

    Mitsunobu, H., Izumi, H., Mon, H., Tatsuke, T., Lee, J., Kusakabe, T.

    Insect Mol. Biol.   21   2012.1

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  • Double-strand breaks repair by gene conversion in silkworm holocentric chromosomes Reviewed International journal

    Mon, H., Lee, J., Kawaguchi, Y., Kusakabe, T.

    Mol. Genet. Genomics   2011.9

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  • Post-translational modifications of the N-terminal tail of histone H3 in holocentric chromosomes of bombyx mori. Insect Biochem. Reviewed International journal

    Mon, H., Izumi, M., Mitsunobu, H., Tatsuke, T., Iiyama, K., Jikuya, H., Lee, J., Kusakabe, T.

    Mol. Genet. Genomics   2011.9

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  • Molecular Characterization of heterochromatin proteins 1a and 1b from the Silkworm, Bombyx mori. Reviewed International journal

    Mitsunobu, H., Izumi, H., Mon, H., Tatsuke, T., Lee, J., Kusakabe, T.

    Insect Mol. Biol.   2011.4

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  • Molecular Characterization of Core Histones in the Silkworm, Bombyx mori. Reviewed International journal

    Mitsunobu, H., Izumi, M., Iiyama, K., Jikuya, H., Lee, J., Mon, H., Kawaguchi, Y., Kusakabe, T.

    J. Insect Biotech. Seric.   79   2010.10

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  • The telomere-specific non-LTR retrotransposons SART1 and TRAS1 are suppressed by Piwi subfamily proteins in the silkworm, Bombyx mori. Reviewed International journal

    Tatsuke, T., Sakashita, K., Masaki, Y., Lee, J., Kawaguchi, Y., Kusakabe, T.

    Cell. Mol. Biol. Lett.   15   2010.4

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  • Efficient Soluble Protein Production on Transgenic Silkworms Expressing Cytoplasmic Chaperones using Baculovirus Expression System. Reviewed International journal

    Hong, S.M., Yamashita, J., Mitsunobu, H., Uchino, K., Kobayashi, I., Tamura, T., Nakajima, H., Miyagawa, H., Lee, J.M., Mon, H., Miyata, T., Kawaguchi, Y., Kusakabe, T.

    Appl. Microbiol. Biotech   2010.4

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  • Molecular Characterization, Localization, and Distribution of Innexins in the Silkworm, Bombyx mori. Reviewed International journal

    Hong, S.M., Noh, S.K., Kim, K.A., Mitsunobu, H., Mon, H., Lee, J.M., Kawaguchi, Y., Kusakabe, T.

    Mol. Biotechnol.   2009.9

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  • Analysis of protein interactions with two-hybrid system in cultured insect cells. Reviewed International journal

    Mon, H., Sugahara, R., Hong, S.M., Lee, J., Kamachi, Y., Kawaguchi, Y., Kusakabe, T.

    Anal. Biochem.   2009.9

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  • Establishment of Tetracycline-inducible Gene Expression Systems in the Silkworm, Bombyx mori. Reviewed International journal

    Karasaki, N., Mon, H., Takahashi, M., Lee, J., Koga, K., Kawaguchi, Y., Kusakabe, T.

    Biotechnol. Lett.   2009.6

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  • Sequence-Nonspecific Suppression of Gene Expression by Double-stranded RNA in Silkworm Cultured Cells. Reviewed International journal

    Sakashita, K., Tatsuke, T., Lee, J., Kawaguchi, Y., and Kusakabe, T.

    J. Insect Biotech. Seric.   2009.6

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  • dsRNA Binding Activity of Silkworm Larval Hemolymph is Mediated by Lipophorin Complex

    Sakashita, K., Tatsuke, T., Masaki, Y., Lee, J., Kawaguchi, Y., Kusakabe, T.

    J. Fac. Agr., Kyushu Univ.   2009.4

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    DOI: 54

  • Construction of piggyBac-based Vectors Using Visible and Drug-resistance Marker for Introducing Foreign Genes into Silkworm Cultured Cells.

    Tatsuke, T., Hong, S.M., Tobata, H., Mon, H., Lee, J., Kawaguchi, Y., Kusakabe, T.

    J. Fac. Agr., Kyushu Univ.   54   2009.4

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    Repository Public URL: http://hdl.handle.net/2324/16121

  • Construction of gene expression systems in insect cell lines using promoters from the silkworm, Bombyx mori. Reviewed International journal

    Lee, J., Takahashi, M., Mon, H., Nakajima, Y., Koga, K., Kawaguchi, Y., Kusakabe, T.,

    J. Biotechnol.   2008.6

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  • Efficient Protein Expression in Bombyx mori Larvae of the Strain d17 Highly Sensitive to B. mori Nucleopolyhedrovirus. Reviewed International journal

    Kawakami, N., Lee, J., Mon, H., Kubo, Y., Banno, Y., Kawaguchi, Y., Maenaka, K., Park, E.Y., Koga, K., Kusakabe, T.,

    Mol. Biotechnol.   2008.6

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  • Screening of high-permissive silkworm strains for efficient recombinant protein production in Autographa californica nuclear polyhedrosis virus (AcNPV). Reviewed International journal

    Lee, J., Mon, H., Takahashi, M., Kawakami, N. Yoshida, Y., Banno, Y., Koga, K., Kawaguchi, Y., Kusakabe, T.,

    J. Insect Biotech. Seric.   2007.6

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  • Heterotrimeric Complex of Replication Protein A, a Single-Stranded DNABinding Protein, from the Silkworm, Bombyx mori. Reviewed International journal

    Sugahara, R., Mon, H., Yamashita, J., Mitsunobu, H., Lee, J., Kawaguchi, Y., Koga, K., and Kusakabe, T.,

    J. Insect Biotech. Seric.   2007.6

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  • Molecular Cloning of Silkworm Cdc37 and its Interaction with Hsp90 Chaperon. Reviewed International journal

    Yamashita, J., Miyagawa, Y., Sugahara, R., Mon, H., Mitsunobu, H., Lee, J., Kawaguchi, Y., and Kusakabe, T.,

    J. Insect Biotech. Seric.   2007.6

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  • Radiation resistance and its inheritance in the silkworm, Bombyx mori. International journal

    Takahashi M., Lee J., Mon H., Yoshida H., Kawaguchi Y., Maekawa H., Koga K., and Kusakabe T.

    J. Fac. Agr., Kyushu Univ.   2006.10

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  • Construction of gateway-based destination vectors for detecting subcellular localization of proteins in the silkworm, Bombyx mori. Reviewed International journal

    Mitsunobu H., Sakashita K., Mon H., Lee J., Kawaguchi Y., Koga K., and Kusakabe T.

    J. Insect Biotech. Seric.   2006.10

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  • Role of the Silkworm Argonaute2 Homologue Gene in Double-Strand Break Repair of Extrachromosomal DNA. Reviewed International journal

    Tsukioka H., Takahashi M., Mon H., Okano K., Mita K., Shimada T., Lee J., Kawaguchi Y., Koga K., and Kusakabe T.

    Nucleic Acids Res.   2006.2

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  • Site-specific gene integration in cultured silkworm cells mediated by φC31 integrase. Reviewed International journal

    Nakayama G., Kawaguchi Y., Koga K., and Kusakabe T.

    Mol. Genet. Genomics   2006.1

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  • Inheritance of gon, a body color mutation of newly hatched larvae in Bombyx mori. Reviewed International journal

    Kawaguchi, Y., Doira, H., Ohta, K., Kusakabe, T., and Koga, K.

    J. Insect Biotech. Seric.   2005.1

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  • Efficient gene transfer into silkworm larval tissues by a combination of sonoporation and lipofection. Reviewed International journal

    Lee J., Takahashi M., Mon H., Koga K., Kawaguchi Y., and Kusakabe T.

    Cell Biol. Int.   29 ( 11 )   976 - 979   2005.1

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    DOI: 10.1016/j.cellbi.2005.07.007

  • Nonhomologous end-joining in a cell-free extract from the cultured silkworm cell line BmN4. Reviewed International journal

    Ohsaki A., Iiyama K., Miyagawa Y., Kawaguchi Y., Koga K., and Kusakabe T.

    Mol. Biol. Reports   32 ( 1 )   25 - 34   2005.1

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    DOI: 10.1007/s11033-004-2474-y

  • Cloning and Characterization of a Ribonuclease L Inhibitor from the Silkworm, Bombyx mori. Reviewed International journal

    Maeda T., Kusakabe T., Lee J., Miyagawa Y., Kawaguchi Y., Koga K.

    DNA Sequence   16 ( 1 )   21 - 27   2005.1

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    DOI: 10.1080/10425170400028871

  • Differential expression of a Bombyx mori AHA1 homologue during spermatogenesis. Reviewed International journal

    Miyagawa Y., Lee J., Maeda T., Koga K. Kawaguchi Y., Kusakabe T.

    Insect Mol. Biol.   14 ( 3 )   245 - 253   2005.1

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    DOI: 10.1111/j.1365-2583.2004.00553.x

  • Thermostabilized ovalbumin that occurs naturally during development accumulates in embryonic tissues. Reviewed International journal

    Shinohara H., Iwasaki T., Miyazaki Y., Matsuo K., Aoki T., Matsumoto M., Oka T., Kurisaki J.I., Mizumachi K., Kusakabe T., Koga K., and Sugimoto Y.

    Biochim. Biophys. Acta   1723 ( 1-3 )   106 - 113   2005.1

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    DOI: 10.1016/j.bbagen.2005.02.016

  • Pathogenicity of gacA mutant of Pseudomonas aeruginosa PA01 in the silkworm, Bombyx mori. Reviewed International journal

    Chieda,Y., Iiyama,K., Yasunaga-Aoki, C., Lee, J., Kusakabe, T., Shimizu, S.

    FEMS Microbiol. Lett.   244 ( 1 )   181 - 186   2005.1

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    DOI: 10.1016/j.femsle.2005.01.032

  • Analysis of artificial and spontaneous parthenogenetic development in mosaic mutations and the parthenogenetic strain of Bombyx mori. Reviewed International journal

    Kusakabe T., Kido K., Kita K., Banno Y., Mon H., Kawaguchi Y., and Koga K.

    Invert. Repro. Develop.   45 ( 2 )   101 - 108   2004.1

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    DOI: 10.1080/07924259.2004.9652579

  • A method for measuring the efficiency of gene targeting in cultured silkworm cells. Reviewed International journal

    Mon H., Kusakabe, T., Lee, J., Kawaguch, Y., and Koga, K.

    Comp. Biochem. Phys.   2004.1

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  • Molecular cloning and characterization of the translationally controlled tumor protein (TCTP) gene in Bombyx mori. Reviewed International journal

    Lee J., Kusakabe T., Kawaguchi Y., Takahashi M., Mon H., Nho S., and Koga K.

    Comp. Biochem. Phys.   139 ( 1 )   35 - 43   2004.1

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    DOI: 10.1016/j.cbpc.2004.06.004

  • Analysis of extrachromosomal homologous recombination in cultured silkworm cells Reviewed International journal

    Mon, H., Kusakabe, T., Bando, H., Kojima, K., Kawaguch, Y., and Koga, K.

    Biochem. Biophys. Res. Commun.   312 ( 3 )   684 - 690   2003.12

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    DOI: 10.1016/j.bbrc.2003.10.169

  • Influence of N-metyl-N-nitrosourea treatment on embryogenesis of Bombyx mori Reviewed

    Kawaguchi, Y., Kusakabe, T., and Koga, K.

    J. Fac. Agr., Kyushu Univ.   48 ( 1-2 )   59 - 64   2003.9

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  • Chorion architecture in the Japanese giant silkmoth, Caligula japonica japonica moore Reviewed International journal

    Kawaguchi, Y., Ichida, M., Kusakabe, T., and Koga, K.

    Sericologia   2003.6

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  • Histological studies on the yolk granule formation in the egg character mutant, vit, of Bombyx mori Reviewed International journal

    Fujikawa, T., Kawaguchi, Y., Kusakabe, T., and Koga, K.

    J. Insect Biotech. Seric.   2003.5

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  • Molecular characterization of a Heat Shock Cognate 70-4 promoter from the silkworm, Bombyx mori Reviewed International journal

    Lee, J., Kusakabe, T., Kawaguchi, Y., Aoki, C., Nho, S., and Koga, K.

    J. Insect Biotech. Seric.   2003.2

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  • Cloning and characterization of testis-specific tektin in Bombyx mori Reviewed International journal

    Ota, A., Kusakabe, T., Yasushi Sugimoto, Takahashi, T., Nakajima, Y., Y Kawaguchi, Y., and Koga, K.

    Comp. Biochem. Phys.   133 ( 3 )   371 - 382   2002.3

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    DOI: 10.1016/S1096-4959(02)00153-7

  • Change in phenoloxidase and its precursor during silkworm (a80 strain) development. Reviewed

    Yamamoto, T., Fujii, H., Kusakabe, T., Koga, K., Aso, Y., and Ishiguro, M.

    J. Fac. Agr., Kyushu Univ.   45 ( 2 )   487 - 493   2001.1

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    Repository Public URL: http://hdl.handle.net/2324/24399

  • Effect of upstream DNA architecture on transcription of a human LINE-1. Reviewed International journal

    Miyano, M., Okabe, T., Kusakabe, T., and Ohyama, T.

    J. Adv. Sci.   2001.1

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  • Identification of three annexin IX isoforms generated by alternative splicing of the carboxyl-terminal exon in silkworm, Bombyx mori. Reviewed International journal

    Xia Q., Fujii H., Kusakabe T., and Banno Y.

    Insect Biochem. Mol. Biol.   32 ( 1 )   9 - 14   2001.1

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    DOI: 10.1016/S0965-1748(01)00074-1

  • Quantitation of mRNA using in vitro RNA amplification and Northern hybridization. Reviewed International journal

    Tone, S., Kubo, T., Ohyama, T., Kusakabe, T., and Minatogawa, Y.

    Anal. Biochem.   284 ( 2 )   420 - 422   2000.1

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    DOI: 10.1006/abio.2000.4745

  • Effect of ooplasmic size on the larval development as observed in the small egg mutant emi of Bombyx mori. Reviewed

    Kawaguchi, Y., Kusakabe, T., Banno, Y., and Koga, K.

    J. Sericult. Sci. JPN.   1999.1

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  • Unique chorion structure of the mottled gray (mgr) egg, an egg-character mutation of Bombyx mori (Lepidoptera: Bombycidae). Reviewed International journal

    Kawaguchi, Y., Kusakabe, T., and Koga, K.

    Appl. Entomol. Zool.   34 ( 3 )   359 - 364   1999.1

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  • Roles of the helicase and primase domain of the gene 4 protein of bacteriophage T7 in accessing primase recognition site. Reviewed International journal

    Kusakabe, T., Baradaran, K., Lee, J., and Richardson, C. C.

    EMBO J.   1998.1

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  • Coordinated leading and lagging strand DNA synthesis on a mini-circular template. Reviewed International journal

    Lee, J., Chastain, P. D., Kusakabe, T., Griffith, J. D., and Richardson, C. C.

    Mol. Cell   1998.1

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  • Template recognition and ribonucleotide specificity of the DNA primase of bacteriophage T7. Reviewed International journal

    Kusakabe, T., and Richardson, C. C.

    J. Biol. Chem.   1997.1

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  • Gene 4 DNA primase of bacteriophage T7 mediates the annealing and extension of oligonucleotides at primase recognition sites. Reviewed International journal

    Kusakabe, T., and Richardson, C. C.

    J. Biol. Chem.   1997.1

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  • Caenorhabditis elegans has two isozymic forms, CE-1 and CE-2, of fructose-1,6-bisphosphate aldolases which are encoded by different genes. Reviewed International journal

    Inoue, T., Yatsuki, H., Kusakabe, T., Joh, K., Takasaki, Y., Nikoh, N., Miyata, T., and Hori, K.

    Arch. Biochem. Biophys.   1997.1

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  • Mode of interactions of human aldolase isozymes with cytoskeletons. Reviewed International journal

    Kusakabe, T., Motoki, K., and Hori, K.

    Arch. Biochem. Biophys.   1997.1

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  • Molecular evolution of amphioxus fructose-1,6-bisphosphate aldolases. Reviewed International journal

    Kuba, M, Yatsuki, H., Kusakabe. T., Takasaki. Y., Nikoh. N., Miyata. T., Yamaguchi. T., and Hori, K.

    Arch. Biochem. Biophys.   1997.1

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  • Monoclonal anti-human aldolase C antibodies that react to the isozyme group-specific sequences and generally conserved sequences of human aldolase C. Reviewed International journal

    Kaihara, R., Matsuhashi, S., Kusakabe, T., Kondo, T., Iwanaga, A., and Hori, K.

    J. Biochem.   1996.1

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  • Analysis of the in vitro translation products of a novel type Drosophila melanogaster aldolase mRNA in which two carboxyl-terminal exon remain unspliced. Reviewed International journal

    Sugimoto, Y., Kusakabe, T., Kai, T., Okamura, T., Koga, K., and Hori, K.

    Arch. Biochem. Biophys.   323 ( 2 )   361 - 366   1995.1

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    DOI: 10.1006/abbi.1995.9953

  • Human aldolase B: Liver-specific properties of the isozyme depend on type-B isozyme group-specific sequences. Reviewed International journal

    Kusakabe, T., Motoki, K., Sugimoto, Y., Takasaki, Y., and Hori, K.

    Protein Enginieer.   1994.1

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  • Production of Norovirus VLPs of the Nine Representative Genotypes Widely Distributed in Japan using the Silkworm-Baculovirus Expression Vector System

    Yuto Tsurumi, Keisuke Morimoto, Akitsu Masuda, Jae Man Lee, Hiroaki Mon, Takahiro Kusakabe

    Journal of Virological Methods   331   115038 - 115038   2025.1   ISSN:0166-0934 eISSN:1879-0984

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    Norovirus (NoV) is one of the major causes of acute viral gastroenteritis in humans. Genetic variation is abundant, and prevalent genotypes vary from year to year and region to region. Since NoVs are difficult to amplify in cultured cells, genome RNA-free virus-like particles (VLPs) that mimic the capsid structure of the virus are promising vaccine candidates for the prevention of NoVs infection, and the development of multivalent VLP vaccines is required to prevent NoV infection in a wide range of genotypes. In this study, we attempted to produce NoV VLPs of the top nine genotypes that have a history of epidemics in Japan using the silkworm-baculovirus expression vector system (silkworm-BEVS), which has a proven track record in the mass production of recombinant proteins. In silkworm pupae infected with recombinant baculoviruses constructed to express VP1s, the major protein that forms VLP, the NoV VP1 protein was expressed in large amounts. Most genotypes of VP1 accumulated in the cytoplasm as soluble proteins, but solubility was reduced for that of two genotypes. VP1s of five genotypes could be purified in large quantities (>0.9 mg per pupa) by a two-step purification process, and gel filtration chromatography analysis confirmed the formation of VLPs. This study demonstrates the utility of silkworm-BEVS in producing NoV VLPs of multiple genotypes and provides the basis for the development of a multivalent vaccine against genetically diverse NoV infections.

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  • Efficient and Accurate BmNPV Bacmid Editing System by Two-step Golden Gate Assembly

    Takeru Ebihara, Misaki Shibuya, Ayaka Yamaguchi, Masato Hino, Jae Man Lee, Takahiro Kusakabe, Hiroaki Mon

    Journal of Virological Methods   330   115029 - 115029   2024.12   ISSN:0166-0934 eISSN:1879-0984

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    The silkworm-baculovirus expression vector system (silkworm-BEVS), using Bombyx mori nucleopolyhedrovirus (BmNPV) and silkworm larvae or pupae, has been used as a cost-effective expression system for the production of various recombinant proteins. Recently, several gene knockouts in baculoviruses have been shown to improve the productivity of recombinant proteins. However, the gene editing of the baculovirus genome (approximately 130 kb) remains challenging and time-consuming. In this study, we sought to further enhance the productivity of the silkworm-BEVS by synthesizing and gene editing the BmNPV bacmid from plasmids containing fragments of BmNPV genomic DNA using a two-step Golden Gate Assembly (GGA). The BmNPV genome, divided into 19 fragments, was amplified by PCR and cloned into the plasmids. From these initial plasmids, four intermediate plasmids containing the BmNPV genomic DNA were constructed by GGA with the type IIS restriction enzyme BsaI. Subsequently, the full-length bacmid was successfully synthesized from the four intermediate plasmids by GGA with another type IIS restriction enzyme PaqCI with a high efficiency of 97.2 %. Furthermore, this methodology enabled the rapid and straightforward generation of the BmNPV bacmid lacking six genes, resulting in the suppression of degradation of recombinant proteins expressed in silkworm pupae. These results indicate that the BmNPV bacmid can be quickly and efficiently edited using only simple cloning techniques and enzymatic reactions, marking a significant advancement in the improvement of the silkworm-BEVS.

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  • Analysis of B-cell receptor repertoire to evaluate the immunogenicity of SARS-CoV-2 RBD mRNA vaccine: MAFB-7256a (DS-5670d)

    Ohji, G; Funakoshi, Y; Yakushijin, K; Matsutani, T; Sasaki, T; Kusakabe, T; Matsumoto, S; Koyama, T; Nagatani, Y; Kurata, K; Kimbara, S; Kiyota, N; Minami, H

    FRONTIERS IN IMMUNOLOGY   15   1468760   2024.10   ISSN:1664-3224

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    A monovalent Omicron XBB.1.5 mRNA RBD analogue vaccine, MAFB-7256a (DS-5670d), was newly developed and approved in Japan in the Spring of 2024 for the prevention of COVID-19. However, clinical efficacy data for this vaccine are currently lacking. We previously established the Quantification of Antigen-specific Antibody Sequence (QASAS) method to assess the response to SARS-CoV-2 vaccination at the mRNA level using B-cell receptor (BCR) repertoire assays and the Coronavirus Antibody Database (CoV-AbDab). Here, we used this method to evaluate the immunogenicity of MAFB-7256a. We analyzed repeated blood samples using the QASAS method from three healthy volunteers before and after MAFB-7256a vaccination. BCR response increased rapidly one week post-vaccination and then decreased, as with conventional vaccine. Notably, the matched sequences after MAFB-7256a vaccination specifically bound to the receptor-binding domain (RBD), with no sequences binding to other epitopes. These results validate that MAFB-7256a is an effective vaccine that exclusively induces antibodies specific for the RBD, demonstrating its targeted immunogenic effect.

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  • Diabetic Mice Spleen Vulnerability Contributes to Decreased Persistence of Antibody Production after SARS-CoV-2 Vaccine

    Atef, Y; Ito, T; Masuda, A; Kato, Y; Nishimura, A; Kanda, Y; Kunisawa, J; Kusakabe, T; Nishida, M

    INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES   25 ( 19 )   2024.10   ISSN:1661-6596 eISSN:1422-0067

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    During the COVID-19 pandemic, diabetic and obese patients experienced higher rates of hospital admissions, severe illness, and mortality. However, vaccinations failed to provide those vulnerable populations the same level of protection against COVID-19 severity as those without diabetic and obese phenotypes. Our study aimed to investigate how diabetes mellitus (DM) impacts the immune response following vaccination including the artificially designed trimeric SARS-CoV-2 spike (S)-protein. By using two diabetic mouse models, ob/ob mice (obese, hyperglycemic, and insulin-resistant) and STZ-treated mice (insulin-deficient and hyperglycemic), we observed a significant reduction in S-protein-specific IgG antibody titer post-vaccination in both diabetic models compared to wild-type (WT) mice. Both diabetic mouse models exhibited significant abnormalities in spleen tissue, including marked reductions in splenic weight and the size of the white pulp regions. Furthermore, the splenic T-cell and B-cell zones were notably diminished, suggesting an underlying immune dysfunction that could contribute to impaired antibody production. Notably, vaccination with the S-protein, when paired with an optimal adjuvant, did not exacerbate diabetic cardiomyopathy, blood glucose levels, or liver function, providing reassurance about the vaccine′s safety. These findings offer valuable insights into potential mechanisms responsible for the decreased persistence of antibody production in diabetic patients.

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  • Analysis of B-cell receptor repertoire to evaluate immunogenicity of monovalent Omicron XBB.1.5 mRNA vaccines

    Funakoshi, Y; Yakushijin, K; Ohji, G; Matsutani, T; Doi, K; Sakai, H; Sasaki, T; Kusakabe, T; Matsumoto, S; Saito, Y; Kawamoto, S; Yamamoto, K; Koyama, T; Nagatani, Y; Kurata, K; Kimbara, S; Imamura, Y; Kiyota, N; Ito, M; Minami, H

    EJHAEM   5 ( 4 )   661 - 668   2024.8   ISSN:2688-6146

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  • Effective expression and characterization of the receptor binding domains in SARS-CoV-2 Spike proteins from original strain and variants of concern using Bombyx mori nucleopolyhedrovirus in silkworm

    Akira Tsukamoto, Lee Jae Man, Kosuke Oyama, Akitsu Masuda, Hiroaki Mon, Tadashi Ueda, Takahiro Kusakabe

    Protein Expression and Purification   218   106450 - 106450   2024.6   ISSN:1046-5928 eISSN:1096-0279

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    A new coronavirus, known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is responsible for the global pandemic of COVID-19 in 2020. Through structural analysis, it was found that several amino acid residues in the human angiotensin-converting enzyme-2 (hACE2) receptor directly interact with those in the receptor binding domain (RBD) of the spike glycoprotein (S-protein). Various cell lines, including HEK293, HeLa cells, and the baculovirus expression vector system (BEVS) with the insect cell line Sf9, have been utilized to produce the RBD. In this study, we investigated the use of Bombyx mori nucleopolyhedrovirus (BmNPV) and BEVS. For efficient production of a highly pure recombinant RBD protein, we designed it with two tags (His tag and STREP tag) at the C-terminus and a solubilizing tag (SUMO) at the N-terminus. After expressing the protein using BmNPV and silkworm and purifying it with a HisTrap excel column, the eluted protein was digested with SUMO protease and further purified using a Strep-Tactin Superflow column. As a result, we obtained the RBD as a monomer with a yield of 2.6 mg/10 mL serum (equivalent to 30 silkworms). The RBD showed an affinity for the hACE2 receptor. Additionally, the RBDs from the Alpha, Beta, Gamma, Delta, and Omicron variants were expressed and purified using the same protocol. It was found that the RBD from the Alpha, Beta, Gamma, and Delta variants could be obtained with yields of 1.4–2.6 mg/10 mL serum and had an affinity to the hACE2 receptor.

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  • Blowflies are potential vector for avian influenza virus at enzootic area in Japan

    Fujita, R; Tachi, T; Hino, M; Nagata, K; Saiki, M; Inumaru, M; Higa, Y; Itokawa, K; Uemura, N; Matsumura, R; Kai, I; Sawabe, K; Kobayashi, M; Isawa, H; Kusakabe, T; Matsuo, K; Kasai, S

    SCIENTIFIC REPORTS   14 ( 1 )   10285   2024.5   ISSN:2045-2322

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    High pathogenicity avian influenza (HPAI) poses a significant threat to both domestic and wild birds globally. The avian influenza virus, known for environmental contamination and subsequent oral infection in birds, necessitates careful consideration of alternative introduction routes during HPAI outbreaks. This study focuses on blowflies (genus Calliphora), in particular Calliphora nigribarbis, attracted to decaying animals and feces, which migrate to lowland areas of Japan from northern or mountainous regions in early winter, coinciding with HPAI season. Our investigation aims to delineate the role of blowflies as HPAI vectors by conducting a virus prevalence survey in a wild bird HPAI-enzootic area. In December 2022, 648 Calliphora nigribarbis were collected. Influenza virus RT-PCR testing identified 14 virus-positive samples (2.2% prevalence), with the highest occurrence observed near the crane colony (14.9%). Subtyping revealed the presence of H5N1 and HxN1 in some samples. Subsequent collections in December 2023 identified one HPAI virus-positive specimen from 608 collected flies in total, underscoring the potential involvement of blowflies in HPAI transmission. Our observations suggest C. nigribarbis may acquire the HPAI virus from deceased wild birds directly or from fecal materials from infected birds, highlighting the need to add blowflies as a target of HPAI vector control.

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  • Distinct features of SARS-CoV-2 humoral immunity against Omicron breakthrough infection

    Goto, T; Chong, Y; Tani, N; Susai, N; Yoshinaga, T; Sasaki, T; Taniguchi, M; Kusakabe, T; Shimono, N; Akashi, K; Ikematsu, H

    VACCINE   41 ( 47 )   7019 - 7025   2023.11   ISSN:0264-410X eISSN:1873-2518

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    Background: SARS-CoV-2 Omicron breakthrough infection (Omicron-BTI) after vaccination has been frequently observed. A more detailed understanding of the humoral immunity against Omicron-BTI is required. Methods: We measured strain-specific live-virus based neutralizing activity, anti-spike IgG, and anti-receptor-binding domain (RBD) IgG titers in individuals with Omicron/BA.1-BTI and directly compared them with controls with diverse combinations of wild-type (WT) mRNA vaccination and infection history. Results: Omicron-BTI individuals showed markedly higher neutralizing titers against all the WT, Delta, and Omicron strains in convalescent sera, compared with unvaccinated Omicron-infection individuals with only Omicron neutralizing activity. Similar tendencies were found in strain-specific anti-spike and anti-RBD IgG titers. The Omicron-specificity (BA.1/WT neutralizing ratio), Omicron-neutralizing efficiency per antibody unit, and anti-Omicron RBD-directivity of anti-spike antibodies in Omicron-BTI individuals were all significantly lower than those in unvaccinated Omicron-infection individuals, but they were equivalent to or higher than those in uninfected vaccinees. The induction of Omicron-specific neutralizing activity after Omicron-BTI was not weakened for eight months from the last vaccination. Conclusions: These findings suggest that cross-reactive vaccine-induced immunity was intensively stimulated following Omicron breakthrough infection, which contributed to Omicron neutralization. Measuring SARS-CoV-2 variant-specific antibody levels as well as neutralizing activity is useful for evaluating humoral immunity after breakthrough infection in the current situation of antigenic gaps between vaccinated and epidemic (Omicron sub-lineages) strains.

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  • Tributyltin-binding protein type 1 (fish acid glycoprotein) is a potential gatekeeper of ethinylestradiol action in fish

    Hibiki Hakata, Yuki Takai, Jae Man Lee, Takahiro Kusakabe, Hina Satone, Yohei Shimasaki, Yuji Oshima

    Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology   271   109660 - 109660   2023.9   ISSN:1532-0456 eISSN:1878-1659

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    Tributyltin (TBT)-binding protein type 1 in Japanese medaka (Oryzias latipes) (O.latTBT-bp1) is a fish lipocalin implicated in TBT binding and detoxification. We purified recombinant O.latTBT-bp1 (rO.latTBT-bp1; ca. 30 kDa) by using a baculovirus expression system and His- and Strep-tag chromatography process. Then, we examined O.latTBT-bp1 binding to several endo/exogenous steroid hormones by means of competitive binding assay. The dissociation constants for the binding of rO.latTBT-bp1 to DAUDA and ANS, two fluorescent ligands of lipocalin, were 7.06 and 13.6 μM, respectively. Multiple model validations indicated that a single-binding-site model was the most appropriate for evaluating rO.latTBT-bp1 binding. In the competitive binding assay, testosterone, 11-ketotestosterone, and 17β-estradiol were each bound by rO.latTBT-bp1; rO.latTBT-bp1 showed the strongest affinity for testosterone (inhibition constant, Ki = 3.47 μM). Endocrine-disrupting chemical (synthetic steroid) also bound to rO.latTBT-bp1; the affinity for ethinylestradiol (Ki = 9.29 μM) was stronger than that for 17β-estradiol (Ki = 30.0 μM). To determine the function of O.latTBT-bp1, we produced TBT-bp1 knockout medaka (TBT-bp1 KO), which we exposed to ethinylestradiol for 28 days. After exposure, the number of papillary processes in TBT-bp1 KO genotypic male medaka was significantly fewer (3.5), compared to that in wild-type male medaka (22). Thus, TBT-bp1 KO medaka were more sensitive to the anti-androgenic effects of ethinylestradiol than wild-type medaka. These results indicate that O.latTBT-bp1 may bind to steroids and act as a gatekeeper of ethinylestradiol action by regulating the androgen–estrogen balance.

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  • Comprehensive Transcriptome Analysis in the Testis of the Silkworm, Bombyx mori

    Kohei Kakino, Hiroaki Mon, Takeru Ebihara, Masato Hino, Akitsu Masuda, Jae Man Lee, Takahiro Kusakabe

    Insects   14 ( 8 )   684 - 684   2023.8   ISSN:2075-4450 eISSN:2075-4450

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    Spermatogenesis is an important process in reproduction and is conserved across species, but in Bombyx mori, it shows peculiarities, such as the maintenance of spermatogonia by apical cells and fertilization by dimorphic spermatozoa. In this study, we attempted to characterize the genes expressed in the testis of B. mori, focusing on aspects of expression patterns and gene function by transcriptome comparisons between different tissues, internal testis regions, and Drosophila melanogaster. The transcriptome analysis of 12 tissues of B. mori, including those of testis, revealed the widespread gene expression of 20,962 genes and 1705 testis-specific genes. A comparative analysis of the stem region (SR) and differentiated regions (DR) of the testis revealed 4554 and 3980 specific-enriched genes, respectively. In addition, comparisons with D. melanogaster testis transcriptome revealed homologs of 1204 SR and 389 DR specific-enriched genes that were similarly expressed in equivalent regions of Drosophila testis. Moreover, gene ontology (GO) enrichment analysis was performed for SR-specific enriched genes and DR-specific enriched genes, and the GO terms of several biological processes were enriched, confirming previous findings. This study advances our understanding of spermatogenesis in B. mori and provides an important basis for future research, filling a knowledge gap between fly and mammalian studies.

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  • SARS-CoV-2 strain-specific anti-Spike IgG ELISA utilizing spike protein produced by silkworms

    Takeyuki Goto, Tomoki Sasaki, Yong Chong, Masahiro Taniguchi, Jae Man Lee, Akitsu Masuda, Takeru Ebihara, Kenichiro Shiraishi, Naoki Tani, Akiko Yonekawa, Kei Gondo, Hiroyuki Kuwano, Nobuyuki Shimono, Hideyuki Ikematsu, Koichi Akashi, Takahiro Kusakabe

    Human Antibodies   31 ( 3 )   1 - 7   2023.7   ISSN:1093-2607 eISSN:1875-869X

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    BACKGROUND: A cost-effective and eco-friendly method is needed for the assessment of humoral immunity against SARS-CoV-2 in large populations. OBJECTIVE: We investigated the performance of an ELISA that uses silkworm-produced proteins to quantify the strain-specific anti-Spike IgG (anti-S IgG) titer. METHODS: The OD values for the anti-His-tag antibody, a standard material of ELISA quantification, were measured. Correlations between the ELISA for each strain and the Abbott SARS-CoV-2 IgG II Quant assay for the wild type were evaluated with serum samples from nine participants with various infection and vaccination statuses. RESULTS: Linear dose-responses were confirmed by high coefficients of determination: 0.994, 0.994, and 0.996 for the wild-type, Delta, and Omicron (BA.1) strain assays, respectively. The coefficient of determination for the wild-type and Delta strain assays was high at 0.959 and 0.892, respectively, while the Omicron strain assay had a relatively low value of 0.563. Booster vaccinees showed similar or higher titers against all strains compared to infected persons without vaccination. The Omicron-infected persons without vaccination had lower antibody titers against wild type than did the vaccinated persons. CONCLUSIONS: This study provides data indicating that the ELISA with silkworm-produced proteins makes it possible to discriminate and quantify the strain-specific anti-S IgG antibody induced by vaccination or infection.

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  • Production of antiviral vaccine antigens using a silkworm-baculovirus expression system

    Kusakabe, T

    JOURNAL OF PHARMACOLOGICAL SCIENCES   151 ( 3 )   156 - 161   2023.3   ISSN:1347-8613 eISSN:1347-8648

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    The outbreak of the SARS-2-CoV infection has become a global outbreak and continues to cause many deaths. In addition, the risk of pandemics continues to increase due to environmental changes and the globalization of human exchange and logistics. On the other hand, our preparedness for emerging infectious diseases caused by such unknown viruses is inadequate, and dealing with viral infections is one of the most important issues that need to be addressed immediately. Vaccine based disease control is considered an ideal countermeasure for infectious diseases, as it is expected to provide maximum efficacy at minimum cost. Although new nucleic acid-based vaccines are leading the way in the prevention of COVID-19, the mainstream of vaccines is still inactivated or live attenuated vaccines that use the pathogen virus itself. Subunit vaccines, in which specific virus-derived proteins are produced as recombinant proteins and used as vaccine antigens, have been developed, but production and development of many antigens that are difficult to mass-produce as recombinant proteins, such as the spike protein antigen of COVID-19 has not progressed. This paper describes the development of recombinant protein vaccines using the silkworm, which has an advantage in the production of such difficult-to-express vaccine antigens, especially virus-like particles.

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  • Transdermal Transmission Blocking Vaccine for Malaria using a Solid-in-Oil Dispersion

    Keisuke Tanaka, Kosuke Minamihata, Rie Wakabayashi, Jae Man Lee, Takeshi Miyata, Takahiro Kusakabe, Noriho Kamiya, Masahiro Goto

    Journal of Pharmaceutical Sciences   112 ( 2 )   411 - 415   2023.2   ISSN:0022-3549 eISSN:1520-6017

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    Malaria is a mosquito-borne infectious disease that is widespread in developing countries. Malaria vaccines are important in efforts to eradicate malaria; however, vaccines are usually administered by injection, which requires medical personnel and has a risk of causing infection. Transdermal vaccines can be administered without damaging the skin and thus are ideal for the prevention of malaria. However, the stratum corneum forms a "brick and mortar" like structure in which stratum corneum cells are embedded in a hydrophobic matrix composed of lipids, which strongly inhibits the permeation of hydrophilic substances. In the present study, we designed a transdermal vaccine against vivax malaria using a solid-in-oil (S/O) dispersion. The S/O dispersion of a transmission blocking vaccine candidate, Pvs25 from Plasmodium vivax, showed higher skin penetration than that of the aqueous solution. Mice immunized with the S/O dispersion generated antibodies at similar titers as the mice immunized by injection, over the mid- to long-term. These results provide information for the development of transdermally administered malaria vaccines toward the eradication of malaria.

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  • TRPC3-Nox2 Protein Complex Formation Increases the Risk of SARS-CoV-2 Spike Protein-Induced Cardiomyocyte Dysfunction through ACE2 Upregulation. International journal

    Yuri Kato, Kazuhiro Nishiyama, Jae Man Lee, Yuko Ibuki, Yumiko Imai, Takamasa Noda, Noriho Kamiya, Takahiro Kusakabe, Yasunari Kanda, Motohiro Nishida

    International journal of molecular sciences   24 ( 1 )   2022.12   ISSN:1661-6596 eISSN:1422-0067

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    Myocardial damage caused by the newly emerged coronavirus (SARS-CoV-2) infection is one of the key determinants of COVID-19 severity and mortality. SARS-CoV-2 entry to host cells is initiated by binding with its receptor, angiotensin-converting enzyme (ACE) 2, and the ACE2 abundance is thought to reflect the susceptibility to infection. Here, we report that ibudilast, which we previously identified as a potent inhibitor of protein complex between transient receptor potential canonical (TRPC) 3 and NADPH oxidase (Nox) 2, attenuates the SARS-CoV-2 spike glycoprotein pseudovirus-evoked contractile and metabolic dysfunctions of neonatal rat cardiomyocytes (NRCMs). Epidemiologically reported risk factors of severe COVID-19, including cigarette sidestream smoke (CSS) and anti-cancer drug treatment, commonly upregulate ACE2 expression level, and these were suppressed by inhibiting TRPC3-Nox2 complex formation. Exposure of NRCMs to SARS-CoV-2 pseudovirus, as well as CSS and doxorubicin (Dox), induces ATP release through pannexin-1 hemi-channels, and this ATP release potentiates pseudovirus entry to NRCMs and human iPS cell-derived cardiomyocytes (hiPS-CMs). As the pseudovirus entry followed by production of reactive oxygen species was attenuated by inhibiting TRPC3-Nox2 complex in hiPS-CMs, we suggest that TRPC3-Nox2 complex formation triggered by panexin1-mediated ATP release participates in exacerbation of myocardial damage by amplifying ACE2-dependent SARS-CoV-2 entry.

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  • Highly efficient protein expression of Plasmodium vivax surface antigen, Pvs25, by silkworm and its biochemical analysis. International journal

    Takeshi Miyata, Kosuke Minamihata, Koichi Kurihara, Yui Kamizuru, Mari Gotanda, Momoka Obayashi, Taiki Kitagawa, Keita Sato, Momoko Kimura, Kosuke Oyama, Yuta Ikeda, Yukihiro Tamaki, Jae Man Lee, Kozue Sakao, Daisuke Hamanaka, Takahiro Kusakabe, Mayumi Tachibana, Hisham R Ibrahim

    Protein expression and purification   195-196   106096 - 106096   2022.8   ISSN:1046-5928 eISSN:1096-0279

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    Plasmodium vivax ookinete surface protein, Pvs25, is a candidate for a transmission-blocking vaccine (TBV) for malaria. Pvs25 has four EGF-like domains containing 22 cysteine residues forming 11 intramolecular disulfide bonds, a structural feature that makes its recombinant protein expression difficult. In this study, we report the high expression of recombinant Pvs25 as a soluble form in silkworm, Bombyx mori. The Pvs25 protein was purified from hemolymphs of larvae and pupae by affinity chromatography. In the Pvs25 expressed by silkworm, no isoforms with inappropriate disulfide bonds were found, requiring no further purification step, which is necessary in the case of Pichia pastoris-based expression systems. The Pvs25 from silkworm was confirmed to be molecularly uniform by sodium dodecyl sulfate gel electrophoresis and size-exclusion chromatography. To examine the immunogenicity, the Pvs25 from B. mori was administered to BALB/c mice subcutaneously with oil adjuvant. The Pvs25 produced by silkworm induced potent and robust immune responses, and the induced antisera correctly recognized P. vivax ookinetes in vitro, demonstrating the potency of Pvs25 from silkworm as a candidate for a malaria TBV. To the best of our knowledge, this is the first study to construct a system for mass-producing malaria TBV antigens using silkworm.

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  • Characterization of a Novel Heterochromatin Protein 1 Homolog “HP1c” in the Silkworm, Bombyx mori

    Masato Hino, Tsuneyuki Tatsuke, Akihiro Morio, Hiroaki Mon, Jae Man Lee, Akitsu Masuda, Kohei Kakino, Yoshino Tonooka, Takahiro Kusakabe

    Insects   13 ( 7 )   631 - 631   2022.7   ISSN:2075-4450 eISSN:2075-4450

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    Heterochromatin protein 1 plays an important role in chromatin structure and gene expression regulation. Three HP1 genes have been found in Homo sapiens, and five HP1 genes have been reported in Drosophila melanogaster. On the other hand, in Bombyx mori, only two HP1 genes, BmHP1a and BmHP1b, were reported. In this research, we have reported the molecular and functional characterization of a novel Bombyx mori HP1 gene (BmHP1c), which had stronger transcriptional repression activity than BmHP1a. BmHP1a and BmHP1b is reported to form homo- and heterodimers, but in co-immunoprecipitation experiments, no homo- or hetero-dimer formation of BmHP1c with the other silkworm HP1s is detected. The intracellular localization of BmHP1c is not only in the nucleus but also in the cytoplasm like mammalian HP1γ. In contrast to human HP1a and b, all three BmHP1s were localized preferentially in the regions poorly stained with DAPI. Interestingly, the double knockdown of BmHP1a and b, but not BmHP1c with a or b, arrested the cell cycle at the G2/M phase. These results suggest that BmHP1c is not essential for cell progression and plays a different role than BmHP1a and BmHP1b.

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  • Drug repurposing for the treatment of COVID-19.

    Yuri Kato, Kazuhiro Nishiyama, Akiyuki Nishimura, Takamasa Noda, Kaori Okabe, Takahiro Kusakabe, Yasunari Kanda, Motohiro Nishida

    Journal of pharmacological sciences   149 ( 3 )   108 - 114   2022.7   ISSN:1347-8613 eISSN:1347-8648

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    Coronavirus disease 2019 (COVID-19) remains prevalent worldwide since its onset was confirmed in Wuhan, China in 2019. Vaccines against the causative virus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), have shown a preventive effect against the onset and severity of COVID-19, and social and economic activities are gradually recovering. However, the presence of vaccine-resistant variants has been reported, and the development of therapeutic agents for patients with severe COVID-19 and related sequelae remains urgent. Drug repurposing, also called drug repositioning or eco-pharma, is the strategy of using previously approved and safe drugs for a therapeutic indication that is different from their original indication. The risk of severe COVID-19 and mortality increases with advancing age, cardiovascular disease, hypertension, diabetes, and cancer. We have reported three protein-protein interactions that are related to heart failure, and recently identified that one mechanism increases the risk of SARS-CoV-2 infection in mammalian cells. This review outlines the global efforts and outcomes of drug repurposing research for the treatment of severe COVID-19. It also discusses our recent finding of a new protein-protein interaction that is common to COVID-19 aggravation and heart failure.

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  • Silkworm FoxL21 plays important roles as a regulator of ovarian development in both oogenesis and ovariole development. International journal

    Miyu Tanaka, Tsuguru Fujii, Hiroaki Mon, Jae Man Lee, Kohei Kakino, Hisayoshi Fukumori, Takeru Ebihara, Takumi Nagasato, Masato Hino, Yoshino Tonooka, Takato Moriyama, Ryosuke Fujita, Yutaka Banno, Takahiro Kusakabe

    Insect biochemistry and molecular biology   143   103737 - 103737   2022.4   ISSN:0965-1748 eISSN:1879-0240

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    The ovary is an important organ in reproduction. In insects, especially lepidopteran insects, the oocytes and reproductive organs develop rapidly during the pupal stage. Despite their drastic morphological changes, the molecular mechanisms of ovary development are not fully understood. In this study, it is found that forkhead box transcription factor L2, member 1 (FoxL21), which is known to be involved in ovarian differentiation and maintenance in vertebrates, is required for the development of the ovary in the silkworm, Bombyx mori. FoxL21 was expressed in the ovary and ovariole during the larval and pupal stage, respectively. In silkworms in which FoxL21 was knocked out by genome editing, multiple ovarian dysfunctions, such as, abnormal egg formation, thinning of the ovariole sheaths, and defective connection of the oviductus geminus with the ovariole were observed. Finally, ovarian transplantation experiments using the knockout silkworms revealed that FoxL21 functions in the ovariole, but not in the oviductus geminus.

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  • Leptin Is an Important Endocrine Player That Directly Activates Gonadotropic Cells in Teleost Fish, Chub Mackerel. International journal

    Hirofumi Ohga, Kosuke Ito, Kohei Kakino, Hiroaki Mon, Takahiro Kusakabe, Jae Man Lee, Michiya Matsuyama

    Cells   10 ( 12 )   2021.12

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    Leptin, secreted by adipocytes, directly influences the onset of puberty in mammals. Our previous study showed that leptin stimulation could promote the secretion of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from pituitary cells in primary culture and ovarian development in chub mackerel. This study aimed to elucidate the detailed mechanism of leptin-induced effects on gonadotropin hormone-producing cells. We produced recombinant leptin using silkworm pupae and investigated the effects of leptin on FSH and LH secretion and gene expression in the primary culture of pituitary cells from chub mackerel. The presence or absence of co-expression of lepr mRNA, FSH and LH b-subunit mRNA in gonadotropic cells was examined by double-labeled in situ hybridization. The addition of leptin significantly increased the secretion and gene expression of FSH and LH from male and female pituitary cells in primary culture. In contrast, gonadotropin-releasing hormone 1 affected neither FSH secretion in cells from females nor fshb and lhb expression in cells from males and females. The expression of lepr was observed in FSH- and LH-producing cells of both males and females. The results indicate that leptin directly regulates gonadotropin synthesis and secretion and plays an important role in the induction of puberty in teleost fish.

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  • Non-molting dwarf (nm-d) as a mutant of Bombyx mori with a defect in purine synthesis. International journal

    Tsuguru Fujii, Kohei Kakino, Hisayoshi Fukumori, Masato Hino, Jae Man Lee, Takahiro Kusakabe, Yutaka Banno

    Insect biochemistry and molecular biology   138   103636 - 103636   2021.8

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    There are several known non-molting mutations of the silkworm, Bombyx mori, including non-molting dwarf (nm-d). Larvae with this mutation hatch normally and start eating leaves, but die before the completion of the first ecdysis. Genetic analysis of the nm-d mutation would contribute to the isolation of essential genes for the larval development of lepidopteran insects. To identify the causative gene of the nm-d locus, we conducted RNA-seq based rough mapping. Using two sets of RNA-seq data, one from a pooled sample of normal larvae, and one from a pooled sample of nm-d larvae, the nm-d locus was narrowed to a 500 kb region. Among the genes located in this region, an nm-d-specific exon loss was identified in the Bombyx homolog of the ATIC (5-aminoimidazole-4-carboxamide ribonucleotide transformylase/Inosine 5'-monophosphate cyclohydrolase) (BmATIC) gene, which catalyzes the final two steps of the de novo purine biosynthetic pathway in mammals. PCR and subsequent sequencing analysis revealed that a region containing exon 9 of the BmATIC gene is deleted in the nm-d larvae. A knockout allele of the BmATIC gene (BmATICKO), that was generated using the CRISPR/Cas9 system, revealed that first instar knockout larvae died while exhibiting the dark brown larval body that is a typical feature of mutants that lack uric acid in the integument. Lethal larvae resulted from crosses between +/BmATICKO moths. The uric acid content in the whole-body of the first instar was drastically reduced in the nm-d larvae compared to normal larvae. These results indicated that the BmATIC gene is responsible for the nm-d phenotype, and that nm-d larvae have a defect in purine biosynthesis, including uric acid. We also discuss the possibility that the BmATIC mRNA is maternally transmitted to eggs. Our results indicated that RNA-seq based mapping using pooled samples is a practical method for the identification of the causative genes of lethal mutations.

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  • Venestatin from parasitic helminths interferes with receptor for advanced glycation end products (RAGE)-mediated immune responses to promote larval migration. International journal

    Daigo Tsubokawa, Taisei Kikuchi, Jae Man Lee, Takahiro Kusakabe, Yasuhiko Yamamoto, Haruhiko Maruyama

    PLoS pathogens   17 ( 6 )   e1009649   2021.6

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    Parasitic helminths can reside in humans owing to their ability to disrupt host protective immunity. Receptor for advanced glycation end products (RAGE), which is highly expressed in host skin, mediates inflammatory responses by regulating the expression of pro-inflammatory cytokines and endothelial adhesion molecules. In this study, we evaluated the effects of venestatin, an EF-hand Ca2+-binding protein secreted by the parasitic helminth Strongyloides venezuelensis, on RAGE activity and immune responses. Our results demonstrated that venestatin bound to RAGE and downregulated the host immune response. Recombinant venestatin predominantly bound to the RAGE C1 domain in a Ca2+-dependent manner. Recombinant venestatin effectively alleviated RAGE-mediated inflammation, including footpad edema in mice, and pneumonia induced by an exogenous RAGE ligand. Infection experiments using S. venezuelensis larvae and venestatin silencing via RNA interference revealed that endogenous venestatin promoted larval migration from the skin to the lungs in a RAGE-dependent manner. Moreover, endogenous venestatin suppressed macrophage and neutrophil accumulation around larvae. Although the invasion of larvae upregulated the abundance of RAGE ligands in host skin tissues, mRNA expression levels of tumor necrosis factor-α, cyclooxygenase-2, endothelial adhesion molecules vascular cell adhesion protein-1, intracellular adhesion molecule-1, and E-selectin were suppressed by endogenous venestatin. Taken together, our results indicate that venestatin suppressed RAGE-mediated immune responses in host skin induced by helminthic infection, thereby promoting larval migration. The anti-inflammatory mechanism of venestatin may be targeted for the development of anthelminthics and immunosuppressive agents for the treatment of RAGE-mediated inflammatory diseases.

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  • Active human and murine tumor necrosis factor α cytokines produced from silkworm baculovirus expression system

    Takeru Ebihara, Jian Xu, Yoshino Tonooka, Takumi Nagasato, Kohei Kakino, Akitsu Masuda, Kosuke Minamihata, Noriho Kamiya, Hirokazu Nakatake, Yuuka Chieda, Hiroaki Mon, Tsuguru Fujii, Takahiro Kusakabe, Jae Man Lee

    Insects   12 ( 6 )   2021.6

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    The tumor necrosis factor α (TNFα) has been employed as a promising reagent in treating autoimmunity and cancer diseases. To meet the substantial requirement of TNFα proteins, we report in this study that mature types of recombinant human and murine TNFα proteins are successfully expressed in the baculovirus expression system using silkworm larvae as hosts. The biological activities of purified products were verified in culture murine L929 cells, showing better performance over a commercial Escherichia coli-derived murine TNFα. By comparing the activity of purified TNFα with or without the tag removal, it is also concluded that the overall activity of purified TNFα cytokines could be further improved by the complete removal of C-terminal fusion tags. Collectively, our current attempt demonstrates an alternative platform for supplying high-quality TNFα products with excellent activities for further pharmaceutical and clinical trials.

    DOI: 10.3390/insects12060517

  • A defect in purine nucleotide metabolism in the silkworm, Bombyx mori, causes a translucent larval integument and male infertility Invited Reviewed International journal

    Fujii, Tsuguru; Kakino, Kohei; Tanaka, Miyu; Lee, Jae Man; Kusakabe, Takahiro; Banno, Yutaka

    INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY   126   2020.11

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    DOI: 10.1016/j.ibmb.2020.103458

  • Using Eukaryotic Expression Systems to Generate Human alpha 1,3-Fucosyltransferases That Effectively Create Selectin-Binding Glycans on Stem Cells Invited Reviewed International journal

    Al-Amoodi, Asma S.; Sakashita, Kosuke; Ali, Amal J.; Zhou, Ruoyu; Lee, Jae Man; Tehseen, Muhammad; Li, Mo; Belmonte, Juan Carlos, I; Kusakabe, Takahiro; Merzaban, Jasmeen S.

    BIOCHEMISTRY   59 ( 39 )   3757 - 3771   2020.10

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    DOI: 10.1021/acs.biochem.0c00523

  • Optimal silkworm larva host for high-level production of Mus musculus IL-4 using a baculovirus expression vector system Reviewed

    Masahiko Kobayashi, Jian Xu, Kohei Kakino, Akitsu Masuda, Masato Hino, Naoki Fujimoto, Kosuke Minamihata, Noriho Kamiya, Hiroaki Mon, Hiroshi Iida, Masateru Takahashi, Takahiro Kusakabe, Jae Man Lee

    Journal of Asia-Pacific Entomology   23 ( 1 )   268 - 273   2020.4

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    Interleukine-4 (IL-4) is a cytokine that plays an important role in the immune system and recognized as a biological medicine. Therefore, there is a demand for the production of IL-4 with high performance. The expression of a recombinant IL-4 protein in the prokaryotic system usually results in the formation of an inclusion body. To date, the solution to obtain those active products without the refolding process remains to be established. In this study, we tried to acquire a biologically active recombinant Mus musculus IL-4 (rMmIL-4) using a silkworm-baculovirus expression vector system (silkworm-BEVS). We constructed two recombinant baculoviruses coding rMmIL-4 with the distinct location of affinity purification tags and succeeded in the expression and purification of rMmIL-4 proteins directly without the refolding process. Both purified proteins displayed comparable biological activity to the commercial proteins produced by the E. coli expression system. Besides, we performed screening of silkworm strains to seek optimal hosts for the mass-production of rMmIL-4. Intriguingly, we found that some silkworm strains showed significantly higher secretion levels of rMmIL-4 in silkworm sera. Our study provides meaningful insights into the industrial-scale production of rMmIL-4 with high productivity for pharmaceutical applications in the future.

    DOI: 10.1016/j.aspen.2019.12.014

  • Mild inactivation and inhibition of phenoloxidase in silkworm serum for xeno-free culture of insect cells Reviewed

    Masato Hino, Noriko Karasaki, Tsuneyuki Tatsuke, Daisuke Morokuma, Akitsu Masuda, Hiroaki Mon, Jae Man Lee, Takahiro Kusakabe

    Journal of Insect Biotechnology and Sericology   89 ( 1 )   9 - 16   2020.1

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    In insect cell culture, a fetal bovine serum is often used to maintain the cellular physiological conditions, irre-spective of its relatively high cost and unstable supply. Several serum-free media for insects were developed, but it is challenging to adopt some insect cells to these serum-free media. Silkworm serum was used as a re-placement of fetal bovine serum for a long time but not used widely due to the melanization of insect serum catalyzed by phenoloxidase (PO). PO inhibitors reported for insect serum preparation have a significantly nega-tive effect on the long-term culture of healthy insect cells. In this study, we evaluated several kinds of PO inhibi-tors and found the method to prepare silkworm serum, which is suitable for the maintenance of insect cells and the production of the recombinant proteins by the baculovirus expression system. When L-Glutathione (reduced form) or L-Cysteine is used as a PO inhibitor at the time of recovery of silkworm serum, it is possible to sup-press the browning of the silkworm serum. However, in this state of silkworm serum, browning is observed in long-term cell culture use. Therefore, it is preferable for cell culture to add 10% of silkworm serum treated at 50°C for 30 minutes to the medium with 2.7 mM L-Glutathione. Our results suggest that silkworm serum can be an alternative of mammalian serum for cell culture and used for producing the proteins for clinical application without any risk of contamination of zoonotic infectious disease viruses.

    DOI: 10.11416/jibs.89.1_009

  • Heat shock cognate 70 functions as a chaperone for the stability of kinetochore protein cenp-n in holocentric insect silkworms Reviewed

    Bingqian Li, Zhiqing Li, Chenchen Lu, Li Chang, Dongchao Zhao, Guanwang Shen, Takahiro Kusakabe, Qingyou Xia, Ping Zhao

    International journal of molecular sciences   20 ( 23 )   2019.12

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    The centromere, in which kinetochore proteins are assembled, plays an important role in the accurate congression and segregation of chromosomes during cell mitosis. Although the function of the centromere and kinetochore is conserved from monocentric to holocentric, the DNA sequences of the centromere and components of the kinetochore are varied among different species. Given the lack of core centromere protein A (CENP-A) and CENP-C in the lepidopteran silkworm Bombyx mori, which possesses holocentric chromosomes, here we investigated the role of CENP-N, another important member of the centromere protein family essential for kinetochore assembly. For the first time, cellular localization and RNA interference against CENP-N have confirmed its kinetochore function in silkworms. To gain further insights into the regulation of CENP-N in the centromere, we analyzed the affinity-purified complex of CENP-N by mass spectrometry and identified 142 interacting proteins. Among these factors, we found that the chaperone protein heat shock cognate 70 (HSC70) is able to regulate the stability of CENP-N by prohibiting ubiquitin–proteasome pathway, indicating that HSC70 could control cell cycle-regulated degradation of CENP-N at centromeres. Altogether, the present work will provide a novel clue to understand the regulatory mechanism for the kinetochore activity of CENP-N during the cell cycle.

    DOI: 10.3390/ijms20235823

  • Characterization of the RAGE-binding protein, Strongyloides venestatin, produced by the silkworm-baculovirus expression system Reviewed

    Daigo Tsubokawa, Jae Man Lee, Takeshi Hatta, Fusako Mikami, Haruhiko Maruyama, Takeshi Arakawa, Takahiro Kusakabe, Naotoshi Tsuji

    Infection, Genetics and Evolution   75   2019.11

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    The receptor for advanced glycation end products (RAGE) recognizes Ca++-binding proteins, such as members of the S100 protein family released by dead or devitalized tissues, and plays an important role in inflammatory responses. We recently identified the Ca++-binding protein, venestatin, secreted from the rodent parasitic nematode, Strongyloides venezuelensis. We herein characterized recombinant venestatin, which is abundantly produced by the silkworm-baculovirus expression system (silkworm-BES), particularly in its interaction with RAGE. Venestatin from silkworm-BES possessed a binding capacity with Ca++ ions and vaccine immunogenicity against S. venezuelensis larvae in mice, which is similar to venestatin produced by the E. coli expression system (EES). Venestatin from silkworm-BES had a higher affinity for human recombinant RAGE than that from EES, and their affinities were Ca++-dependent. RAGE in the mouse lung co-immunoprecipitated with venestatin from silkworm-BES administered intranasally, indicating that it bound endogenous mouse RAGE. The present results suggest that venestatin from silkworm-BES affects RAGE-mediated pathological processes.

    DOI: 10.1016/j.meegid.2019.103964

  • Heterologous Production and Glycosylation of Japanese Eel Follitropin Using Silkworm Reviewed

    Sun Mee Hong, Ji Hyun Choi, Sun Jung Jo, Kwan Sik Min, Dae Jung Kim, Jae Man Lee, Takahiro Kusakabe

    Biotechnology and Bioprocess Engineering   24 ( 5 )   745 - 753   2019.9

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    Follitropin, an important gonadotropin hormone, participates in vitellogenesis and spermatogenesis. Equine chorionic gonadotropin (eCG) can induce gonadotropin hormone activity in non-equid species and exhibits a long biological half-life. Here, we report the production, using silkworm larval and pupal systems, of biologically active recombinant hybrid-type follitropins based on the coding sequence of the eCG C-terminal peptide (CTP) between the mature β- and α-chains of eel. The three constructs, rJeFSH, rJeFSH·eCG, and rJeFSH·2xeCG were produced and verified to be N- or O-glycosylated and secreted mature peptides. Although rJeFSH·eCG contains more elaborate O-linked carbohydrate chains than rJeFSH, it elicited no significant in vitro oocyte maturation, which may be a result of insufficient terminal sialylation of its N-and O-linked carbohydrate chains. Then, a hybrid of rJeFSH·2xeCG extended with two eCG CTP. Furthermore, the receptor binding assay revealed potency of rJeFSH and rJeFSH·2xeCG to be a few folds greater than that of rJeFSH·eCG. The findings of this study will be useful for the development of more efficient GTHs in teleosts, including eels, when various modifications with two or more extended eCG CTP produced by silkworm are included.

    DOI: 10.1007/s12257-019-0045-2

  • Expression and Purification of Vaccinia Virus DNA Topoisomerase IB Produced in the Silkworm–Baculovirus Expression System Reviewed

    Jian Xu, Jae Man Lee, Tuneyuki Tatsuke, Takeru Ebihara, Akitsu Masuda, Masato Hino, Daisuke Morokuma, Ryosuke Fujita, Hiroaki Mon, Takahiro Kusakabe, Masateru Takahashi

    Molecular Biotechnology   61 ( 8 )   622 - 630   2019.8

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    Type IB DNA topoisomerases are enzymes to change the topological state of DNA molecules and are essential in studying replication, transcription, and recombination of nucleic acids in vitro. DNA topoisomerase IB from Vaccinia virus (vTopIB) is a 32 kDa, type I eukaryotic topoisomerase, which relaxed positively and negatively supercoiled DNAs without Mg2+ and ATP. Although vTopIB has been effectively produced in E. coli expression system, no studies remain available to explore an alternative platform to express recombinant vTopIB (rvTopIB) in a higher eukaryote, where the one can expect post-translational modifications that affect the activity of rvTopIB. Here in this study, rvTopIB with N-terminal tags was constructed and expressed in a silkworm–baculovirus expression vector system (silkworm–BEVS). We developed a simple two consecutive chromatography purification to obtain highly pure rvTopIB. The final yield of rvTopIB obtained from a baculovirus-infected silkworm larva was 83.25 μg. We also evaluated the activity and function of rvTopIB by the DNA relaxation activity assays using a negatively supercoiled pUC19 plasmid DNA as a substrate. With carefully assessing optimized conditions for the reaction buffer, we found that divalent ions, Mg2+, Mn2+, Ca2+, as well as ATP stimulate the DNA relaxation activity by rvTopIB. The functional and active form of rvTopIB, together with the yields of the protein we obtained, suggests that silkworm–BEVS would be a potential alternative platform to produce eukaryotic topoisomerases on an industrial scale.

    DOI: 10.1007/s12033-019-00184-4

  • Expression and purification of biologically active human granulocyte-macrophage colony stimulating factor (hGM-CSF) using silkworm-baculovirus expression vector system Reviewed

    Yurie Kinoshita, Jian Xu, Akitsu Masuda, Kosuke Minamihata, Noriho Kamiya, Hiroaki Mon, Ryosuke Fujita, Takahiro Kusakabe, Man Lee

    Protein Expression and Purification   159   69 - 74   2019.7

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    Human granulocyte-macrophage colony stimulating factor (hGM-CSF) is a hematopoietic growth factor. It is widely employed as a therapeutic agent targeting neutropenia in cancer patients undergoing chemotherapy and in patients with AIDS or after bone marrow transplantation. In this study, we constructed the recombinant baculoviruses for the expression of recombinant hGM-CSF (rhGM-CSF) with two small affinity tags (His-tag and Strep-tag) at the N or C-terminus. Compared to N-tagged rhGM-CSF, C-tagged rhGM-CSF was highly recovered from silkworm hemolymph. The purified rhGM-CSF proteins migrated as a diffuse band and were confirmed to hold N-glycosylations. A comparable activity was achieved when commercial hGM-CSF was tested as a control. Considering the high price of hGM-CSF in the market, our results and strategies using silkworm-baculovirus system can become a great reference for mass production of the active rhGM-CSF at a lower cost.

    DOI: 10.1016/j.pep.2019.03.010

  • Expression of the thermostable Moloney murine leukemia virus reverse transcriptase by silkworm-baculovirus expression system Reviewed

    Takumi Yano, Man Lee, Jian Xu, Yoshiki Morifuji, Akitsu Masuda, Masato Hino, Daisuke Morokuma, Ryosuke Fujita, Masateru Takahashi, Takahiro Kusakabe, Hiroaki Mon

    Journal of Asia-Pacific Entomology   22 ( 2 )   453 - 457   2019.6

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    Reverse transcriptase from Moloney murine leukemia virus (MMLVRT) is an RNA dependent DNA polymerase, which has been used as a fundamental tool for molecular biology and biotechnology. The secondary structures formed in the RNA templates decrease the accessibility of the reverse transcriptase to the RNA templates; it is important to unfold the RNA secondary structure by increasing the reaction temperature to perform the successful transcription. In this study, we applied silkworm baculovirus expression vector system (silkworm-BEVS) to mass-produce and purify the recombinant MMLVRTs with the N- or C- terminal tandem tags. We confirmed that both of the recombinant MMLVRT enzymes have intact DNA polymerase activity. It is notable that C- terminal tagged MMLVRT outperformed MMLVRT obtained from the E. coli expression system in terms of thermostability and sensitivity to low quantities of RNA template. Taken together, these results demonstrate that silkworm-BEVS is a promising alternative strategy to produce the functional and thermostable reverse transcriptase.

    DOI: 10.1016/j.aspen.2019.02.008

  • Expression, purification, and characterization of highly active endo-α-N-acetylgalactosaminidases expressed by silkworm-baculovirus expression system Reviewed

    Akihiro Morio, Jian Xu, Akitsu Masuda, Yurie Kinoshita, Masato Hino, Daisuke Morokuma, Hatsumi M. Goda, Nozomu Okino, Makoto Ito, Hiroaki Mon, Ryosuke Fujita, Takahiro Kusakabe, Man Lee

    Journal of Asia-Pacific Entomology   22 ( 2 )   404 - 408   2019.6

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    The O-glycosidase, endo-α-N-acetylgalactosaminidase from Enterococcus faecalis (endoEF) catalyzes the cleavage of core 1 and core 3 type O-linked disaccharides between GalNAc and serine or threonine residues from glycoproteins. The endoEF has broad substrate specificity and thus is extensively utilized for the structural and functional analysis of the O-linked glycans. In this study, we expressed and purified the recombinant endoEF (rEndoEF) by using the silkworm-baculovirus expression vector system (Silkworm-BEVS) and confirmed the deglycosylation activity of rEndoEF targeting reporter glycoproteins, which was equivalent to the commercial O-glycosidase. Thus, our study provides important clues to produce highly active rEndoEF O-glycosidases employing silkworm-BEVS as an alternative.

    DOI: 10.1016/j.aspen.2019.01.009

  • Functional horseradish peroxidase−streptavidin chimeric proteins prepared using a silkworm-baculovirus expression system for diagnostic purposes Reviewed

    Patmawati, Kosuke Minamihata, Tsuneyuki Tatsuke, Man Lee, Takahiro Kusakabe, Noriho Kamiya

    Journal of Biotechnology   297   28 - 31   2019.5

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    Rapid, convenient, sensitive detection methods are of the utmost importance in analytical tools. Enzyme-based signal amplification using horseradish peroxidase (HRP) is commonly implemented in clinical diagnostics kits based on enzyme-linked immunosorbent assay (ELISA), by which the limit of detection is greatly improved. Herein we report the design and preparation of recombinant fusion proteins comprising HRP and streptavidin (Stav), in which HRP was fused to either the N- or C-terminus of Stav ((HRP)
    4
    –Stav or Stav–(HRP)
    4
    , respectively) using a baculovirus-silkworm expression system. Both (HRP)
    4
    –Stav and Stav–(HRP)
    4
    were secreted in the apo form but they were easily converted to the holo form and activated by simple incubation with hemin overnight at 4 °C. The activated (HRP)
    4
    –Stav and Stav–(HRP)
    4
    could be combined with a commercial biotinylated anti-OVA IgG antibody to detect ovalbumin (OVA) as the antigen in ELISA. The enzymatic activity of (HRP)
    4
    –Stav was twofold higher than that of Stav–(HRP)
    4
    , and the sensitivity of (HRP)
    4
    -Stav in ELISA was higher than that of a commercial HRP–Stav chemical conjugate. The successful use of (HRP)
    4
    –Stav chimeric protein as a molecular probe in ELISA shows that the baculovirus-silkworm expression system is promising to produce enzyme–Stav conjugates to substitute for those prepared by chemical methods.

    DOI: 10.1016/j.jbiotec.2019.03.007

  • Identification of an insecticidal toxin produced by Enterobacter sp. strain 532 isolated from diseased Bombyx mori silkworms Reviewed

    Mai Morishita, Akitsu Masuda, Hiroaki Mon, Man Lee, Takahiro Kusakabe, Kosuke Tashiro, Chisa Yasunaga-Aoki, Kazuhiro Iiyama

    FEMS microbiology letters   366 ( 2 )   2019.1

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    Although Enterobacter sp. 532 shows pathogenicity in Bombyx mori, the insecticidal mechanisms are unclear. Here, we identified and characterised an insecticidal protein from Enterobacter. The insecticidal protein was purified from the strain and inoculated into B. mori larvae. Intracellular proteins were prepared, purified and separated by preparative native polyacrylamide gel electrophoresis (PAGE); one protein band had insecticidal activity. Sodium dodecyl sulfate-PAGE showed the presence of several bands, indicating that the insecticidal protein formed a complex. Peptide mass fingerprinting of a prominent 255.3-kDa band revealed 64 peptides that matched one protein with 33.0% sequence coverage. This protein was a homologue of the A component of the toxin complex (Tc), and the VRP1 domain was conserved; thus, the gene was named itcA (insecticidal toxin complex A). In the itcA downstream region, B and C component gene homologues were found, and these genes were located on an 86.2-kb contig sequence. Two repA genes and 27 genes related to conjugation transfer of plasmids were located on the contig, suggesting that the contig originated from a mobilisable plasmid. Therefore, these findings suggested that the strain may have acquired the Tc genes by horizontal transfer. This is the first description of Tc produced by the genus Enterobacter.

    DOI: 10.1093/femsle/fny295

  • Toxin complex is a major virulence determinant of Enterobacter sp. 532 against the silkworm, Bombyx mori Reviewed

    Mai Morishita, Hiroaki Mon, Jae Man Lee, Takahiro Kusakabe, Maximiano Corrêa Cassal, Chisa Yasunaga-Aoki, Kazuhiro Iiyama

    Journal of Insect Biotechnology and Sericology   88 ( 1 )   1_021 - 1_025   2019.1

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    DOI: 10.11416/jibs.88.1_021

  • Polymerization of Horseradish Peroxidase by a Laccase-Catalyzed Tyrosine Coupling Reaction Reviewed

    Dani Permana, Kosuke Minamihata, Tsuneyuki Tatsuke, Jae M. Lee, Takahiro Kusakabe, Masahiro Goto, Noriho Kamiya

    Biotechnology Journal   2019.1

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    The polymerization of proteins can create newly active and large bio-macromolecular assemblies that exhibit unique functionalities depending on the properties of the building block proteins and the protein units in polymers. Herein, the first enzymatic polymerization of horseradish peroxidase (HRP) is reported. Recombinant HRPs fused with a tyrosine-tag (Y-tag) through a flexible linker at the N- and/or C-termini are expressed in silkworm, Bombyx mori. Trametes sp. laccase (TL) is used to activate the tyrosine of Y-tagged HRPs with molecular O
    2
    to form a tyrosyl-free radical, which initiates the tyrosine coupling reaction between the HRP units. A covalent dityrosine linkage is also formed through a HRP-catalyzed self-crosslinking reaction in the presence of H
    2
    O
    2
    . The addition of H
    2
    O
    2
    in the self-polymerization of Y-tagged HRPs results in lower activity of the HRP polymers, whereas TL provides site-selectivity, mild reaction conditions and maintains the activity of the polymeric products. The cocrosslinking of Y-tagged HRPs and HRP-protein G (Y-HRP-pG) units catalyzed by TL shows a higher signal in enzyme-linked immunosorbent assay (ELISA) than the genetically pG-fused HRP, Y-HRP-pG, and its polymers. This new enzymatic polymerization of HRP promises to provide highly active and functionalized polymers for biomedical applications and diagnostics probes.

    DOI: 10.1002/biot.201800531

  • A functional polypeptide N-acetylgalactosaminyltransferase (PGANT) initiates O-glycosylation in cultured silkworm BmN4 cells Reviewed

    Jian Xu, Akihiro Morio, Daisuke Morokuma, Yudai Nagata, Masato Hino, Akitsu Masuda, Zhiqing Li, Hiroaki Mon, Takahiro Kusakabe, Man Lee

    Applied Microbiology and Biotechnology   102 ( 20 )   8783 - 8797   2018.10

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    Mucin-type O-glycosylation is initiated by UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferases (ppGalNAc-Ts or PGANTs), attaching GalNAc to serine or threonine residue of a protein substrate. In the insect model from Lepidoptera, silkworm (Bombyx mori), however, O-glycosylation pathway is totally unexplored and remains largely unknown. In this study, as the first report regarding protein O-glycosylation analysis in silkworms, we verified the O-glycan profile that a common core 1 Gal (β1-3) GalNAc disaccharide branch without terminally sialylated structure is mainly formed for a baculovirus-produced human proteoglycan 4 (PRG4) protein. Intriguingly, functional screenings in cultured silkworm BmN4 cells for nine Bmpgants reveal that Bmpgant2 is the solo functional BmPGANT for PRG4, implying that Bmpgants may have unique cell/tissue or protein substrate preferences. Furthermore, a recombinant BmPGANT2 protein was successfully purified from silkworm-BEVS and exhibited a high ability to transfer GalNAc for both peptide and protein substrates. Taken together, the present results clarified the functional BmPGANT2 in cultured silkworm cells, providing crucial fundamental insights for future studies dissecting the detailed silkworm O-glycosylation pathways and productions of glycoproteins with O-glycans.

    DOI: 10.1007/s00253-018-9309-6

  • Production of a biologically active human basic fibroblast growth factor using silkworm-baculovirus expression vector system Reviewed

    Akitsu Masuda, Jian Xu, Kosuke Minamihata, Genki Kagawa, Yusei Hamada, Yoshiki Morifuji, Takumi Yano, Masato Hino, Daisuke Morokuma, Noriko Karasaki, Hiroaki Mon, Noriho Kamiya, Takahiro Kusakabe, Jae Man Lee

    Journal of Asia-Pacific Entomology   21 ( 2 )   716 - 720   2018.6

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    As a therapeutic treatment, recombinant human basic fibroblast growth factor (rhbFGF) is usually employed in tissue regeneration, and as an essential component in culture medium for maintaining the induced pluripotent stem (iPS) cell and embryonic stem (ES) cell in an undifferentiated state. Therefore, a large amount of biologically active rhbFGF is required. In this study, silkworm-baculovirus expression vector system (silkworm-BEVS) is employed to achieve a high productivity of recombinant rhbFGF with two small affinity tags (His-tag and STREP-tag) at the N or C-terminus. It is observed that rhbFGF with 30 K signal peptide of silkworm were successfully expressed but are not sufficiently secreted into the culture medium of cultured insect cells. Then we purified the N- or C-tagged intracellular rhbFGF protein and obtained a yield of about 0.7 mg/larva and 1.2 mg/larva, respectively. Although the final yield of the C-tagged rhbFGF is higher than that of the N-tagged, rhbFGF with N-tag demonstrated promising and comparable biological activity, which is evaluated through a mammalian cell proliferation assay. Taken together, these results indicate that silkworm-BEVS could contribute to the mass-production of the biologically active rhbFGF for medical uses.

    DOI: 10.1016/j.aspen.2018.05.002

  • Expression and Activation of Horseradish Peroxidase–Protein A/G Fusion Protein in Silkworm Larvae for Diagnostic Purposes Reviewed

    Patmawati xxxx, Kosuke Minamihata, Tsuneyuki Tatsuke, Man Lee, Takahiro Kusakabe, Noriho Kamiya

    Biotechnology Journal   13 ( 6 )   2018.6

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    Recombinant protein production can create artificial proteins with desired functions by introducing genetic modifications to the target proteins. Horseradish peroxidase (HRP) has been used extensively as a reporter enzyme in biotechnological applications; however, recombinant production of HRP has not been very successful, hampering the utilization of HRP with genetic modifications. A fusion protein comprising an antibody binding protein and HRP will be an ideal bio-probe for high-quality HRP-based diagnostic systems. A HRP-protein A/G fusion protein (HRP-pAG) is designed and its production in silkworm (Bombyx mori) is evaluated for the first time. HRP-pAG is expressed in a soluble apo form, and is activated successfully by incubating with hemin. The activated HRP-pAG is used directly for ELISA experiments and retains its activity over 20 days at 4 °C. Moreover, HRP-pAG is modified with biotin by the microbial transglutaminase (MTG) reaction. The biotinylated HRP-pAG is conjugated with streptavidin to form a HRP-pAG multimer and the multimeric HRP-pAG produced higher signals in the ELISA system than monomeric HRP-pAG. The successful production of recombinant HRP in silkworm will contribute to creating novel HRP-based bioconjugates as well as further functionalization of HRP by applying enzymatic post-translational modifications.

    DOI: 10.1002/biot.201700624

  • Bombyx mori epidermal growth factor receptor is required for nucleopolyhedrovirus replication Reviewed

    S. Jin, T. Cheng, Y. Guo, P. Lin, P. Zhao, C. Liu, Takahiro Kusakabe, Q. Xia

    Insect Molecular Biology   2018.1

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    Baculovirus-host interactions are important models for studying the biological control of lepidopteran pests. Research on baculovirus-host interactions has focussed on baculovirus manipulation of cellular signalling pathways, including the extracellular signal-regulated kinase (ERK) and phosphatidylinositol-3-kinases/protein kinase B (PI3K/Akt) signalling pathways. However, the mechanism underlying ERK and PI3K/Akt activation and function in response to baculovirus infection remains poorly understood. Here, we demonstrated that baculovirus activated the Bombyx mori ERK and PI3K/Akt signalling pathways via the B. mori epidermal growth factor receptor (BmEGFR). To further characterize the function of the BmEGFR/ERK signalling pathway in baculovirus replication, we calculated genome-wide changes in kinase-chromatin interactions for ERK after baculovirus infection using chromatin immunoprecipitation followed by high-throughput sequencing. A Gene Ontology analysis showed that virus infection had effects on the biological regulation, cellular process and metabolic process pathways. Moreover, ERK was shown to regulate the transcription of late viral genes. Taken together, our results suggest that baculoviruses manipulate components of the host cell machinery for replication via modulation of the BmEGFR signalling pathway.

    DOI: 10.1111/imb.12386

  • Purification and characterization of immunogenic recombinant virus-like particles of porcine circovirus type 2 expressed in silkworm pupae Reviewed

    Akitsu Masuda, Man Lee, Takeshi Miyata, Tetsuo Sato, Shizuka Hayashi, Masato Hino, Daisuke Morokuma, Noriko Karasaki, Hiroaki Mon, Takahiro Kusakabe

    Journal of General Virology   99 ( 7 )   917 - 926   2018.1

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    Porcine circovirus type 2 (PCV2) is a primary causative agent of postweaningmultisystemic wasting syndrome (PMWS), which has a significant economic impact on the swine industry. The capsid protein (Cap) encoded by ORF2 of the viral genome has been used effectively as a vaccine against PCV2 infection. The Cap protein can spontaneously assemble into virus-like particles (VLPs) that are safe and highly immunogenic for vaccine applications. Several expression systems, including bacteria, yeast and insect cells, have been utilized to produce PCV2 VLPs. However, in some cases, the recombinant Cap (rCap) proteins produced in bacteria and yeast do not assemble spontaneously. In this study, we expressed rCap protein using a silkworm–baculovirus expression vector system (silkworm–BEVS) for mass production of PCV2 VLPs and established a simple three-step protocol for its purification from pupae: extraction by detergent, ammonium sulfate precipitation and anion exchange column chromatography. Size-exclusion chromatography (SEC) analysis and transmission electron microscope (TEM) observation showed that purified rCap proteins formed VLPs with a similar morphology to that of the original virus. Furthermore, the VLPs produced in silkworms were capable of inducing neutralizing antibodies against PCV2 in mice. Our results demonstrated that the silkworm system is a powerful tool for the production of PCV2 VLPs and will be useful for the development of a reliable and cost-effective PCV2 vaccine.

    DOI: 10.1099/jgv.0.001087

  • Modular surface display for porcine circovirus type 2 virus-like particles mediated by microbial transglutaminase Reviewed

    Akitsu Masuda, Kosuke Minamihata, Masato Hino, Daisuke Morokuma, Noriko Karasaki, Hiroaki Mon, Noriho Kamiya, Takahiro Kusakabe, Man Lee

    Journal of Insect Biotechnology and Sericology   87 ( 2 )   53 - 60   2018.1

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    Virus-like particles (VLPs) are multi-protein complex, which mimic viral particles without viral genomes. Recently various applications of VLPs for medical and pharmaceutical fields are developed. Furthermore, surface modification of VLPs is expected to extend their functional versatility. As an enzymatic strategy for the modification, microbial transglutaminase (MTG) that catalyzes the covalent bond between a glutamine residue and a ly-sine residue or a primary amine is suitable for efficient protein ligation. In the previous study, we demonstrated the efficient production of immunogenic VLPs of porcine circovirus type 2 (PCV2) using silkworm-baculovirus expression vector system (silkworm-BEVS). Herein, we established the display system of exotic molecules to VLPs by enzymatic covalent cross-linking using MTG. For the target modification, Q-tag (YPLQMRG) that is MTG reactive sequence were introduced into the N-terminus, C-terminus, or loop BC of capsid protein of PCV2 and successfully expressed as VLPs in silkworm pupae. Of these, PCV2 VLPs with Q-tag at the loop BC and C-terminus were efficiently conjugated with FITC-cadaverine and K-tagged (MRHKGS) EGFP by MTG. These results showed that flexible surface modification of VLPs mediated by MTG could be used for development of several therapeutic tools such as multivalent vaccines.

    DOI: 10.11416/jibs.87.2_053

  • Expression, Purification, and Characterization of Recombinant Human α 1 -Antitrypsin Produced Using Silkworm–Baculovirus Expression System Reviewed

    Yoshiki Morifuji, Jian Xu, Noriko Karasaki, Kazuhiro Iiyama, Daisuke Morokuma, Masato Hino, Akitsu Masuda, Takumi Yano, Hiroaki Mon, Takahiro Kusakabe, Man Lee

    Molecular Biotechnology   2018.1

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    Human α
    1
    -antitrypsin (AAT) is the most abundant serine proteinase inhibitor (serpin) in the human plasma. Commercially available AAT for the medications of deficiency of α
    1
    -antitrypsin is mainly purified from human plasma. There is a high demand for a stable and low-cost supply of recombinant AAT (rAAT). In this study, the baculovirus expression vector system using silkworm larvae as host was employed and a large amount of highly active AAT was recovered from the silkworm serum (~ 15 mg/10 ml) with high purity. Both the enzymatic activity and stability of purified rAAT were comparable with those of commercial product. Our results provide an alternative method for mass production of the active rAAT in pharmaceutical use.

    DOI: 10.1007/s12033-018-0127-y

  • Structure–function analyses of a stereotypic rheumatoid factor unravel the structural basis for germline-encoded antibody autoreactivity Reviewed

    Mitsunori Shiroishi, Yuji Ito, Kenta Shimokawa, Jae Man Lee, Takahiro Kusakabe, Tadashi Ueda

    Journal of Biological Chemistry   293 ( 18 )   7008 - 7016   2018.1

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    Rheumatoid factors (RFs) are autoantibodies against the fragment-crystallizable (Fc) region of IgG. In individuals with hematological diseases such as cryoglobulinemia and certain B cell lymphoma forms, the RFs derived from specific heavy- and light-chain germline pairs, so-called “stereotypic RFs,” are frequently produced in copious amounts and form immune complexes with IgG in serum. Of note, many structural details of the antigen recognition mechanisms in RFs are unclear. Here we report the crystal structure of the RF YES8c derived from the IGHV1-69/IGKV3-20 germline pair, the most common of the stereotypic RFs, in complex with human IgG1-Fc at 2.8 Å resolution. We observed that YES8c binds to the CH2–CH3 elbow in the canonical antigen-binding manner involving a large antigen–antibody interface. On the basis of this observation, combined with mutational analyses, we propose a recognition mechanism common to IGHV1-69/IGKV3-20 RFs: (1) the interaction of the Leu432–His435 region of Fc enables the highly variable complementarity-determining region (CDR)-H3 to participate in the binding, (2) the hydrophobic tip in the CDR-H2 typical of IGHV1-69 antibodies recognizes the hydrophobic patch on Fc, and (3) the interaction of the highly conserved RF light chain with Fc is important for RF activity. These features may determine the putative epitope common to the IGHV1-69/IGKV3-20 RFs. We also showed that some mutations in the binding site of RF increase the affinity to Fc, which may aggravate hematological diseases. Our findings unravel the structural basis for germline-encoded antibody autoreactivity.

    DOI: 10.1074/jbc.M117.814475

  • Gene structure and cDNA sequence of 2-Cys peroxiredoxin in the harmful algal bloom species Chattonella marina and its gene transcription under different light intensities Reviewed

    Koki Mukai, Ayano Teramoto, Xuchun Qiu, Yohei Shimasaki, Yoko Kato-Unoki, Man Lee, Naohiro Mizoguchi, Mst Ruhina Margia Khanam, Hina Satone, Tsuneyuki Tatsuke, Takahiro Kusakabe, Yuji Oshima

    European Journal of Phycology   53 ( 1 )   29 - 38   2018.1

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    We investigated the gene structure and predicted amino acid sequence of the antioxidant enzyme 2-Cys peroxiredoxin (2-Cys Prx) in the raphidophyte Chattonella marina, which is a harmful algal bloom (HAB) species. The open reading frame of 2-Cys Prx was 585 bp long and encoded a protein consisting of 195 amino acids. The putative amino acid sequence contained two cysteine residues located at the 49th and 170th amino acid positions from the N-terminal methionine residue. The sequence also possessed 2-Cys Prx characteristic motifs, F (FFYPLDFTFVCPTEI) and EVCP. The position of the 2-Cys Prx gene relative to several others (ycf59–2-CysPrx–rpl35–rpl20) was the same as that found in the chloroplast genome in the raphidophyte Heterosigma akashiwo. Upstream of the 2-Cys Prx gene, possible TATA and GGA motifs recognized by nuclear-encoded plastid RNA polymerase (NEP), and a possible -10 box and -35 box recognized by plastid-encoded plastid RNA polymerase (PEP) were observed. We measured the transcript levels of 2-Cys Prx in C. marina cells grown under three different light intensities (0, 100, 1000 µmol photons m–2 s–1, 14-h light/8-h dark photoperiod) by quantitative PCR. The 2-Cys Prx transcript level in cells grown under the highest light intensity on day 3 was threefold that on day 0 but two lower light intensities resulted in relatively stable transcription levels. The 2-Cys Prx transcript level was significantly positively related to the H2O2 concentration per cell and the H2O2 scavenging activity per cell. These results suggest that C. marina 2-Cys Prx functions in the chloroplast and its transcription could be regulated by both NEP and PEP. Moreover, the 2-Cys Prx transcript level might increase to remove excessive H2O2 produced under strong light conditions in order to maintain cell proliferation activity.

    DOI: 10.1080/09670262.2017.1346206

  • SUMOylation regulates the localization and activity of Polo-like kinase 1 during cell cycle in the silkworm, Bombyx mori Reviewed

    Zhiqing Li, Qixin Cui, Jian Xu, Daojun Cheng, Xiaoyan Wang, Bingqian Li, Man Lee, Qingyou Xia, Takahiro Kusakabe, Ping Zhao

    Scientific Reports   7 ( 1 )   2017.12

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    Polo-like kinase 1 (Plk1) is a crucial cell cycle regulator by its specific localization and activity during cell cycle. It has been shown that the phosphorylation and ubiquitylation of Plk1 are required for its own activation and localization. Here, we report that SUMOylation regulates the activity of Plk1 in the lepidopteran insect of Bombyx mori. In the absence of SUMOylation, it causes the lost localization of Plk1 on centrosomes and kinetochores, as well as an uneven distribution in midzone. We further identify that the putative SUMOylation site of Bombyx Plk1 at lysine 466 is required for its localization on centrosomes, and K466 mutation in Plk1 could influence its interaction with Smt3/Ubc9 complex. These findings are also confirmed by Drosophila Polo and human Plk1, which together reveals a conserved role of Plk1 SUMOylation in mammals. Moreover, conjugation of Smt3 to Plk1 SUMOylation mutant promotes its localization on centrosomes and kinetochores, and rescues functional defects of chromosome alignment in cells depleted of endogenous Plk1. Altogether, the present data indicate that the SUMOylation of Plk1 could participate in proper chromosome alignment and segregation during mitosis, and provides a novel layer for the regulation of Plk1 localization and activity throughout cell cycle.

    DOI: 10.1038/s41598-017-15884-7

  • Molecular characterization of mitochondrial Zucchini and its relation to nuage-piRNA pathway components in Bombyx mori ovary-derived BmN4 cells Reviewed

    Anandrao Ashok Patil, Tsuneyuki Tatsuke, Hiroaki Mon, Man Lee, Daisuke Morokuma, Masato Hino, Takahiro Kusakabe

    Biochemical and Biophysical Research Communications   493 ( 2 )   971 - 978   2017.11

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    Piwi-interacting RNAs (piRNAs) are a class of small non-coding RNAs that associate with PIWI subfamily proteins, which play an important role in transposon silencing in animal germ cell. The piRNAs biogenesis is divided into two major pathways: primary and secondary, and both pathways are independent of double-stranded RNA-processing enzyme Dicer, which processes the single-stranded RNA transcripts in microRNA (miRNA) and siRNA (small interfering RNA) pathway. Primary piRNAs are processed from long non-coding RNA precursors transcribed from piRNA clusters. Zucchini (Zuc), a mitochondrial phospholipase D (PLD) superfamily protein is conserved among the animals and involved in piRNA biogenesis. Recent studies showed that the Zucchini is an endoribonuclease essential for primary piRNA maturation and production of phased piRNA in secondary piRNA biogenesis of drosophila germ cell. Based on these reports, here we identified and studied the silkworm Zucchini (BmZuc) at subcellular level in ovary-derived BmN4 cell. The silkworm Zuc specifically expressed in germ-related tissues and localized on mitochondria and partially co-localized with perinuclear nuage-piRNA pathway components and nuage marker protein BmVasa. Molecular dissection analyses revealed that the conserved mitochondrial localization sequence, RGV motif, PLDc 2 domain and HKD motif are important for the BmZuc mitochondrial localization. Moreover, the knockdown analyses showed that the piRNA pathway components are independent on BmZuc for their nuage localization, whereas BmZuc depend on piRNA pathway components for the proper localization. Our data provides vital information on mitochondrial BmZuc and its relationship to “nuage” in ovary-derived BmN4 cell.

    DOI: 10.1016/j.bbrc.2017.09.107

  • Lipidation of BmAtg8 is required for autophagic degradation of p62 bodies containing ubiquitinated proteins in the silkworm, Bombyx mori Reviewed

    Ming Ming Ji, Man Lee, Hiroaki Mon, Kazuhiro Iiyama, Tsuneyuki Tatsuke, Daisuke Morokuma, Masato Hino, Mami Yamashita, Kazuma Hirata, Takahiro Kusakabe

    Insect Biochemistry and Molecular Biology   89   86 - 96   2017.10

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    p62/Sequestosome-1 (p62/SQSTM1, hereafter referred to as p62) is a major adaptor that allows ubiquitinated proteins to be degraded by autophagy, and Atg8 homologs are required for p62-mediated autophagic degradation, but their relationship is still not understood in Lepidopteran insects. Here it is clearly demonstrated that the silkworm homolog of mammalian p62, Bombyx mori p62 (Bmp62), forms p62 bodies depending on its Phox and Bem1p (PB1) and ubiquitin-associated (UBA) domains. These two domains are associated with Bmp62 binding to ubiquitinated proteins to form the p62 bodies, and the UBA domain is essential for the binding, but Bmp62 still self-associates without the PB1 or UBA domain. The p62 bodies in Bombyx cells are enclosed by BmAtg9-containing membranes and degraded via autophagy. It is revealed that the interaction between the Bmp62 AIM motif and BmAtg8 is critical for the autophagic degradation of the p62 bodies. Intriguingly, we further demonstrate that lipidation of BmAtg8 is required for the Bmp62-mediated complete degradation of p62 bodies by autophagy. Our results should be useful in future studies of the autophagic mechanism in Lepidopteran insects.

    DOI: 10.1016/j.ibmb.2017.08.006

  • Characterization of Armitage and Yb containing granules and their relationship to nuage in ovary-derived cultured silkworm cell Reviewed

    Anandrao Ashok Patil, Tsuneyuki Tatsuke, Hiroaki Mon, Man Lee, Daisuke Morokuma, Masato Hino, Takahiro Kusakabe

    Biochemical and Biophysical Research Communications   490 ( 2 )   134 - 140   2017.8

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    PIWI-interacting RNAs (piRNAs) are a class of endogenous small non-coding RNAs, which are mostly 24–32 nucleotides in length and interact specifically with PIWI subfamily of argonaute proteins. Despite the significant research progress in germ line piRNA pathway, its role in somatic cell is not well known. In Drosophila ovarian somatic cell, maturation of primary piRNA and its loading onto Piwi occurs at perinuclear Yb body. The Armitage (Armi) and Yb proteins are the major components of Yb body and specially expressed in ovarian somatic cell. Based on the reports, here we studied the BmArmi and BmYb in Bombyx mori ovary-derived BmN4 cells expressing BmVasa. In this study, we show that BmArmi and BmYb co-localized with BmVasa at nuage. The helicase domains of BmArmi and BmYb are important for nuage localization. Moreover, RNAi of piRNA components reveal that BmArmi depend on BmAgo3 for nuage localization, and BmArmi and BmYb form cytoplasmic granules independently in the absence of BmVasa. Our results provide evidence that the BmArmi and BmYb coexist with BmVasa and play an important role in perinuclear nuage granules formation in ovary-derived BmN4 cell.

    DOI: 10.1016/j.bbrc.2017.06.008

  • Identification and functional analysis of outer kinetochore genes in the holocentric insect Bombyx mori Reviewed

    Hiroaki Mon, Man Lee, Masanao Sato, Takahiro Kusakabe

    Insect Biochemistry and Molecular Biology   86   1 - 8   2017.7

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    The kinetochore creates chromosomal attachment sites for microtubules. The kinetochore-microtubule interface plays an important role in ensuring accurate transmission of genetic information to daughter cells. Bombyx mori is known to possess holocentric chromosomes, where spindle microtubules attach along the entire length of the chromosome. Recent evidence suggests that CENP-A and CENP-C, which are essential for centromere structure and function in other species, have lost in holocentric insects, implying that B. mori is able to build its kinetochore regardless of the lack of CENP-A and CENP-C. Here we report the identification of three outer kinetochore genes in the silkworm B. mori by using bioinformatics and RNA interference-based screening. While the homologs of Ndc80 and Mis12 have strong similarity with those of other organisms, the five encoded proteins (BmNuf2, BmSpc24, BmSpc25, BmDsn1 and BmNnf1) are highly diverged from their counterparts in other species. Microscopic studies show that the outer kinetochore protein is distributed along the entire length of the chromosomes, which is a key feature of holocentric chromosomes. We also demonstrate that BmDsn1 forms a heterotrimeric complex with BmMis12 and BmNnf1, which acts as a receptor of the Ndc80 complex. In addition, our study suggests that a small-scale RNAi-based candidate screening is a useful approach to identify genes which may be highly divergent among different species.

    DOI: 10.1016/j.ibmb.2017.04.005

  • Characterization of Recombinant Thermococcus kodakaraensis (KOD) DNA Polymerases Produced Using Silkworm-Baculovirus Expression Vector System Reviewed

    Mami Yamashita, Jian Xu, Daisuke Morokuma, Kazuma Hirata, Masato Hino, Hiroaki Mon, Masateru Takahashi, Samir M. Hamdan, Kosuke Sakashita, Kazuhiro Iiyama, Yutaka Banno, Takahiro Kusakabe, Man Lee

    Molecular Biotechnology   59 ( 6 )   221 - 233   2017.6

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    The KOD DNA polymerase from Thermococcus kodakarensis (Tkod-Pol) has been preferred for PCR due to its rapid elongation rate, extreme thermostability and outstanding fidelity. Here in this study, we utilized silkworm-baculovirus expression vector system (silkworm-BEVS) to express the recombinant Tkod-Pol (rKOD) with N-terminal (rKOD-N) or C-terminal (rKOD-C) tandem fusion tags. By using BEVS, we produced functional rKODs with satisfactory yields, about 1.1 mg/larva for rKOD-N and 0.25 mg/larva for rKOD-C, respectively. Interestingly, we found that rKOD-C shows higher thermostability at 95 °C than that of rKOD-N, while that rKOD-N is significantly unstable after exposing to long period of heat-shock. We also assessed the polymerase activity as well as the fidelity of purified rKODs under various conditions. Compared with commercially available rKOD, which is expressed in E. coli expression system, rKOD-C exhibited almost the same PCR performance as the commercial rKOD did, while rKOD-N did lower performance. Taken together, our results suggested that silkworm-BEVS can be used to express and purify efficient rKOD in a commercial way.

    DOI: 10.1007/s12033-017-0008-9

  • Expression and Characterization of Human β-1, 4-Galactosyltransferase 1 (β4GalT1) Using Silkworm–Baculovirus Expression System Reviewed

    Daisuke Morokuma, Jian Xu, Masato Hino, Hiroaki Mon, Jasmeen S. Merzaban, Masateru Takahashi, Takahiro Kusakabe, Man Lee

    Molecular Biotechnology   59 ( 4-5 )   151 - 158   2017.5

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    Baculovirus expression vector system (BEVS) is widely known as a mass-production tool to produce functional recombinant glycoproteins except that it may not be always suitable for medical practice due to the differences in the structure of N-linked glycans between insects and mammalian. Currently, various approaches have been reported to alter N-linked glycan structures of glycoproteins derived from insects into terminally sialylated complex-type N-glycans. In the light of those studies, we also proposed in vitro maturation of N-glycan with mass-produced and purified glycosyltransferases by silkworm–BEVS. β-1,4-Galactosyltransferase 1 (β4GalT1) is known as one of type II transmembrane enzymes that transfer galactose in a β-1, 4 linkage to accepter sugars, and a key enzyme for further sialylation of N-glycans. In this study, we developed a large-scale production of recombinant human β4GalT1 (rhβ4GalT1) with N- or C-terminal tags in silkworm–BEVS. We demonstrated that rhβ4GalT1 is N-glycosylated and without mucin-type glycosylation. Interestingly, we found that purified rhβ4GalT1 from silkworm serum presented higher galactosyltransferase activity than that expressed from cultured mammalian cells. We also validated the UDP-galactose transferase activity of produced rhβ4GalT1 proteins by using protein subtracts from silkworm silk gland. Taken together, rhβ4GalT1 from silkworms can become a valuable tool for producing high-quality recombinant glycoproteins with mammalian-like N-glycans.

    DOI: 10.1007/s12033-017-0003-1

  • Alkaline protease contributes to pyocyanin production in Pseudomonas aeruginosa Reviewed

    Kazuhiro Iiyama, Eigo Takahashi, Man Lee, Hiroaki Mon, Mai Morishita, Takahiro Kusakabe, Chisa Yasunaga-Aoki

    FEMS Microbiology Letters   364 ( 7 )   2017.4

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    The role of the alkaline protease (AprA) in pyocyanin production in Pseudomonas aeruginosa was investigated. AprA was overproduced when a plasmid carrying the aprA gene was introduced to an aprA-deletion mutant strain, EG03; thus, aprA-complemented EG03 was used as an overproducing strain. The complemented strain produced higher pyocyanin than the mutant strain in all commercially available media evaluated. Particularly, pyocyanin production was higher in the complemented than in the parental strain in brain-heart infusion and tryptic soy broths. These results suggested that protein degradation products by AprA were utilized for pyocyanin production. Protein-rich media were used in subsequent validation studies. Similar results were obtained when the basal medium was supplemented with casein or skim milk as the sole organic nitrogen source. However, gelatin failed to induce abundant pyocyanin production in the complemented strain, despite the presence of protein degradation products by AprA as assessed by SDS-PAGE. Thus, gelatin degradation products may not be suitable for pyocyanin synthesis. In conclusion, AprA could contribute to pyocyanin production in the presence of several proteins or peptides.

    DOI: 10.1093/femsle/fnx051

  • Expression and characterization of human β-1, 4-galactosyltransferase 1 (β4GalT1) using silkworm-baculovirus expression system Reviewed International journal

    takahiro kusakabe

    59   151 - 158   2017.1

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  • Tetrodotoxin- and tributyltin-binding abilities of recombinant pufferfish saxitoxin and tetrodotoxin binding proteins of Takifugu rubripes Reviewed

    Hina Satone, Shohei Nonaka, Man Lee, Yohei Shimasaki, Takahiro Kusakabe, Shun-Ichiro Kawabata, Yuji Oshima

    Toxicon   125   50 - 52   2017.1

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    We investigated the ability of recombinant pufferfish saxitoxin and tetrodotoxin binding protein types 1 and 2 of Takifugu rubripes (rTrub.PSTBP1 and rTrub.PSTBP2) to bind to tetrodotoxin (TTX) and tributyltin. Both rTrub.PSTBPs bound to tributyltin in an ultrafiltration binding assay but lost this ability on heat denaturation. In contrast, only rTrub.PSTBP2 bound to TTX even heat denaturation. This result suggests that the amino acid sequence of PSTBP2 may be contributed for its affinity for TTX.

    DOI: 10.1016/j.toxicon.2016.11.245

  • A reconsideration of the taxonomic position of two bacterial strains isolated from Flacherie-Diseased silkworms in 1965 Reviewed

    Kazuhiro Iiyama, Mai Morishita, Man Lee, Hiroaki Mon, Takahiro Kusakabe, Kosuke Tashiro, Taiki Akasaka, Chisa Yasunaga-Aoki, Kazuhisa Miyamoto

    Journal of Insect Biotechnology and Sericology   86 ( 2 )   35 - 41   2017.1

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    Recent advances in bacterial characterization methodologies have made taxonomic categorization significantly more accurate. Here, we re-evaluated the position of bacterial strains (532 and 652) belonging to the genus Hafnia, isolated from flacherie-diseased silkworms in 1965. Phylogenetic analysis based on the 16S rRNA gene sequences of these strains suggests that they belong to genus Enterobacter. Using multilocus sequence analysis (MLSA), these strains were further classified to MLSA group A, which is a “core” group of Enterobacter containing E. cloacae (the type species of the genus). Although these strains were closely related to E. mori, E. tabaci, and E. asburiae, they also had other MLSA characteristics that distinguished them from these neighboring bacterial species. These data were supported by further biochemical analysis. Thus, it appears that the 532 and 652 strains isolated almost half a century ago belong to genus Enterobacter, and their unique characteristics strongly suggest that they are a novel bacterial species.

    DOI: 10.11416/jibs.86.2_035

  • In vitro screening for inhibitor of cloned Drosophila melanogaster tyramine-β-hydroxylase and docking studies Invited Reviewed International journal

    takahiro kusakabe

    International Journal of Biological Macromolecules   93   889 - 895   2016.12

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  • Co-expression of silkworm allatostatin-C receptor BNGR-A1 with its cognate G protein subunits enhances the GPCR display on the budding baculovirus Invited Reviewed International journal

    takahiro kusakabe

    JOURNAL OF ASIA-PACIFIC ENTOMOLOGY   19 ( 3 )   753 - 760   2016.9

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    DOI: 10.1016/j.aspen.2016.07.007

  • Effect of antibiotics on extracellular protein level in Pseudomonas aeruginosa Reviewed International journal

    takahiro kusakabe

    Plasmid   84   44 - 50   2016.6

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  • High-level expression and purification of biologically active human IL-2 using silkworm-baculovirus expression vector system Invited Reviewed International journal

    takahiro kusakabe

    JOURNAL OF ASIA-PACIFIC ENTOMOLOGY   19 ( 2 )   313 - 317   2016.6

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    DOI: 10.1016/j.aspen.2016.03.014

  • Molecular analysis and bioactivity of luteinizing hormone from Japanese eel, Anguilla japonica, produced in silkworm pupae Invited Reviewed International journal

    takahiro kusakabe

    BIOTECHNOLOGY AND BIOPROCESS ENGINEERING   21 ( 3 )   381 - 388   2016.6

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    DOI: 10.1007/s12257-016-0042-7

  • Expression and Characterization of Recombinant Serratia liquefaciens Nucleases Produced with Baculovirus-mediated Silkworm Expression System Reviewed International journal

    takahiro kusakabe

    58 ( 6 )   393 - 403   2016.6

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    DOI: 10.1007/s12033-016-9937-y

  • Virulence of lipopolysaccharide-deficient mutants of Serratia liquefaciens toward the silkworm, Bombyx mori. Reviewed International journal

    takahiro kusakabe

    Journal of Insect Biotechnology and Sericology   85   7 - 14   2016.4

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    DOI: 10.11416/jibs.85.1_007

  • CRISPR/Cas9-mediated knockout of factors in non-homologous end joining pathway enhances gene targeting in silkworm cells Reviewed International journal

    takahiro kusakabe

    SCIENTIFIC REPORTS   5   2015.12

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    DOI: 10.1038/srep18103

  • Amyloidogenic lysozyme accumulates in the endoplasmic reticulum tangling with GRP78/BiP and evokes ER stress Reviewed International journal

    takahiro kusakabe

    PROTEIN SCIENCE   24   135 - 136   2015.10

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  • Heme precursor injection is effective for Arthromyces ramosus peroxidase fusion protein production by a silkworm expression system Reviewed International journal

    takahiro kusakabe

    JOURNAL OF BIOSCIENCE AND BIOENGINEERING   120 ( 4 )   384 - 386   2015.10

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    DOI: 10.1016/j.jbiosc.2015.02.013

  • Expression of Recombinant Viscum Album Coloratum lectin B-chain in the Silkworm Expression System and Evaluation of Antioxidant Activity Invited Reviewed International journal

    takahiro kusakabe

    BIOTECHNOLOGY AND BIOPROCESS ENGINEERING   20 ( 3 )   515 - 522   2015.6

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    DOI: 10.1007/s12257-014-0806-x

  • Amyloidogenic lysozymes accumulate in the endoplasmic reticulum accompanied by the augmentation of ER stress signals Reviewed International journal

    takahiro kusakabe

    BIOCHIMICA ET BIOPHYSICA ACTA-GENERAL SUBJECTS   1850 ( 6 )   1107 - 1119   2015.6

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    DOI: 10.1016/j.bbagen.2015.01.018

  • Characterization and evolutionary analysis of tributyltin‐binding protein and pufferfish saxitoxin and tetrodotoxin‐binding protein genes in toxic and nontoxic pufferfishes Reviewed International journal

    takahiro kusakabe

    28 ( 5 )   1103 - 1108   2015.5

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  • Two Adenine Nucleotide Translocase Paralogues Involved in Cell Proliferation and Spermatogenesis in the Silkworm Bombyx mori Reviewed International journal

    日下部 宜宏

    PLOS ONE   10 ( 3 )   2015.3

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    DOI: 10.1371/journal.pone.0119429

  • Characterization and evolutionary analysis of tributyltin-binding protein and pufferfish saxitoxin and tetrodotoxin-binding protein genes in toxic and nontoxic pufferfishes Reviewed

    Y. Hashiguchi, Man Lee, M. Shiraishi, S. Komatsu, S. Miki, Yohei Shimasaki, Noritaka Mochioka, Takahiro Kusakabe, Yuji Oshima

    Journal of Evolutionary Biology   28 ( 5 )   1103 - 1118   2015.1

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    Understanding the evolutionary mechanisms of toxin accumulation in pufferfishes has been long-standing problem in toxicology and evolutionary biology. Pufferfish saxitoxin and tetrodotoxin-binding protein (PSTBP) is involved in the transport and accumulation of tetrodotoxin and is one of the most intriguing proteins related to the toxicity of pufferfishes. PSTBPs are fusion proteins consisting of two tandem repeated tributyltin-binding protein type 2 (TBT-bp2) domains. In this study, we examined the evolutionary dynamics of TBT-bp2 and PSTBP genes to understand the evolution of toxin accumulation in pufferfishes. Database searches and/or PCR-based cDNA cloning in nine pufferfish species (6 toxic and 3 nontoxic) revealed that all species possessed one or more TBT-bp2 genes, but PSTBP genes were found only in 5 toxic species belonging to genus Takifugu. These toxic Takifugu species possessed two or three copies of PSTBP genes. Phylogenetic analysis of TBT-bp2 and PSTBP genes suggested that PSTBPs evolved in the common ancestor of Takifugu species by repeated duplications and fusions of TBT-bp2 genes. In addition, a detailed comparison of Takifugu TBT-bp2 and PSTBP gene sequences detected a signature of positive selection under the pressure of gene conversion. The complicated evolutionary dynamics of TBT-bp2 and PSTBP genes may reflect the diversity of toxicity in pufferfishes.

    DOI: 10.1111/jeb.12634

  • Characterization of Cryptopygus antarcticus Endo-beta-1,4-Glucanase from Bombyx mori Expression Systems Reviewed International journal

    日下部 宜宏

    MOLECULAR BIOTECHNOLOGY   56 ( 10 )   2014.10

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    DOI: 10.1007/s12033-014-9767-8

  • RNAi silencing of the SoxE gene suppresses cell proliferation in silkworm BmN4 cells Reviewed International journal

    日下部 宜宏

    MOLECULAR BIOLOGY REPORTS   41 ( 7 )   2014.7

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    DOI: 10.1007/s11033-014-3348-6

  • Identification of a New Sprouty Protein Responsible for the Inhibition of the Bombyx mori Nucleopolyhedrovirus Reproduction Reviewed International journal

    日下部 宜宏

    PLOS ONE   9 ( 6 )   2014.6

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    DOI: 10.1371/journal.pone.0099200

  • Characterization of KfrA proteins encoded by a plasmid of Paenibacillus popilliae ATCC 14706 T Reviewed International journal

    takahiro kusakabe

    Meta gene   4   29 - 44   2014.6

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  • Middle region of FancM interacts with Mhf and Rmi1 in silkworms, a species lacking the Fanconi anaemia (FA) core complex

    takahiro kusakabe

    INSECT MOLECULAR BIOLOGY   23 ( 2 )   2014.4

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    DOI: 10.1111/imb.12072

  • A novel third chromosomal locus controls susceptibility to Autographa californica multiple nucleopolyhedrovirus in the silkworm, Bombyx mori

    日下部 宜宏

    APPLIED MICROBIOLOGY AND BIOTECHNOLOGY   98 ( 7 )   2014.4

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    DOI: 10.1007/s00253-013-5437-1

  • Characterization and recombinant protein expression of ferritin light chain homologue in the silkworm, Bombyx mori

    takahiro kusakabe

    INSECT SCIENCE   21 ( 2 )   2014.4

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    DOI: 10.1111/1744-7917.12031

  • Establishment of Caenorhabditis elegans SID-1-Dependent DNA Delivery System in Cultured Silkworm Cells

    takahiro kusakabe

    MOLECULAR BIOTECHNOLOGY   56 ( 3 )   2014.3

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    DOI: 10.1007/s12033-013-9694-0

  • Baculovirus-mediated gene transfer systems in silkworm larvae using constitutive host promoters

    takahiro kusakabe

    JOURNAL OF ASIA-PACIFIC ENTOMOLOGY   17 ( 1 )   2014.3

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    DOI: 10.1016/j.aspen.2013.10.009

  • Roles of Piwi Proteins in Transcriptional Regulation Mediated by HP1s in Cultured Silkworm Cells

    takahiro kusakabe

    PLOS ONE   9 ( 3 )   2014.3

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    DOI: 10.1371/journal.pone.0092313

  • Chromatin-induced spindle assembly plays an important role in metaphase congression of silkworm holocentric chromosomes

    takahiro kusakabe

    INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY   45   2014.2

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    DOI: 10.1016/j.ibmb.2013.11.007

  • Establishment of a soaking RNA interference and Bombyx mori nucleopolyhedrovirus (BmNPV)-hypersensitive cell line using Bme21 cell

    takahiro kusakabe

    APPLIED MICROBIOLOGY AND BIOTECHNOLOGY   97 ( 24 )   2013.12

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    DOI: 10.1007/s00253-013-5279-x

  • Soaking RNAi in Bombyx mori BmN4-SID1 cells arrests cell cycle progression

    takahiro kusakabe

    JOURNAL OF INSECT SCIENCE   13   2013.12

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  • Characterization of Tudor-sn-containing granules in the silkworm, Bombyx mori

    takahiro kusakabe

    INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY   43 ( 8 )   2013.8

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    DOI: 10.1016/j.ibmb.2013.04.004

  • PRODUCTION OF SMALL ANTIBACTERIAL PEPTIDES USING SILKWORM-BACULOVIRUS PROTEIN EXPRESSION SYSTEM

    takahiro kusakabe

    PREPARATIVE BIOCHEMISTRY & BIOTECHNOLOGY   43 ( 6 )   2013.8

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    DOI: 10.1080/10826068.2012.762717

  • Production and characterization of the celery mismatch endonuclease CEL II using baculovirus/silkworm expression system

    takahiro kusakabe

    APPLIED MICROBIOLOGY AND BIOTECHNOLOGY   97 ( 15 )   2013.8

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    DOI: 10.1007/s00253-012-4583-1

  • phiC31-integrase-mediated, site-specific integration of transgenes in the silkworm, Bombyx mori (Lepidoptera: Bombycidae)

    takahiro kusakabe

    APPLIED ENTOMOLOGY AND ZOOLOGY   48 ( 3 )   2013.8

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    DOI: 10.1007/s13355-013-0182-6

  • RNAi suppression of beta-N-acetylglucosaminidase (BmFDL) for complex-type N-linked glycan synthesis in cultured silkworm cells

    takahiro kusakabe

    BIOTECHNOLOGY LETTERS   35 ( 7 )   2013.7

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    DOI: 10.1007/s10529-013-1183-9

  • A MC motif in silkworm Argonaute 1 is indispensible for translation repression

    takahiro kusakabe

    INSECT MOLECULAR BIOLOGY   22 ( 3 )   2013.6

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    DOI: 10.1111/imb.12023

  • AMINO ACID DEPRIVATION-INDUCED EXPRESSION OF ASPARAGINE SYNTHETASE REGULATES THE GROWTH AND SURVIVAL OF CULTURED SILKWORM CELLS

    takahiro kusakabe

    ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY   83 ( 2 )   2013.6

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    DOI: 10.1002/arch.21091

  • Characterization, Localization, and Stage-Dependent Gene Expression of Gonadotropin Receptors in Chub Mackerel (Scomber japonicus) Ovarian Follicles

    takahiro kusakabe

    BIOLOGY OF REPRODUCTION   88 ( 6 )   2013.6

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    DOI: 10.1095/biolreprod.112.107292

  • Development and characterization of a new Bombyx mori cell line for protein expression

    日下部 宜宏

    JOURNAL OF ASIA-PACIFIC ENTOMOLOGY   16 ( 1 )   2013.3

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    DOI: 10.1016/j.aspen.2012.09.004

  • Expression and characterization of a recombinant Drosophila tyramine-beta-hydroxylase in silkworm infected with recombinant baculovirus

    日下部 宜宏

    APPLIED ENTOMOLOGY AND ZOOLOGY   15 ( 4 )   2012.12

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    DOI: 10.1016/j.aspen.2012.06.004

  • Testis-specific Cell Adhesion Molecule, CEACAM6-L, Forms Homophilic Interaction at the Cell Adhesion Site in Vitro

    日下部 宜宏

    ZOOLOGICAL SCIENCE   29 ( 11 )   2012.11

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    DOI: 10.2108/zsj.29.786

  • PhiC31 integrase-mediated cassette exchange in silkworm embryos

    日下部 宜宏

    MOLECULAR GENETICS AND GENOMICS   287 ( 9 )   2012.9

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    DOI: 10.1007/s00438-012-0711-y

  • SID-1 protein of Caenorhabditis elegans mediates uptake of dsRNA into Bombyx cells. Reviewed International journal

    Kobayashi, I., Tsukioka, H., Kômoto, N., Uchino, K., Sezutsu, H., Tamura, T., Kusakabe, T., and Tomita, S.

    Insect Biochem. Mol. Biol.,   42   2012.1

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  • Improvement in pHERD vectors to express recombinant proteins tagged with hexahistidine at either the NH2- or COOH- terrminal in Pseudomonas aeruginosa. Reviewed International journal

    Iiyama, K., Lee, J., Kusakabe, T., Yasunaga-Aoki, C., and Shimizu, S.

    J. Insect Biotech. Seric.,   80   2011.10

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  • Virulence of an exotoxin A-deficient strain of Pseudomonas aeruginosa toward the silkworm, Bombyx mori. Reviewed International journal

    Chieda, Y., Iiyama, K., Lee, J., Kusakabe, T., Yasunaga-Aoki, C., and Shimizu, S.

    Microbial. Pathogenesis,   51   2011.10

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  • Aggregates with lysozyme and ovalbumin show features of amyloid-like fibrils. Reviewed International journal

    Sugimoto, Y., Kamada, Y., Tokunag, Y., Shinohara, H., Matsumoto, M., Kusakabe, T., Ohkuri, T., Ueda, T.

    Biochem. Cell Biol.,   2011.9

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  • Tributyltin-binding protein type 1, a lipocalin, prevents inhibition of osteoblastic activity by tributyltin in fish scales. Reviewed International journal

    Satone, H., Lee, J., Oba, Y., Kusakabe, T., Akahoshi, E., Miki, S., Suzuki, N., Sasayama, Y., Nassef, M., Shimasaki, Y., Kawabata, S., Honjo, T., Oshima, Y.

    Aquat. Toxicol.   103   2011.2

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  • Glucuronyltransferase activity of KfiC from Escherichia coli strain K5 requires association of KfiA: KfiC and KfiA are essential enzymes for production of K5 polysaccharide, N-acetylheparosan. Reviewed International journal

    Sugiura, N., Baba, Y., Kawaguchi, Y., Iwatani, T., Suzuki, K., Kusakabe, T., Yamagishi, K., Kimata, K., Kakuta, Y., Watanabe, H.

    J Biol Chem.   285   2010.4

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  • Insecticidal bacterium isolated from an ant lion larva from Munakata, Japan. Reviewed International journal

    Egami, I., Iiyama, K., Zhang, P., Chieda, Y., Ino, N., Hasegawa, K., Lee, J., Kusakabe, T., Yasunaga-Aoki, C., Shimizu, S.

    J. Appl. Entomol.   2009.3

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  • Inactivation of pyocyanin synthesis genes has no effect on the virulence of Pseudomonas aeruginosa PAO1 toward the silkworm, Bombyx mori. Reviewed International journal

    Chieda,Y., Iiyama,K., Lee, J., Kusakabe, T., Yasunaga-Aoki, C., Shimizu, S.

    FEMS Microbiol. Lett.   2008.3

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  • Virulence of Phospholipase C Mutants of Pseudomonas aeruginosa PAO1 against the Silkworm, Bombyx mori. Reviewed International journal

    Iiyama, K., Chieda, Y., Lee, J., Kusakabe, T., Yasunaga-Aoki, C., and Shimizu, S.

    J. Insect Biotech. Seric.   2008.3

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  • Fertility and Hatching of the vit Mutant Eggs in Bombyx mori. Reviewed International journal

    Kawaguchi, Y., Tatsuke, T., Oike, Y., Taniguchi, A., Kusakabe, T., and Lee, J., and Koga, K.

    J. Insect Biotech. Seric.   2008.3

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  • Structure and Expression Analysis of the Cecropin-E Gene from the Silkworm, Bombyx mori. Reviewed International journal

    Hong, S.M., Kusakabe, T., Lee, J., Tatsuke, T., Kawaguchi, Y., Kang, M.W., Kim, K.A., Nho, S.K.

    Biosci. Biotechnol. Biochem.   2008.3

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  • Singular compound eye architecture of the varnished eye mutation, ve, in Bombyx mori. Reviewed International journal

    Kawaguchi Y., Tatsuke T., Kusakabe T., Lee J., and Koga K.

    J. Insect Biotech. Seric.   2008.3

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  • Proteomic profiling of the silkworm skeletal muscle proteins during larval-pupal metamorphosis. Reviewed International journal

    Zhang, P., Aso, Y., Jikuya, H., Kusakabe, T., Lee, J., Kawaguchi, Y., Yamamoto, K., Banno, Y., Fujii, H.,

    J. Proteome res.   2007.7

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  • Characteristic of Se, the white-sided egg mutation in Bombyx mori. Reviewed International journal

    Kawaguchi Y., Yoshida Y., Kusakabe T., Lee J., and Koga K.

    J. Insect Biotech. Seric.   2007.6

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  • The gacA gene of Pseudomonas aeruginosa PAO1 is not required for full virulence in Bombyx mori. J. Insect Biotechnol. Sericol. Reviewed International journal

    Chieda,Y., Iiyama,K., Lee, J., Kusakabe, T., Yasunaga-Aoki, C., Lee, J., Kusakabe, T., Shimizu, S.

    J. Insect Biotech. Seric.   2007.6

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  • Effect of inactivation of the superoxide dismutase genes on the virulence of Pseudomonas aeruginosa PAO1 to silkworm, Bombyx mori. Reviewed International journal

    Iiyama,K., Chieda,Y., Lee, J., Kusakabe, T., Yasunaga-Aoki, C., Lee, J., Kusakabe, T., Shimizu, S.

    Appl. Environ. Microbiol.   2007.3

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  • Transition of ovalbumin to thermostable structure entails conformational changes involving the reactive center loop. Reviewed International journal

    Shinohara H., Horiuchi M., Sato M., Kurisaki J., Kusakabe T., Koga K., Minami Y., AokiT., Kato I., and Sugimoto Y.

    Biochim. Biophys. Acta   2007.1

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  • Micropylar structure of chorion of the female sterile mutation, bd, in, Bombyx mori. Reviewed International journal

    Kawaguchi Y., Kusakabe T., Lee J., Nakajima Y., and Koga K. (2006)

    J. Insect Biotech. Seric.   2006.3

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  • Cell Cycle Arrest induced by Radiation in Cultured Silkworm Cells Reviewed International journal

    Takahashi M., Lee J., Mon H., Kawaguchi Y., Koga K., and Kusakabe T.

    J. Insect Biotech. Seric.   2006.1

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  • Efficient nonviral gene transfer mediated by polyethylenimine in an insect cell line. Reviewed International journal

    Maeda T., Kusakabe T., Lee J., Miyagawa Y., Kawaguchi Y., Koga K.

    J. Insect Biotech. Seric.   2005.1

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  • Evidence of defect in fibroin secretion in the posterior silk gland cells of the flc mutant of Bombyx mori. Reviewed International journal

    Sakaguchi B., Kawaguchi Y., Koga K., and Kusakabe T.

    J. Insect Biotech. Seric.   2005.1

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  • Histological observation of eggs of the embryonic lethal mutation, Set, Bombyx mori. Reviewed International journal

    Kawaguchi, Y., Kawakami, K., Kusakabe, T., and Koga, K.

    J. Insect Biotech. Seric.   2004.1

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  • Overexpression in Escherichia coli and purification of recombinant CI-b1, a Kunitz-type chymotrypsin inhibitor of silkworm. Reviewed International journal

    He N., Fujii H., Kusakabe T., Aso Y., Banno Y., and Yamamoto Y.

    Protein Expr. Purif.   38 ( 1 )   9 - 16   2004.1

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    DOI: 10.1016/j.pep.2004.07.010

  • Isolation and characterization of differently expressed cDNAs in a meiotic recombination strain of Bombyx mori. Reviewed International journal

    Miyagawa Y., Kusakabe T., Lee J., Maeda T., Kawaguchi Y., and Koga K.

    J. Insect Biotech. Seric.   2004.1

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  • Morphological variation of micropylar apparatus in Bombyx mori eggs Reviewed International journal

    Kawaguchi, Y., Kusakabe, T., and Koga, K.

    J. Insect Biotech. Seric.   2002.9

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  • Occurrence of ovalbumin in ovarian yolk of chicken during oogenesis. Reviewed International journal

    Sugimoto, Y., Sanuki, S., Ibrahim, R. H., Aoki, T., Kusakabe, T., and Koga K.

    Biochim. Biophys. Acta   1526 ( 1 )   1 - 4   2001.1

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    DOI: 10.1016/S0304-4165(01)00095-2

  • Genetic analysis of the maternally conditioned "mosaic of Tanaka "mutation in Bombyx mori. Reviewed International journal

    Kawaguchi, Y., Doira, H., Kusakabe, T., and Koga, K.

    J. Insect Biotech. Seric.   2001.1

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  • Linearization and integration of DNA into cells preferentially occurs at intrinsically curvedregions from human LINE-1 repetitive element. Reviewed International journal

    Kusakabe, T., Sugimoto, Y., Maeda, T., Miyano, M., Nishikawa, J., Tone, S., Kawaguchi, Y., Koga, K., and Ohyama, T.

    Gene.   274 ( 1-2 )   271 - 281   2001.1

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    DOI: 10.1016/S0378-1119(01)00631-X

  • Molecular clonong and expression of cDNAs encording testis-specific and non-specific ATPase inhibitor-like proteins in Bombyx mori. Reviewed International journal

    Ogura, I., Kusakabe, T., Kawaguchi, Y., Maeda, T., and Koga, K.

    J. Insect Biotech. Seric.   2001.1

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  • Role of Interaction between Two Silkworm RecA Homologs in Homologous DNA Pairing. Reviewed International journal

    Kusakabe, T., Maeda, T., Kawaguchi, Y., and Koga, K.

    Arch. Biochem. Biophys.   388 ( 1 )   39 - 44   2001.1

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    DOI: 10.1006/abbi.2001.2275

  • Efficient synthesis of 13C, 15N labeled RNA containing the cap structure m7GpppA. Reviewed International journal

    Matsuo, H., Moriguchi, T., Takagi, T., Kusakabe, T., Buratowski, S., Sekine, M., Kyogoku, Y., and Wagner, G.

    J. Am.Chem.Soc.   2000.1

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  • Chorion morphology of the Eri-silkworm, Samia cynthia ricini (Donovan) (Lepidoptera:Saturniidae). Reviewed International journal

    Kawaguchi, Y., Kusakabe, T., and Koga, K.

    Appl. Entomol. Zool.   35 ( 4 )   427 - 434   2000.1

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    DOI: 10.1303/aez.2000.427

  • Characteristicof tsg, the low-temperature sensitive gray-egg mutation in Bombyx mori. J. Seric. Sci. Jpn. Reviewed

    Kawaguchi, Y., Kusakabe, T., and Koga, K.

    J. Seric. Sci. Jpn.   2000.1

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  • Isolation of replicational cue elements from a library of bent DNAs of Aspergillus oryzae. Reviewed International journal

    Kusakabe, T., Sugimoto, Y., Hirota, Y., Tone, S., Kawaguchi, Y., Koga, K., and Ohyama, T.

    Mol. Biol. Reports   27 ( 1 )   13 - 19   2000.1

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    DOI: 10.1023/A:1007076511814

  • Expression of Prophenoloxidase mRNA during silkworm hemocyte development. Reviewed International journal

    Yamamoto, T., Yakiyama, M., Fujii, H., Kusakabe, T., Koga, K., Aso, Y., and Ishiguro, M.

    Biosci. Biotechnol. Biochem.   64 ( 6 )   1197 - 1202   2000.1

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    DOI: 10.1271/bbb.64.1197

  • Ovalbumin in developing chicken eggs migrates from egg white to embryonic organs while changing its conformation and thermal stability. Reviewed International journal

    Sugimoto, Y., Sanuki, S., Ohsako, S., Higashimoto, Y., Kondo, M., Kurawaki, J., Ibrahim, R. H., Aoki, T., Kusakabe, T., and Koga K.

    J. Biol. Chem.   274 ( 16 )   11030 - 11037   1999.1

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    DOI: 10.1074/jbc.274.16.11030

  • Cys4 zinc-binding motifs in sequence-specific, single-stranded DNA recognition. Reviewed International journal

    Kusakabe, T., Hine. A., Hubert, S., Wargner, G., and Richardson, C. C.

    Proc. Natl. Aca. Sci. USA.   1999.1

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  • A PTP-like protein from baculovirus has RNA 5'-triphosphatase and diphosphatase activity. Reviewed International journal

    Takagi, T., Taylor, G. S., Kusakabe, T., Charbonneau, H., and Buratowski, S.

    Proc. Natl. Aca. Sci. USA.   1998.1

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  • Human aldolase C uses isozyme group-specific sequences 4 in exhibiting the isozyme-specific kinetic properties. Reviewed International journal

    Kusakabe, T., Motoki, K., Sugimoto, Y., and Hori, K.

    Comp. Biochem. Phys. Part B   1998.1

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  • Lamprey fructose-1, 6-bisphosphate aldolases - Characterization of the muscle-type and non-muscle-type isozymes. Reviewed International journal

    Zhang, R., Kusakabe, T., Yatsuki, H., and Hori, K.

    Arch. Biochem. Biophys.   1997.1

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  • A proteinase inhibitor from egg yolk of hen is an ovoinhibitor analog. Reviewed International journal

    Sugimoto, Y., Kusakabe, T., Nagaoka, S., Nirasawa, T., Tatsuguchi, K., Fujii, S., Aoki. T., and Koga, K.

    Biochim. Biophys. Acta   1295 ( 1 )   96 - 102   1996.1

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  • The role of zinc finger motif in DNA primase. Reviewed International journal

    Kusakabe, T., and Richardson, C. C.

    J. Biol. Chem.   1996.1

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  • A murine Thy-1.2 reporter vector containing SV40 ori for rapid cloning and analysis of eukaryotic promoters. Gene 153, 277-278 Reviewed International journal

    Kadokawa, Y., Kusakabe, T., Kamachi, Y., Isobe, K., Kondoh, H., and Ohyama, T.

    Gene   1995.1

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  • Drosophila melanogaster aldolase-Characterization of the isozymes alpha, beta and gamma generated from a single gene. Reviewed International journal

    Zhang, R., Sugimoto, Y., Kai, T., Kusakabe, T., Takasaki, Y., Koga, K., and Hori, K.

    J. Biochem.   118 ( 1 )   183 - 188   1995.1

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  • The structures of cDNAs encoding the muscle type and non muscle type isozymes of lamprey fructose bisphosphate aldolases and the evolution of aldolase gene. Reviewed International journal

    Zhang, R., Yatsuki, H., Kusakabe, T., Iwabe, N., Miyata, T., Imai, T., Yoshida, M., and Hori, K.

    J. Biochem.   1995.1

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Cloning and sequencing of cDNA coding for Cri J I, a major allergen of Japanese cedar pollen Reviewed International journal

    Sone, T., Komiyama, N., Simizu, K., Kusakabe, T., Morikubo, K., and Kino, K.

    Biochim. Biophys. Res. Commun.   1994.10

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Isolation and characterization of cDNA and genomic promoter region for a heat shock protein 30 from Aspergillus nidulans Reviewed International journal

    Kusakabe, T., Koga, K., and Sugimoto, Y.

    Biochim. Biophys. Acta   1219 ( 2 )   555 - 558   1994.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/0167-4781(94)90088-4

  • Human aldolase C: Characterization of the recombinant enzyme expressed in Escherichia coli Reviewed International journal

    Kusakabe, T., Motoki, K., and Hori, K.

    J. Biochem.   1994.6

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    Language:English   Publishing type:Research paper (scientific journal)  

  • High efficiency shotgun cloning of curved DNA segments from chromosomal DNA Reviewed International journal

    Ohyama, T., and Kusakabe, T.

    Anal. Biochem.   1993.6

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Gene structure and multiple mRNA species of Drosophila melanogaster aldolase generating three isozymes with different enzymatic properties Reviewed International journal

    Kai, T., Sugimoto, Y., Kusakabe, T., Zhang, R., Koga, K., and Hori, K.

    J. Biochem   112 ( 5 )   677 - 688   1992.11

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Interchange in the type of aldolase during embryogenesis in Bombyx mori Reviewed

    Sugimoto, Y., Nishimura, F., Kusakabe, T., Nagaoka, S., Koga, K., and Hori, K.

    J. Sericult. Sci. JPN.   1992.8

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Flow of egg white ovalbumin into the yolk sac during embryogenesis Reviewed International journal

    Sugimoto, Y., Saito, A., Kusakabe, T., Hori, K., and Koga, K.

    Biochim. Biophys. Acta   992 ( 3 )   400 - 403   1989.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/0304-4165(89)90104-9

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Presentations

  • Lipidation, delipidation and degradation of Atg8 in Bombyx cells

    季明明, 李 在萬, 門 宏明, 李志清, 徐剣, 祝力, 日下部 宜宏

    日本蚕糸学会  2016.3 

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    Event date: 2016.3

    Language:English   Presentation type:Oral presentation (general)  

    Venue:京都市   Country:Japan  

  • ヒト糖転移酵素の導入によるカイコ培養細胞のN型糖鎖修飾改変の試み

    諸熊大輔, 徐剣, 門 宏明, 李 在萬, 日下部 宜宏

    日本蚕糸学会  2016.3 

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    Event date: 2016.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都市   Country:Japan  

  • カイコ分散型動原体を構成するタンパク質の解析

    門 宏明, 李 在萬, 日下部 宜宏

    日本分子生物学会  2015.12 

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    Event date: 2015.12

    Language:Japanese   Presentation type:Symposium, workshop panel (public)  

    Venue:神戸市   Country:Japan  

  • RNA-Seq-based transcriptome analysis of p38, ERK and JNK MAPK gene suppressions in cultured Bombyx mori cells

    Jian Xu, 門 宏明, JAE MAN LEE, takahiro kusakabe

    日本分子生物学会  2015.12 

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    Event date: 2015.12

    Language:English   Presentation type:Symposium, workshop panel (public)  

    Venue:神戸   Country:Japan  

  • カイコバキュロウイルス発現系を用いたヒト糖転移酵素の大量生産

    諸熊大輔, 門 宏明, 李 在萬, 日下部 宜宏, 伴野 豊

    日本分子生物学会  2015.12 

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    Event date: 2015.12

    Language:Japanese   Presentation type:Symposium, workshop panel (public)  

    Venue:神戸市   Country:Japan  

  • カイコにおけるTORシグナル経路の解明

    平田一真, 佐藤昌直, 徐剣, 季明明, 祝力, 日野真人, 山下真実, 諸熊大輔, 門 宏明, 李 在萬, 日下部 宜宏

    日本蚕糸学会  2015.9 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:札幌市   Country:Japan  

  • カイコ培養細胞におけるBmNPV 136遺伝子のプロモーター活性

    日下部 宜宏, 李 在萬, 門 宏明, 徐剣, 山下真実, 季明明

    日本蚕糸学会  2015.9 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:札幌市   Country:Japan  

  • カイコ複製関連遺伝子の網羅的ノックダウ ン解析

    日下部 宜宏, 李 在萬, 門 宏明, 徐剣, 日野真人

    日本蚕糸学会  2015.9 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:札幌市   Country:Japan  

  • Novel kinetochore protein complex from silkworm holocentric chromosomes International conference

    門 宏明, JAE MAN LEE, takahiro kusakabe

    29th Annual Symposiumof the Protein Society  2015.7 

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    Event date: 2015.7

    Language:English   Presentation type:Symposium, workshop panel (public)  

    Venue:Barcelona   Country:Spain  

  • Characterization of silkworm replication related proteins for making an artificial chromosome International conference

    Masato Hino, 門 宏明, Li Zhu, Mami Yamashita, Kazuma Hirata, Jian Xu, Mingming Ji, Dan Zheng, Daisuke Morokuma, JAE MAN LEE, takahiro kusakabe

    The 4th Asia-Pacific Congress of Sericulture and Insect Biotechnology  2015.4 

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    Event date: 2015.4

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Busan   Country:Korea, Republic of  

  • Engineering of silkworm-baculovirus expression system for efficient production of G protein -coupled receptors International conference

    Jian Xu, Jianping Chen, Li Zhu, 門 宏明, JAE MAN LEE, takahiro kusakabe

    The 4th Asia-Pacific Congress of Sericulture and Insect Biotechnology  2015.4 

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    Event date: 2015.4

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Busan   Country:Korea, Republic of  

  • GFP-p62 degradation is an excellent marker of autophagic flux in Bombyx International conference

    Ming-Ming Ji, Jian Xu, Li Zhu, 門 宏明, JAE MAN LEE, takahiro kusakabe, Zhiqing Li

    The 4th Asia-Pacific Congress of Sericulture and Insect Biotechnology  2015.4 

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    Event date: 2015.4

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Busan   Country:Korea, Republic of  

  • Synthesis of Complex-Type N-Glycans on Recombinant Proteins by Modifying N-Glycosylation Pathway in Cultured Silkworm Cells International conference

    Daisuke Morokuma, Jian Xu, 門 宏明, JAE MAN LEE, takahiro kusakabe

    The 4th Asia-Pacific Congress of Sericulture and Insect Biotechnology  2015.4 

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    Event date: 2015.4

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Busan   Country:Korea, Republic of  

  • Establishiment of New insect Cell Lines by Using Cell Fusion Method International conference

    Kazuma Hirata, Jian Xu, 門 宏明, JAE MAN LEE, takahiro kusakabe, Masato Hino, Mami Yamashita

    The 4th Asia-Pacific Congress of Sericulture and Insect Biotechnology  2015.4 

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    Event date: 2015.4

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Busan   Country:Korea, Republic of  

  • Characterization of BmNPV Promoters for Improving Exogenous Genes Expression in Bombyx Cells International conference

    Mami Yamashita, Masato Hino, Kazuma Hirata, Jian Xu, Mingming Ji, Daisuke Morokuma, 門 宏明, JAE MAN LEE, takahiro kusakabe

    The 4th Asia-Pacific Congress of Sericulture and Insect Biotechnology  2015.4 

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    Event date: 2015.4

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Busan   Country:Korea, Republic of  

  • Expression and Purification of IL-1brelated proteins Using Silkworm Baculovirus Protein Expression System International conference

    Masato Hino, JAE MAN LEE, Mami Yamashita, Kazuma Hirata, Daisuke Morokuma, 門 宏明, takahiro kusakabe

    International Symposium on Basic and Applied Research on Sericulture and Insect Sciences  2015.4 

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    Event date: 2015.4

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Daegu   Country:Korea, Republic of  

  • Expression, purification, and characterization of streptavidin mutants using Baculovirus-mediated silkworm protein expression system International conference

    Mami Yamashita, Masato Hino, Kazuma Hirata, Jian Xu, Mingming Ji, Daisuke Morokuma, 門 宏明, JAE MAN LEE, takahiro kusakabe

    International Symposium on Basic and Applied Research on Sericulture and Insect Sciences  2015.4 

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    Event date: 2015.4

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Daegu   Country:Korea, Republic of  

  • Improvement of Caenorhabditis elegans SID-1-Dependent DNA Delivery System in Cultured Silkworm Cells International conference

    Mami Yamashita, Jian Xu, 門 宏明, JAE MAN LEE, takahiro kusakabe

    International Symposium on Basic and Applied Research on Sericulture and Insect Sciences  2015.4 

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    Event date: 2015.4

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Daegu   Country:Korea, Republic of  

  • Efficient Endo H expression by silkworm baculovirys expression system International conference

    Kazuma Hirata, Atsushi Masuda, 門 宏明, JAE MAN LEE, takahiro kusakabe

    International Symposium on Basic and Applied Research on Sericulture and Insect Sciences  2015.4 

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    Event date: 2015.4

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Daegu   Country:Korea, Republic of  

  • Expression and characterization of short-type human alpha 1 acid glycoprotein (α1AGP∆) for glycobiological research in baculovirus expression system International conference

    Daisuke Morokuma, 門 宏明, JAE MAN LEE, takahiro kusakabe, YUTAKA BANNO

    International Symposium on Basic and Applied Research on Sericulture and Insect Sciences  2015.4 

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    Event date: 2015.4

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Daegu   Country:Korea, Republic of  

  • Expression, purification, and characterization of human alpha 1 acid glycoprotein (α1AGP) for glycobiological research in baculovirus expression system International conference

    Daisuke Morokuma, 門 宏明, JAE MAN LEE, takahiro kusakabe

    International Symposium on Basic and Applied Research on Sericulture and Insect Sciences  2015.4 

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    Event date: 2015.4

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Daegu   Country:Korea, Republic of  

  • Expression and Purification of Fibroblast Growth Factors 1, 7, and 10 from Silkworm-Baculovirus Expression Vector System International conference

    Kazuma Hirata, JAE MAN LEE, Jian Xu, Masato Hino, Mami Yamashita, 門 宏明, takahiro kusakabe

    International Symposium on Basic and Applied Research on Sericulture and Insect Sciences  2015.4 

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    Event date: 2015.4

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Daegu   Country:Korea, Republic of  

  • DNA methyltransferase DNMT-1 from Bombyx mori International conference

    Masato Hino, Takumi Mitsudome, 門 宏明, Masanao Sato, Yoshitaka Suetsugu, Kimiko Yamamoto, Zhiqing Li, Jian Xu, Li Zhu, JAE MAN LEE, takahiro kusakabe

    International Symposium on Basic and Applied Research on Sericulture and Insect Sciences  2015.4 

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    Event date: 2015.4

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Daegu   Country:Korea, Republic of  

  • ヒトa1-酸性糖タンパク質(a1AGP)は昆虫細胞における糖鎖生物学研究のモデルタンパク質となる

    日下部 宜宏, 門 宏明, 李 在萬, 伴野 豊, 諸熊大輔

    日本分子生物学会  2014.11 

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    Event date: 2014.11

    Language:Japanese   Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • Role of silkworm RISC components in the basal defense against Bombyx mori nucleopolyhedrovirus (BmNPV)

    日下部 宜宏, 李 在萬, 門 宏明, 徐剣, 祝力, 李志清

    日本蚕糸学会  2014.3 

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    Event date: 2014.3

    Language:English   Presentation type:Oral presentation (general)  

    Venue:藤沢市   Country:Japan  

  • カイコ動原体を構成するタンパク質の解析

    日下部 宜宏, 李 在萬, 門 宏明

    日本蚕糸学会  2014.3 

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    Event date: 2014.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:藤沢市   Country:Japan  

  • BmDnmt1, BmDnmt2, bMBDの機能阻害細胞におけるDNAのメチル化

    日下部 宜宏, LEE JAEMAN, 門 宏明, 満留卓実, 佐藤昌直, 末次克行, 山本公子

    平成25年日本蚕糸学会本会  2013.3 

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    Event date: 2013.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:つくば   Country:Japan  

  • カイコ分散型動原体ループドメイン形成への CTCF, CP190 の関与

    日下部 宜宏, LEE JAEMAN, 門 宏明, 益田篤, 佐藤昌直, 末次克行, 山本公子

    平成25年日本蚕糸学会本会  2013.3 

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    Event date: 2013.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:つくば   Country:Japan  

  • The role of SUMOylation signaling in cell cycle progression in silkworm

    日下部 宜宏, LEE JAEMAN, 門 宏明, 李志清

    昆虫ポストゲノム研究会2013 in 久米島  2013.10 

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    Event date: 2013.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:沖縄   Country:Japan  

  • カイコバキュロウイルス発現系を 用いたヒトインターロイキン7(IL-7)の生産

    日下部 宜宏, LEE JAEMAN, 門 宏明, 諸熊大輔

    昆虫ポストゲノム研究会2013 in 久米島  2013.10 

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    Event date: 2013.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:沖縄   Country:Japan  

  • BmDnmt1、BmDnmt2機能阻害細胞におけるBisulfite-sequencing法 を用いたDNAメチル化の解析

    日下部 宜宏, LEE JAEMAN, 門 宏明, 満留卓実

    昆虫ポストゲノム研究会2013 in 久米島  2013.10 

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    Event date: 2013.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:沖縄   Country:Japan  

  • インシュレータータンパク質CTCF, CP190のノックダウンとRNA-seq

    日下部 宜宏, LEE JAEMAN, 門 宏明, 益田篤

    昆虫ポストゲノム研究会2013 in 久米島  2013.10 

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    Event date: 2013.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:沖縄   Country:Japan  

  • EBNA1/oriPシステムを利 用したカイコ培養細胞におけるエピソームベクターの作成

    日下部 宜宏, LEE JAEMAN, 門 宏明, 吉村開人

    昆虫ポストゲノム研究会2013 in 久米島  2013.10 

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    Event date: 2013.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:沖縄   Country:Japan  

  • Soaking RNAi and its application on insect sciences Invited International conference

    日下部 宜宏, LEE JAEMAN, 門 宏明, Xu Jian

    平成25年韓国蚕糸学会本会  2013.5 

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    Event date: 2013.5

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:平昌郡   Country:Korea, Republic of  

  • Molecular cloning and characterization of asparagine synthetase in the silkworm, Bombyx mori

    Zhiqing Li・Hiroaki Mon・Jae Man Lee・Takahiro Kusakabe

    平成24年蚕糸学会本会  2012.3 

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    Event date: 2012.3

    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • カイコ培養細胞における N-グリコシル化経路の改変とタンパク質発現系への応用

    永田祐大・副嶋泰彦・門 宏明・李 在萬・日下部宜宏

    平成24年蚕糸学会本会  2012.3 

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    Event date: 2012.3

    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • カイコ BES によるヒト DEFB1, 2, 3 と LL37 の発現と DEFB2 が菌の生存率に与える影響

    福島 舞・飯山和弘・李 在萬・山下 隼・古江増隆・辻 学・日下部宜宏

    平成24年蚕糸学会本会  2012.3 

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    Event date: 2012.3

    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • BES におけるタンパク質分泌量への小胞体シャペロンの関与

    工藤遼亮・日下部宜宏・李 在萬・門 宏明

    平成24年蚕糸学会本会  2012.3 

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    Event date: 2012.3

    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • カイコ培養細胞における糖鎖修飾部位改変組換え分泌タンパク質の生産

    副嶋泰彦・李 在萬・日下部宜宏

    平成24年蚕糸学会本会  2012.3 

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    Event date: 2012.3

    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • Positional cloning and functional analysis of candidate genes responsible for AcNPV sensitivity in silkworm, Bombyx mori

    Jian Xu・Kimito Yamamoto・Hiroaki Mon・Jae Man Lee・Takahiro Kusakabe

    平成24年蚕糸学会本会  2012.3 

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    Event date: 2012.3

    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • カイコにおける DNA 二重鎖切断関連因子の解析

    藤井美江・門 宏明・高橋将晃・光延 仁・李 在萬・日下部宜宏

    平成24年蚕糸学会本会  2012.3 

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    Event date: 2012.3

    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • 点変異導入によるカイコヒストン H3-K4, K9, K27, S10 修飾の機能解析

    吉村開人・田附常幸・門 宏明・李 志清・李 在萬・日下部宜宏

    平成24年蚕糸学会本会  2012.3 

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    Event date: 2012.3

    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • BmTudor-sn interact with BmAgo1 and BmAgo2 not to be involved in RNAi pathway, while to participate in stress granule formation in BmN4 cells

    Li Zhu・Tuneyuki Tatsuke・Hiroaki Mon・Jae Man Lee・Takahiro Kusakabe

    平成24年蚕糸学会本会  2012.3 

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    Event date: 2012.3

    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • カイコにおける RNAi 経路の解析

    吉末真吾・田附常幸・阪下浩介・門 宏明・李 在萬・日下部宜宏

    平成24年蚕糸学会本会  2012.3 

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    Event date: 2012.3

    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • カイコ分散型動原体染色体におけるクロマチンループ形成とその役割

    日下部 宜宏, LEE JAEMAN, 門 宏明, 益田篤, 徐剣

    平成24年第35回日本分子生物学会本会  2012.12 

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    Event date: 2011.12

    Language:Japanese   Presentation type:Symposium, workshop panel (public)  

    Venue:福岡   Country:Japan  

  • カイコにおけるDNAメチル化因子の機能解析

    日下部 宜宏, LEE JAEMAN, 門 宏明, 満留卓実, 徐剣

    平成24年第35回日本分子生物学会本会  2012.12 

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    Event date: 2011.12

    Language:Japanese   Presentation type:Symposium, workshop panel (public)  

    Venue:福岡   Country:Japan  

  • カイコにおけるテトラサイクリン誘導型遺伝子発現システムの改良/Improvement of tetracycline-inducible gene expression systems in the silkworm, Bombyx mori

    田附常幸・藤井美江・永田祐大・福島舞・李在萬・日下部宜宏

    平成23年第34回日本分子生物学会本会  2011.12 

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    Event date: 2011.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:神戸   Country:Japan  

  • カイコ培養細胞におけるDNA二重鎖切断修復経路の解析/Analysis of DNA double-strand break repair pathways in silkworm cells

    藤井美江、門宏明、高橋将晃、光延仁志、李在萬、日下部宜宏

    平成23年第34回日本分子生物学会本会  2011.12 

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    Event date: 2011.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:神戸   Country:Japan  

  • カイコ BES を用いたヒト抗菌タンパク質の生産と活性評価/Production of human antimicrobial peptides using baculovirus expression system and evaluation of its activity

    福島舞・飯山和弘・李在萬・山下隼・古江増隆・辻学・日下部宜宏

    平成23年第34回日本分子生物学会本会  2011.12 

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    Event date: 2011.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:神戸   Country:Japan  

  • カイコ β-N-acetylglucosaminidase (BmFDL) のノックダウンが N- グリカン形成に与える影響/Effect of RNAi for BmFDL in the N-glycosylation pathway

    永田祐大・副嶋泰彦・門宏明・李在萬・日下部宜宏

    平成23年第34回日本分子生物学会本会  2011.12 

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    Event date: 2011.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:神戸   Country:Japan  

  • バキュロウイルス発現系における小胞体シャペロンの関与/Roles of the endoplasmic reticulam chaperones in recombinant protein secretion in BES

    工藤遼亮・門宏明・李在萬・日下部宜宏

    平成23年第34回日本分子生物学会本会  2011.12 

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    Event date: 2011.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:神戸   Country:Japan  

  • Analysis of P-bodies and stress granules in silkworm BmN4 cells

    祝力・田附常幸・李志清・門宏明・李在萬・日下部宜宏

    平成23年第34回日本分子生物学会本会  2011.12 

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    Event date: 2011.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:神戸   Country:Japan  

  • カイコXBP1 は小胞体ストレス応答下で小胞体シャペロンを制御する

    日下部 宜宏, LEE JAEMAN, 門 宏明, 今井咲

    平成25年第36回日本分子生物学会本会  2013.12 

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    Event date: 2011.12

    Language:Japanese   Presentation type:Symposium, workshop panel (public)  

    Venue:神戸   Country:Japan  

  • カイコ動原体タンパク質の解析

    門宏明・李在萬・日下部宜宏

    平成23年蚕糸学会本会  2011.3 

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    Event date: 2011.3

    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • 糖鎖構造の改変によるカイコーバキュロウイルス発現系への応用

    永田祐大・副嶋泰彦・門宏明・李在萬・日下部宜宏

    平成23年蚕糸学会本会  2011.3 

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    Event date: 2011.3

    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • カイコ熱ショックファクターBmHsf1, BmHsf1lpの転写活性化機構に関する研究

    山下隼・福島舞・李在萬・日下部宜宏

    平成23年蚕糸学会本会  2011.3 

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    Event date: 2011.3

    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • カイコにおけるフアンコニ経路因子FancMの機能解析

    菅原亮平・門宏明・李在萬・日下部宜宏

    平成23年蚕糸学会本会  2011.3 

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    Event date: 2011.3

    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • Molecular characterization of the Fanconi anemia protein FancM in silkworm, Bombyx mori

    Ryohei Sugahara, Hiroaki Mon, Jae Man Lee, and Takahiro Kusakabe

    平成22年日本分子生物学会本会  2010.12 

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    Event date: 2010.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:神戸   Country:Japan  

  • BESにおけるタンパク質分泌量への小胞体シャペロンの関与/Participation of the endoplasmic reticula chaperons in regulation of protein secretion in BES

    Ryosuke Kudo,Jun Yamashita,Hiroaki Mon,Jae Man Lee and Takahiro Kusakabe

    平成22年日本分子生物学会本会  2010.12 

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    Event date: 2010.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:神戸   Country:Japan  

  • カイコ Dicer-2 のクローニングと機能解析/Molecular cloning and function analysis of silkworm Dicer-2 homolog gene

    吉末 真吾,田附 常幸,正木 夕輝,阪下 浩介,李 在萬,日下部 宜宏

    平成22年日本分子生物学会本会  2010.12 

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    Event date: 2010.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:神戸   Country:Japan  

  • Silkworm Argonaute2 homolog is involved in exso-siRNA and endo-siRNA pathway

    Yuki Masaki, Tsuneyuki Tatsuke, Kosuke Sakashita, Shingo Yoshizue, JaeMan Lee, and Takahiro Kusakabe

    平成22年日本分子生物学会本会  2010.12 

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    Event date: 2010.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:神戸   Country:Japan  

  • Identification and Expression Pattern Analysis of Polycomb Group Genes in the Silkworm, Bombyx mori

    Zhiqing Li, Tsuneyuki Tatsuke, Hiroaki Mon, JaeMan Lee, and Takahiro Kusakabe

    平成22年日本分子生物学会本会  2010.12 

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    Event date: 2010.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:神戸   Country:Japan  

  • カイコ Piwi タンパク質による転写抑制効果の解析/Analysis of transcriptional repression by silkworm Piwi proteins

    田附常幸、正木夕輝、吉末真吾、光延仁志、阪下浩介、李在萬、日下部宜宏

    平成22年日本分子生物学会本会  2010.12 

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    Event date: 2010.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:神戸   Country:Japan  

  • Chromatin structure and function of silkworm holocentric chromosomes Invited International conference

    Takahiro Kusakabe, Hiroaki Mon

    New Silk Road: Silkworm Genome to Sustainable Agriculture  2010.11 

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    Event date: 2010.11

    Presentation type:Oral presentation (general)  

    Venue:tsukuba   Country:Japan  

  • Efficient Protein Expression in Bombyx mori Larvae of the Strains Highly Sensitive to B. mori Nucleopolyhedrovirus. Invited International conference

    Takahiro Kusakabe, JaeMan Lee

    The bioprocessing summit 2010: Baculovirus Technology (Boston, USA)  2010.8 

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    Event date: 2010.8

    Presentation type:Oral presentation (general)  

    Venue:boston   Country:United States  

  • カイコにおけるDNA損傷修復機構ファンコニ経路の解析

    管原亮平・門宏明・李在萬・河口豊・日下部宜宏

    平成22年蚕糸学会本会  2010.4 

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    Event date: 2010.4

    Presentation type:Oral presentation (general)  

    Venue:長野   Country:Japan  

  • カイコ培養細胞 BmN4 における Piwi サブファミリータンパク質の転写抑制への関与

    田附常幸・光延仁志・正木夕輝・阪下浩介・吉末真吾・李在萬・河口豊・日下部宜宏

    平成22年蚕糸学会本会  2010.4 

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    Event date: 2010.4

    Presentation type:Oral presentation (general)  

    Venue:長野   Country:Japan  

  • カイコゲノムのintegrity -侵入核酸との戦い- Invited

    日下部宜宏・門宏明・光延仁志・泉麻紀子・島田快

    ウイルスベクターとトランスポゾンがもたらすゲノム・イノベーションと生物進化のパラダイムシフト  2010.3 

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    Event date: 2010.3

    Presentation type:Oral presentation (general)  

    Venue:沖縄   Country:Japan  

  • Functional analysis of BmHsp90 cochaperones for hormone receptors in the silkworm.

    Jun Yamashita, Hiroaki Mon, Hitoshi Mitsunobu, Shun Sawatsubashi, Shigeaki Kato, Jae Man Lee, Yutaka Kawaguchi, Takahiro Kusakabe

    平成21年日本分子生物学会本会  2009.12 

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    Event date: 2009.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • Characterization of Light Chain Homologue Ferritin and the Efficient Production on Silkworm Expressing Cytoplasmic Chaperones

    SunMee Hong, Hitoshi Mitsunobu, Jun Yamashita, Hideki Sezutsu, Toshiki Tamura, Hiroaki Mon, JaeMan Lee , Yutaka Kawaguchi , Takahiro Kusakabe

    平成21年日本分子生物学会本会  2009.12 

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    Event date: 2009.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • The analysis of mechanism of the factors involved in RNAi in silkworm

    Yuki Masaki, Tsuneyuki Tatsuke, Kosuke Sakashita, Shingo Yoshizue, JaeMan Lee, Yutaka Kawaguchi, Takahiro Kusakabe

    平成21年日本分子生物学会本会  2009.12 

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    Event date: 2009.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • Interaction between Tip60 and Histones in Bombyx mori

    Kiyoko Miyata, Hitoshi Mitsunobu, Hiroaki Mon, JaeMan Lee, Yutaka Kawaguchi, Takahiro Kusakabe

    平成21年日本分子生物学会本会  2009.12 

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    Event date: 2009.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • Cloning and characterization of p53 homolog in silkworm, Bombyx mori

    Kokoro Shimada, Masateru Takahashi, Yoshiyuki Miyagawa, Kazuei Mita, Tsuneyuki Tatsuke, JaeMan Lee, Takahiro Kusakabe, Yutaka Kawaguchi

    平成21年日本分子生物学会本会  2009.12 

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    Event date: 2009.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • Analysis of DNA interstrand crosslink repair in silkworm, Bombyx mori

    Shinji Ohkubo, Ryohei Sugahara, Hiroaki Mon, Masateru Takahashi, Tsuneyuki Tatsuke, Yosuke Taniguchi, Shigeki Sasaki, Jaeman Lee, Yutaka Kawaguchi and Takahiro Kusakabe

    平成21年日本分子生物学会本会  2009.12 

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    Event date: 2009.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • Analysis of Post-translational modifications of histones in Bombyx mori

    Makiko Izumi , Hitoshi Mitsunobu , Hiroaki Mon , Kazuhiro Iiyama , Hiroyuki Jikuya, JaeMan Lee , Yutaka Kawaguchi , Takahiro Kusakabe

    平成21年日本分子生物学会本会  2009.12 

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    Event date: 2009.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • Analysis of the interactions between BRCA2 and RAD51 in silkworm, Bombyx mori

    Hiroaki Mon, Ryohei Sugahara, Jaeman Lee, Yutaka Kawaguchi and Takahiro Kusakabe

    平成21年日本分子生物学会本会  2009.12 

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    Event date: 2009.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • Cytotoxic action of lysozyme amyloid fibrils

    Yasushi Sugimoto, Reina Kido, Yukako Sakakibara, Takatoshi Ohkuri, Tadashi Ueda, Takahiro Kusakabe

    平成21年日本分子生物学会本会  2009.12 

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    Event date: 2009.12

    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • Proteomic Analysis of Silkworm Chromatin Invited International conference

    Takahiro Kusakabe, Hiroaki Mon, Hitoshi Mitsunobu,Makiko Izumi, Kokoro Shimada

    The International Symposium on Bombyx mori Functional Genomics and Modern Silk Road  2009.10 

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    Event date: 2009.10

    Presentation type:Symposium, workshop panel (public)  

    Venue:Chongching   Country:China  

  • カイコクロマチンタンパク質の解析

    日下部宜宏

    昆虫ポストゲノム研究会2009  2009.9 

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    Event date: 2009.9

    Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:札幌   Country:Japan  

  • カイコ遺伝資源と昆虫タンパク質工場 Invited

    日下部宜宏

    平成21年日本生物工学会シンポジウム  2009.9 

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    Event date: 2009.9

    Presentation type:Symposium, workshop panel (public)  

    Venue:名古屋   Country:Japan  

  • カイコp53ホモログの探索

    島田 快・高橋将晃・田附常幸・日下部宜宏・河口 豊

    昆虫ワークショップ2009  2009.9 

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    Event date: 2009.9

    Presentation type:Symposium, workshop panel (public)  

    Venue:福岡   Country:Japan  

  • カイコp53ホモログの探索

    島田 快・高橋将晃・田附常幸・日下部宜宏・河口 豊

    昆虫ワークショップ2009  2009.9 

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    Event date: 2009.9

    Presentation type:Symposium, workshop panel (public)  

    Venue:福岡   Country:Japan  

  • カイコ RNAi 関連因子の機能解析

    正木夕輝・田附常幸・李 在萬・日下部宜宏・河口 豊

    昆虫ワークショップ2009  2009.9 

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    Event date: 2009.9

    Presentation type:Symposium, workshop panel (public)  

    Venue:福岡   Country:Japan  

  • カイコにおけるDNA鎖間架橋修復の解析

    大久保慎司・管原亮平・門 宏明・高橋将晃・李 在萬・日下部宜宏・河口 豊

    昆虫ワークショップ2009  2009.9 

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    Event date: 2009.9

    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • カイコにおける相同組換え関連遺伝子の機能解析

    門 宏明・李 在萬・日下部宜宏・河口 豊

    昆虫ワークショップ2009  2009.9 

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    Event date: 2009.9

    Presentation type:Symposium, workshop panel (public)  

    Venue:福岡   Country:Japan  

  • カイコ培養細胞における Piwi タンパク質の局在とトランスポゾンの発現抑制

    田附常幸

    昆虫ポストゲノム研究会2009札幌  2009.9 

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    Event date: 2009.9

    Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:札幌   Country:Japan  

  • カイコ突然変異系統を宿主に用いたタンパク質生産技術 Invited

    日下部宜宏

    平成21年日本農芸化学会Frontiersシンポジウム  2009.3 

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    Event date: 2009.3

    Presentation type:Symposium, workshop panel (public)  

    Venue:福岡   Country:Japan  

  • The interaction of BmHsp90 cochaperones with mammalian MAPKs and insect hormone receptors.

    山下 隼・門 宏明・宮川世志幸・光延仁志・李 在萬・河口 豊・日下部宜宏

    平成21年蚕糸学会本会  2009.3 

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    Event date: 2009.3

    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • BmNPV高感受性カイコを用いた交配系統による効果的タンパク発現の試み(2)

    李 在萬・久保雄二・大畑 敬一・伴野 豊・河口 豊・日下部 宜宏

    平成21年蚕糸学会本会  2009.3 

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    Event date: 2009.3

    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • カイコにおけるファンコニ経路因子FancI, D2複合体の解析

    管原亮平・門宏明・大久保慎司・谷口陽祐・佐々木茂貴・李在萬・河口豊・日下部宜宏

    平成21年蚕糸学会本会  2009.3 

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    Event date: 2009.3

    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • カイコヒストンの翻訳後修飾の解析

    泉麻紀子・光延仁志・門宏明・飯山和弘・軸屋博之・河口豊・日下部宜宏

    平成21年蚕糸学会本会  2009.3 

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    Event date: 2009.3

    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • カイコにおけるヘテロクロマチン誘導による転写抑制

    光延仁志・竹野奈津美・門 宏明・李 在萬・小林 功・田村俊樹・小倉絵里・蒲池雄介・日下部宜宏・河口 豊

    平成21年蚕糸学会本会  2009.3 

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    Event date: 2009.3

    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • Efficient protein expression in the Bombyx mori strains highly sensitive to B. mori nucleopolyhedrovirus. International conference

    Yuji Kubo, Jae Man Lee, Yutaka Kawaguchi and Takahiro Kusakabe

    Asia-Pacific Congress of Sericulture and Insect Biotechnology  2008.3 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:nagoya   Country:Japan  

  • Efficient Production of Recombinant Protein in HSPs (Heat Shock Porteins) Transgenic Silkworm

    Sun-Mee Hong, Jae-Man Lee, Yutaka Kawaguchi, Keiro Uchino, Toshiki Tamura, Yusuke Kamachi, Eri Ogura, and Takahiro Kusakabe

    日本分子生物学会  2008.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • カイコにおけるHP1による転写抑制機構の解析

    光延仁志・門 宏明・竹野奈津美・李 在萬・小林 功・田村俊樹・小倉絵里・蒲池雄介・日下部宜宏・河口

    日本分子生物学会  2008.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • カイコシャペロン過剰発現のもたらすターゲットタンパク質

    山下 隼・宮川世志幸・門 宏明・光延仁志・久保雄二・李 在萬・河口 豊・日下部宜宏

    日本分子生物学会  2008.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • BmNPVカイコバキュロウイルス発現系に対する高産生能カイコ系統をもちいた有用タンパク質の発現2

    久保雄二・李 在萬・白井伸太朗・河口 豊・日下部宜

    日本分子生物学会  2008.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • カイコのヒストンメチル化酵素Su(var)3-9の機能解析II

    竹野奈津美・門 宏明・光延仁志・李 在萬・内野恵郎・田村俊樹・河口 豊・日下部宜宏

    日本分子生物学会  2008.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • カイコにおけるファンコニ経路関連遺伝子FANCJの機能解析

    大久保慎司・管原亮平・門宏明・光延仁志・小林功・田村俊樹・蒲池雄介・李在萬・河口豊・日下部宜宏

    日本分子生物学会  2008.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • HDAC阻害剤(TSA)のカイコクロマチン構造に与える影響

    宮田京世子・門宏明・李在萬・河口豊・日下部宜宏

    日本分子生物学会  2008.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • カイコ Piwi サブファミリーとエピジェネティクス関連因子の相互作用解析

    田附常幸・阪下浩介・光延仁志・正木夕輝・李在萬・河口豊・日下部宜宏

    日本分子生物学会  2008.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • カイコ培養細胞における制限酵素EcoRI導入によるアポトーシスの誘導

    島田快・高橋将晃・光延仁志・田附常幸・李在萬・日下部宜宏・河口豊

    日本分子生物学会  2008.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • 高効率的組換えタンパク質発現用宿主としてのカイコ系統の開発(3)

    李在萬・張平波・日下部宜宏・伴野豊・河口

    蚕糸学会本会  2008.3 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • カイコにおけるHP1aによる遺伝子サイレンシング

    光延仁志・門 宏明・李 在萬・小林 功・田村俊樹・小倉絵里・蒲池雄介・河口 豊・日下部宜宏

    蚕糸学会本会  2008.3 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • カイコ培養細胞におけるタンパク質間相互作用検出系の作出

    門 宏明・菅原亮平・李 在萬・小林 功・田村俊樹・小倉絵里・蒲池雄介・日下部宜宏・河口 豊

    蚕糸学会本会  2008.3 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • The Fanconi anemia pathway in silkworm cells International conference

    Ryohei Sugahara, Hiroaki Mon, Shinji Ohkubo, Yosuke Taniguchi, Shigeki Sasaki, Jae Man Lee, Yutaka Kawaguchi, and Takahiro Kusakabe

    3R (Replication, Recombination, Repair) Symposium (2008)  2008.10 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:(Kakegawa, Japan)   Country:Japan  

  • Analysis of the interactions between BRCA2 and RAD51 in silkworm, Bombyx mori International conference

    Hiroaki Mon, Ryohei Sugahara, JaeMan Lee, Yutaka Kawaguchi, Takahiro Kusakabe

    3R (Replication, Recombination, Repair) Symposium (2008)  2008.10 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:(Kakegawa, Japan)   Country:Japan  

  • Expression and subcellular localization of the silkworm Piwi subfamily genes, AGO3 and SIWI. International conference

    Tsuneyuki Tatsuke, Kosuke Sakashita, JaeMan Lee, Yutaka Kawaguchi, Takahiro Kusakabe

    Asia-Pacific Congress of Sericulture and Insect Biotechnology  2008.3 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:nagoya   Country:Japan  

  • Characterization of Su(var)3-9 H3K9 methyltransferase activity in Bombyx mori. International conference

    Natsumi Takeno, Hitoshi Mitsunobu, Hiroaki Mon, Ryouhei Sugahara, Jae Man Lee, Yutaka Kawaguchi, Takahiro Kusakabe

    Asia-Pacific Congress of Sericulture and Insect Biotechnology  2008.3 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:nagoya   Country:Japan  

  • カイコ胚におけるphiC31 integraseの活性

    米村真之・内野恵郎・小林功・立松謙一郎・瀬筒秀樹・飯塚哲也・田村俊樹・M. Muthulakshmi・日下部宜宏

    平成23年蚕糸学会本会  2011.3 

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    Event date: 2011.3

    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • カイコribonuclease L inhibitor (RLI) ホモログのキャラクタリゼーション

    前田拓志、日下部宜宏、阪下浩介、河口豊、古賀克己

    日本蚕糸学会本会  2002.4 

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    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • カイコMre11、Rad50タンパク質の機能解析

    高橋将晃、日下部宜宏、林亜紀、白尾吏、岡野和広、三田和英、嶋田透、河口豊・古賀克己

    日本蚕糸学会本会  2002.4 

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    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • カイコm90系統およびモザイク系統における自然単為発生

    城戸和美、北佳織、日下部宜宏、河口豊、古賀克己

    日本蚕糸学会本会  2002.4 

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    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • 蚕の突然変異系統を用いた新規相同組換関連遺伝子の解析

    宮川世志幸、日下部宜宏、河口豊、古賀克己

    日本蚕糸学会本会  2002.4 

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    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • カイコ培養細胞における相同組換え修復測定系の確立とその解析

    門宏明、日下部宜宏、青木智佐、李在萬、河口豊、古賀克己

    日本蚕糸学会本会  2002.4 

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    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • カイコ培養細胞抽出液におけるNHEJ活性

    大崎有紗、日下部宜宏、青木智佐、河口豊、古賀克己

    日本蚕糸学会本会  2002.4 

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    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • カイコ卵の精孔外部と精孔副枝とにおける形態変異

    河口豊、日下部宜宏、古賀克己

    日本蚕糸学会本会  2002.4 

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    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • カイコの熱ショック蛋白質HSC70-4のプロモーター領域を含む遺伝子の構造と発現解析

    李在萬、日下部宜宏、河口豊、古賀克己

    日本蚕糸学会本会  2002.4 

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    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • カイコの精巣成熟に関わる新規クローンの解析

    宮川世志幸、日下部宜宏、河口豊、古賀克己

    日本分子生物学会本会  2002.12 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • カイコm90系統およびモザイク系統における自然単為発生機構解析の試み

    城戸和美、日下部宜宏、北佳織、河口 豊、古賀克己

    日本分子生物学会本会  2002.12 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • Characterization of novel cDNA clone related to testis development in Bombyx mori International conference

    Takahiro Kusakabe, Yoshitaka Miyagawa, Yutaka Kawaguchi, Katsumi Koga

    The 2002 joint meetings of the Korean society of sericultural science and the Japanese society of sericultural science  2002.10 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:Suwon   Country:Korea, Republic of  

  • The roles of BmMre11 and BmRad50 protein in DSB repair International conference

    Masateru Takahashi, Takahiro Kusakabe, Aki Hayashgi, Tsukasa Shirao, Kazuhiro Okano, Kazuei Mita, Toru Shimada, Yutaka Kawaguchi, Katsumi Koga

    The 2002 joint meetings of the Korean society of sericultural science and the Japanese society of sericultural science  2002.10 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:Suwon   Country:Korea, Republic of  

  • DSB修復におけるカイコMre11、Rad50タンパク質の機能とそのノックダウンが細胞に与える影響

    高橋将晃、日下部宜宏、林 亜紀、白尾 吏、岡野和広、三田和英、嶋田 透、河口 豊、古賀克己

    日本分子生物学会本会  2002.12 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • カイコribonuclease L inhibitor (RLI) ホモログの二本鎖 RNA に対する応答機構の解析

    前田拓志、日下部宜宏、阪下浩介、河口豊、古賀克己

    日本分子生物学会本会  2002.12 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • カイコ培養細胞における相同組換え修復の解析

    門宏明、日下部宜宏、青木智佐、李在萬、河口豊、古賀克己

    日本分子生物学会本会  2002.12 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • カイコ培養細胞抽出液におけるNHEJ活性の解析

    大崎有紗、日下部宜宏、青木智佐、河口豊、古賀克己

    日本分子生物学会本会  2002.12 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • カイコ培養細胞における相同組換え修復の解析

    門宏明、日下部宜宏、青木智佐、李在萬、河口豊、古賀克己

    日本分子生物学会本会  2002.12 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • DNA損傷修復と細胞周期チェックポイントにおけるカイコMre11複合体の機能

    高橋将晃・日下部宜宏・林亜紀・白尾吏・岡野和広・三田和英・嶋田透・河口豊・古賀克己

    日本蚕糸学会九州支部会  2003.10 

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    Presentation type:Oral presentation (general)  

    Venue:京都   Country:Japan  

  • カイコ精巣における突然変異体の解析 Invited

    日下部宜宏、宮川世志幸、河口豊、古賀克己

    日本遺伝学会本会  2002.11 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:福岡   Country:Japan  

  • Molecular characterization of the promoter and structure of complete sequence of the gene coding for the silkworm translationally controlled tumor protein(P23/TCTP) International conference

    Jae Man Lee, Takahiro Kusakabe, Yutaka Kawaguchi, Chisa Yasunaga-Aoki, Si-Kab Nho and Katsumi Koga

    The 2002 joint meetings of the Korean society of sericultural science and the Japanese society of sericultural science  2002.10 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:Suwon   Country:Korea, Republic of  

  • Molecular characterization of the translationally controlled tumor protein (TCTP/P23) promoter and complete sequence from the silkworm, Bombyx mori

    Jaeman Lee, Takahiro Kusakabe, Yutaka Kawaguchi and Katsumi Koga

    日本分子生物学会本会  2002.12 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:横浜   Country:Japan  

  • カイコ培養細胞への非ウイルス性遺伝子導入法の改善

    前田拓志・日下部宜宏・河口豊・古賀克己

    日本蚕糸学会九州支部会  2003.10 

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    Presentation type:Oral presentation (general)  

    Venue:京都   Country:Japan  

  • バイシストロン性ベクターを用いた強制発現細胞株の作製

    前田 拓志、日下部 宜宏、中島 信彦、渋谷 典広、河口 豊、古賀 克己

    日本蚕糸学会  2003.3 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • カイコを用いたRNAiによる、DNA二重鎖切断修復関連遺伝子の単離

    月岡 春奈、日下部 宜宏、岡野 和広、三田 和英、嶋田 透、高橋 将晃、門 宏明、河口 豊、古賀 克己

    日本蚕糸学会  2003.3 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • カイコにおける自然単為発生機構解析の試み

    城戸 和美、日下部 宜宏、 北 佳織、河口 豊、古賀 克己

    日本蚕糸学会  2003.3 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • カイコ PKR inhibitor (PKRI) の機能解析

    阪下 浩介、日下部 宜宏、青木 智佐、河口 豊、古賀 克己

    日本蚕糸学会  2003.3 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • Construction of constitutive gene expression systems using the HSC70-4 and TCTP promoters International conference

    Jae Man Lee; Takahiro Kusakabe; Yutaka Kawaguchi; Si-Kab Nho; Katsumi Koga

    The 2003 joint meetings of the Korean society of sericultural science and the Japanese society of sericultural science  2003.11 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:茨城   Country:Japan  

  • 遺伝的組換えに欠損がみられる突然変異系統r20を用いた減数分裂期関連因子の解析

    宮川世志幸・日下部宜宏・李在萬・河口 豊・古賀克己

    日本蚕糸学会九州支部会  2003.10 

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    Presentation type:Oral presentation (general)  

    Venue:京都   Country:Japan  

  • Characterization of Homologous Recombination DNA Repair in Silkworm Cells International conference

    Takahiro Kusakabe; Hiroaki Mon; Haruna Tsukioka; Kazuhiro Okano; Kazuei Mita;Toru Shimada; Yutaka Kawaguchi; Katsumi Koga

    The 2003 joint meetings of the Korean society of sericultural science and the Japanese society of sericultural science  2003.11 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:茨城   Country:Japan  

  • カイコ培養細胞におけるDNA二重鎖切断修復経路の解析

    門 宏明、日下部 宜宏、青木 智佐、李 在萬、河口 豊、古賀 克己

    日本蚕糸学会  2003.3 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • 昆虫における新規DNA二重鎖切断修復関連遺伝子単離の試み

    月岡 春奈、日下部 宜宏、岡野 和広、三田 和英、嶋田 透、高橋 将晃、門 宏明、河口 豊、古賀 克己

    日本分子生物学会本会  2003.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • 昆虫細胞内におけるNHEJ活性の解析

    大崎 有紗、日下部 宜宏、青木 智佐、河口 豊、古賀 克己

    日本分子生物学会本会  2003.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • 相同組換えを用いたカイコ染色体上へのDNA導入の検討

    門 宏明、日下部 宜宏、河口 豊、古賀克己

    日本分子生物学会本会  2003.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • φC31 integraseによるカイコ染色体上での部位特異的遺伝子導入

    中山 岳、李在萬、日下部 宜宏、河口 豊、古賀 克己、田村 俊樹

    日本分子生物学会本会  2003.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • 精巣成熟に関わる新規クローンBm44 (BmAHA1)の機能解析

    宮川 世志幸、日下部 宜宏、河口 豊、古賀 克己

    日本分子生物学会本会  2003.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • カイコ染色体における相同組換え修復の解析

    門宏明・日下部宜宏・河口豊・古賀克己

    日本蚕糸学会本会  2004.3 

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    Presentation type:Oral presentation (general)  

    Venue:岩手   Country:Japan  

  • カイコNbs1をコードするcDNAのクローニング

    高橋将晃・日下部宜宏・河口豊・古賀克己

    日本蚕糸学会本会  2004.3 

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    Venue:岩手   Country:Japan  

  • バキュロウイルス形質転換法によるカイコノックダウンライブラリ−の作製

    荒神佳人・日下部宜宏・河口豊・古賀克己

    日本蚕糸学会本会  2004.3 

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    Presentation type:Oral presentation (general)  

    Venue:岩手   Country:Japan  

  • カイコ胚致死突然変異、長胴蚕Set の形質発現─Set 胚子の組織学的解析─

    河口豊・川上和孝・日下部宜宏・古賀克己

    日本蚕糸学会本会  2004.3 

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    Presentation type:Oral presentation (general)  

    Venue:岩手   Country:Japan  

  • カイコDNAの損傷修復 Invited

    日下部 宜宏

    文部科学省ナショナルバイオリソースプロジェクト「カイコ」公開シンポジュウム&ワークショプ  2004.9 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • 昆虫の染色体外DNA二重鎖切断修復に関わる遺伝子の機能解析

    月岡春奈・日下部宜宏・岡野和広・三田和英・嶋田透・高橋将晃・門宏明・河口 豊

    日本分子生物学会  2004.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • カイコ染色体における相同組換え修復の解析

    門宏明・日下部宜宏・河口 豊

    日本分子生物学会  2004.12 

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    Venue:神戸   Country:Japan  

  • カイコ培養細胞におけるTet-on systemを用いた遺伝子発現誘導システムの構築PKR

    唐崎紀子・門宏明・河口 豊・日下部 宜宏

    日本分子生物学会  2004.12 

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    Venue:神戸   Country:Japan  

  • φC31 integraseによるカイコ染色体上での部位特異的遺伝子導入

    中山 岳・李 在 萬・日下部宜宏・河口 豊・古賀克己・神田俊男・田村俊樹

    日本分子生物学会  2004.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • バキュロウイルス形質転換法を利用したRNAiによるノックダウンベクターの開発

    荒神佳人・李 在 萬・日下部宜宏・河口 豊

    日本分子生物学会  2004.12 

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    Venue:神戸   Country:Japan  

  • カイコ精巣におけるAha1タンパク質の発現局在及び機能解析

    宮川世志幸・李 在 萬・古賀克己・河口 豊・日下部宜宏

    日本分子生物学会  2004.12 

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    Venue:神戸   Country:Japan  

  • 改変バキュロウイルスによるカイコ卵巣移行効率の上昇

    川上直哉・李在萬・日下部宜宏・河口豊

    日本分子生物学会  2005.12 

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    Presentation type:Oral presentation (general)  

    Venue:福岡   Country:Japan  

  • カイコヒストンH2A, H2AZ, H2AXのクローニングおよび機能解析

    光延仁志・高橋将晃・門宏明・李在萬・日下部宜宏・河口豊

    日本分子生物学会  2005.12 

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    Venue:福岡   Country:Japan  

  • カイコ生殖巣における減数分裂期相同組換え関連タンパク質の動態

    石川友紀子・小坂康士・門宏明・李在萬・河口豊・日下部宜宏

    日本分子生物学会  2005.12 

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    Venue:福岡   Country:Japan  

  • 昆虫細胞における相同組換え関連遺伝子の機能解析

    ・李在萬・日下部宜宏・河口豊

    日本分子生物学会  2005.12 

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    Venue:福岡   Country:Japan  

  • The superoxide dismutases are required for full virulence of Pseudomonas aeruginosa to the silkworm, Bombyx mori International conference

    Kazuhiro Iiyama, Yuuka Chieda, Jae Man Lee, Takahiro Kusakabe, Chisa Yasunaga-Aoki, and Susumu Shimizu

    5th Asia-Pacific Congress of Entomology  2005.10 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:Jeju   Country:Korea, Republic of  

  • Pathogenicity of gacA mutant of Pseudomonas aeruginosa PA01 in the silkworm, Bombyx mori International conference

    Yuuka Chieda, Kazuhiro Iiyama, Jae Man Lee, Takahiro Kusakabe, Chisa Yasunaga-Aoki, Susumu Shimizu

    5th Asia-Pacific Congress of Entomology  2005.10 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:Jeju   Country:Korea, Republic of  

  • The expression profiles of silkworm RAD51 and DMC1 genes during the process of meiotic recombination International conference

    Yukiko Ishikawa, Yoshiaki Kosaka, Hiroaki Mon, Lee Jae Man, Yutaka Kawaguchi, Takahiro Kusakabe

    5th Asia-Pacific Congress of Entomology  2005.10 

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    Presentation type:Symposium, workshop panel (public)  

    Venue:Jeju   Country:Korea, Republic of  

  • Construction of Tet-on gene expression system in silkworm, Bombyx mori International conference

    Noriko Karasaki, Hiroaki Mon, Takahiro Kusakabe, Yutaka Kawaguchi, Katumi Koga

    5th Asia-Pacific Congress of Entomology  2005.10 

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    Venue:Jeju   Country:Korea, Republic of  

  • Construction of silkworm gene silencing systems using bacurovirus mediated gene transfer International conference

    Yoshito Kojin, Jae Man Lee, Takahiro Kusakabe, Yutaka Kawaguchi

    5th Asia-Pacific Congress of Entomology  2005.10 

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    Venue:Jeju   Country:Korea, Republic of  

  • Double strand break repair by homologous recombination in silkworm cells International conference

    Hiroaki Mon, Ryohei Sugahara, Takahiro Kusakabe, Yutaka Kawaguchi

    5th Asia-Pacific Congress of Entomology  2005.10 

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    Venue:Jeju   Country:Korea, Republic of  

  • Comparison of gene transfer efficiency into insect cells and tissues with different methods International conference

    Jae Man Lee, Masateru Takahashi, Hiroaki Mon, Yutaka Kawaguchi, Takahiro Kusakabe

    5th Asia-Pacific Congress of Entomology  2005.10 

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    Venue:Jeju   Country:Korea, Republic of  

  • Establishment of fluorescent proteins-fusion systems in the silkworm, Bombyx mori International conference

    Hitoshi Mitsunobu, Hiroaki Mon, Yutaka Kawaguchi, Takahiro Kusakabe

    5th Asia-Pacific Congress of Entomology  2005.10 

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    Venue:Jeju   Country:Korea, Republic of  

  • Comparison of productive and non-productive Bombyx mori nucleopolyhedrovirus infection in selected insect cell lines International conference

    Naoya Kawakami, Lee Jae Man, Yutaka Kawaguchi, Takahiro Kusakabe

    5th Asia-Pacific Congress of Entomology  2005.10 

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    Venue:Jeju   Country:Korea, Republic of  

  • 一過性発現系によるカイコ絹糸腺でのプロモーター活性検定

    小島 桂・日下部宜宏・前田拓志・内野恵郎・小林 功・瀬筒秀樹・神田俊男・田村俊樹・玉田 靖

    蚕糸学会本会  2005.4 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • カイコ感染時における緑膿菌スーパーオキシドジスムターゼの役割

    飯山和弘・ 千枝結香・李 在萬・日下部宜宏・青木智佐・清水 進

    蚕糸学会本会  2005.4 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • Pseudomonas aeruginosa gacA変異株のカイコに対する病原性(4)

    千枝結香・飯山和弘・李 在萬・日下部宜宏・青木智佐・清水 進

    蚕糸学会本会  2005.4 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • 大腸菌でのCI-b1の大量発現およびCI-b1結合タンパク質の探索

    何 寧佳・藤井 博・日下部宜宏・麻生陽一・伴野 豊・山本幸治

    蚕糸学会本会  2005.4 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • カイコにおける相同組換えに関わる遺伝子の機能解析

    門宏明・日下部 宜宏・古賀克己・河口 豊

    蚕糸学会本会  2005.4 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • UV照射によるS期チェックポイントの活性化について

    高橋将晃・ 日下部宜宏・河口 豊

    蚕糸学会本会  2005.4 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • カイコにおける構成的遺伝子発現系の構築と解析

    李 在 萬・日下部宜宏・河口 豊

    蚕糸学会本会  2005.4 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • 染色体外DNA二重鎖切断の修復に関わるカイコ遺伝子の機能解析

    月岡春奈・日下部宜宏・岡野和広・三田和英・嶋田 透・高橋将晃・門 宏明・古賀克己・河口 豊

    蚕糸学会本会  2005.4 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • カイコにおける相同組換えに関わる遺伝子の機能解析

    門 宏明、管原 亮平、李 在萬、河口 豊、日下部 宜宏

    2006 年度組換え・ゲノム再編ワークショップ  2006.10 

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    Presentation type:Oral presentation (general)  

    Venue:兵庫   Country:Japan  

  • リゾチームのアミロイド繊維の形成に関わる疎水領域3の重要性

    榊原由佳子・内堀しずか・大栗誉敏・植田正・日下部宜宏・杉元康志

    日本分子生物学会  2008.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • オボアルブミンとリゾチームの相互作用によるアミロイド繊維の解析

    内堀しずか・榊原由佳子・杉元康志・日下部宜宏・大栗誉敏・植田正

    日本分子生物学会  2008.12 

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    Presentation type:Oral presentation (general)  

    Venue:神戸   Country:Japan  

  • 緑膿菌のDNA修復機構とカイコに対する病原力との関連について

    飯山和弘・千枝結香・李在萬・日下部宜宏・青木智佐・清水進

    蚕糸学会本会  2008.3 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • Golicの方法に基づくカイコにおけるジーンターゲティングの試み

    鈴木雅京・日下部宜宏・田村俊樹・松本正

    蚕糸学会本会  2008.3 

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    Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  • 九州大学カイコ系統を用いた組換えタンパク質生産工場 (特集 昆虫工場の現場から)

    福森 寿善, 藤井 告, 日下部 宜宏

    蚕糸・昆虫バイオテック  2020.8 

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    Language:Japanese  

    Country:Japan  

  • Silkworm‐BEVSを用いたPRRSVに対するVLPワクチンの作製検討

    長井亮, 李在萬, 宮田健, 増田亮津, 日下部宜宏

    日本蚕糸学会大会・蚕糸・昆虫機能学術講演会講演要旨集  2019.3 

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    Language:Japanese  

    Country:Japan  

    Silkworm‐BEVSを用いたPRRSVに対するVLPワクチンの作製検討

  • 昆虫工場を利用したウイルス様粒子ワクチン生産系の確立とその応用

    増田 亮津, 宮田 健, 南畑 孝介, 神谷 典穂, 李 在萬, 日下部 宜宏

    衛生動物  2019.3 

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    Language:Japanese  

    Country:Japan  

    昆虫工場を利用したウイルス様粒子ワクチン生産系の確立とその応用

  • カイコ発現マラリアワクチン抗原の機能性について

    宮田健, LEE J M, 日下部宜宏

    日本農芸化学会大会講演要旨集(Web)  2018.3 

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    Language:Japanese  

    Country:Japan  

    カイコ発現マラリアワクチン抗原の機能性について

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MISC

  • COVID-19を治療するためのドラッグ・リパーパシング(Drug repurposing for the treatment of COVID-19)

    Kato Yuri, Nishiyama Kazuhiro, Nishimura Akiyuki, Noda Takamasa, Okabe Kaori, Kusakabe Takahiro, Kanda Yasunari, Nishida Motohiro

    Journal of Pharmacological Sciences   149 ( 3 )   108 - 114   2022.7   ISSN:1347-8613

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    Language:English   Publisher:(公社)日本薬理学会  

  • In Gene Families: Structure, Function, Genetics and Evolution.

    Hori, K., Kusakabe, T., Motoki, K., Zhang, R., Kaihara, R., Yatsuki, H., and Sugimoto, Y.

    Holmes, R. S. and Lim, H. A. (eds) World Scientific Pub. Co. London.   1996.1

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    Language:English   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

Professional Memberships

  • 日本蚕糸学会

  • 日本分子生物学会

Committee Memberships

  • 日本蚕糸学会   Vice-chairman   Domestic

    2023.4 - 2025.3   

  • 日本蚕糸学会   Executive   Domestic

    2012.5 - 2023.3   

  • 日本蚕糸学会   Councilor   Domestic

    2004.7 - Present   

  • 日本蚕糸学会   Steering committee member   Domestic

    2004.6 - 2008.5   

  • 日本蚕糸学会   編集委員   Domestic

    2004.6 - 2008.5   

  • 昆虫遺伝研究会   Organizer   Domestic

    2003.11 - 2014.12   

  • 昆虫遺伝研究会   会計幹事   Domestic

    2003.11 - 2014.12   

  • 昆虫遺伝研究会   Organizer   Domestic

    2003.11 - 2004.12   

  • 昆虫遺伝研究会   会計幹事   Domestic

    2003.11 - 2004.12   

  • 日本蚕糸学会九州支部会   Organizer   Domestic

    2002.11 - 2004.12   

  • 日本蚕糸学会九州支部会   会計幹事   Domestic

    2002.11 - 2004.12   

  • 日本蚕糸学会九州支部会   Organizer   Domestic

    1997.11 - 2002.10   

  • 日本蚕糸学会九州支部会   庶務幹事   Domestic

    1997.11 - 2002.10   

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Academic Activities

  • 座長(Chairmanship)

    日本分子生物学会  ( Japan ) 2008.12 - Present

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    日本蚕糸学会九州支部会  ( Japan ) 2005.11 - Present

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    日本蚕糸学会九州支部会  ( Japan ) 2004.11 - Present

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    Type:Competition, symposium, etc. 

  • 委員

    ナショナルバイオリソースプロジェクト公開シンポジウム  ( Japan ) 2004.9 - Present

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    Type:Competition, symposium, etc. 

    Number of participants:100

  • 座長(Chairmanship)

    日本蚕糸学会九州支部会  ( Japan ) 2003.11 - Present

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    日本蚕糸学会本会  ( Japan ) 2003.4 - Present

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    日本蚕糸学会九州支部会  ( Japan ) 2002.11 - Present

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    日本蚕糸学会本会  ( Japan ) 2002.4 - Present

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    日本蚕糸学会九州支部会  ( Japan ) 2001.11 - Present

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    日本蚕糸学会本会  ( Japan ) 2001.3 - Present

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    日本蚕糸学会九州支部会  ( Japan ) 2000.11 - Present

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    日本蚕糸学会本会  ( Japan ) 2000.4 - Present

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    日本蚕糸学会九州支部会  ( Japan ) 1999.11 - Present

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    日本蚕糸学会本会  ( Japan ) 1999.4 - Present

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    日本蚕糸学会九州支部会  ( Japan ) 1998.11 - Present

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    日本蚕糸学会本会  ( Japan ) 1998.4 - Present

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    日本蚕糸学会九州支部会  ( Japan ) 1997.11 - Present

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    Type:Competition, symposium, etc. 

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Research Projects

  • 昆虫工場を用いた産業用組換えタンパク質の生産技術開発

    2023.4 - 2024.3

    Joint research

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    Authorship:Principal investigator  Grant type:Other funds from industry-academia collaboration

  • 昆虫工場を用いた産業用組換えタンパク質の生産技術開発

    2022.4 - 2023.3

    Joint research

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    Authorship:Principal investigator  Grant type:Other funds from industry-academia collaboration

  • カイコ昆虫モダリティによる低価格な国産組換えワクチンに関する研究開発

    2022 - 2026

    国立研究開発法人日本医療研究開発機構 ワクチン・新規モダリティ研究開発事業

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    Authorship:Principal investigator  Grant type:Contract research

  • 昆虫工場に最適な無絹糸腺カイコの作出

    Grant number:21K19121  2021 - 2023

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Challenging Research(Exploratory)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 蚕業革命による新産業創出プロジェクト

    2021 - 2022

    内閣府PRISM

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    Authorship:Coinvestigator(s)  Grant type:Contract research

  • FFG SDGs私募債/新型コロナウイルスワクチンの開発

    2021

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    Grant type:Donation

  • 昆虫工場を用いた産業用組換えタンパク質の生産技術開発

    2020.12 - 2021.12

    Joint research

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    Authorship:Principal investigator  Grant type:Other funds from industry-academia collaboration

  • 昆虫工場を用いた産業用組換えタンパク質の生産技術開発

    2019.12 - 2020.11

    Joint research

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    Authorship:Principal investigator  Grant type:Other funds from industry-academia collaboration

  • 昆虫分散型動原体の形成と制御の分子基盤

    Grant number:26252057  2014 - 2017

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 昆虫細胞における遺伝情報の収納と発現

    Grant number:26660269  2014 - 2015

    Grants-in-Aid for Scientific Research  Grant-in-Aid for challenging Exploratory Research

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 遺伝子組換え昆虫ゲノムのエピジェネティク制御

    Grant number:22248004  2010 - 2013

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • NPV多角体遺伝子発現制御ネットワーク

    2010 - 2013

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • リゾチームをモデルタンパク質としたアミロイド線維形成機構と細胞毒性発現の解析

    2010 - 2012

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 昆虫分散型動原体染色体の謎

    Grant number:21658018  2009 - 2010

    Grants-in-Aid for Scientific Research  Grant-in-Aid for challenging Exploratory Research

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • カイコ遺伝子機能制御法の開発

    2007 - 2011

    農林水産省 アグリ・ゲノム研究の総合的な推進

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    Authorship:Coinvestigator(s)  Grant type:Contract research

  • 高効率物質生産系宿主としてのカイコのポストゲノム育種

    2006 - 2010

    新技術・新分野創出のための基礎研究推進事業

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    Authorship:Principal investigator  Grant type:Contract research

  • 昆虫における遺伝子ターゲティングの分子機構とその効率的利用

    Grant number:17380037  2005 - 2007

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 東アジア各地に生息するクワコを含む野蚕集団の、進化地理学・集団遺伝学的考察

    2005 - 2007

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 温泉ユスリカ由来耐熱タンパク質の解析

    Grant number:17658028  2005 - 2006

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Exploratory Research

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • カイコ変異体のプロテオーム解析

    2003

    農学研究院教育研究特別経費

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    Authorship:Coinvestigator(s)  Grant type:On-campus funds, funds, etc.

  • 昆虫細胞におけるDNA修復と減数分裂期相同組換え

    2002 - 2004

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists (A)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • カイコ突然変異体利用による高感度遺伝毒性検定系の開発

    2002 - 2003

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Exploratory Research

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • カイコ全ゲノム解析のための研究者ネットワークの構築

    2002

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • DNA・精子レポジトリーの構築によるカイコ遺伝子資源の活用と保存

    2001 - 2004

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 昆虫を用いた精巣特異的に発現される遺伝子群の解析

    2000

    上原記念生命科学財団研究奨励金

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    Authorship:Principal investigator  Grant type:Contract research

  • 家蚕の5齢致死突然変異利用による変態制御機構の解析

    1999

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research on Priority Areas

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • カイコの卵形成突然変異遺伝子にみられる機能発現の解析と形態形成

    1998 - 2000

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • カイコの胚発生・後発生における構成遺伝子と特殊遺伝子の差時的発現制御機構

    1998 - 1999

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

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Class subject

  • 農学実験第一

    2024.10 - 2025.3   Second semester

  • 農学実験第三

    2024.10 - 2025.3   Second semester

  • 昆虫機能学Ⅱ

    2024.6 - 2024.8   Summer quarter

  • Master's Thesis

    2024.4 - 2025.3   Full year

  • 農業生物資源学特別研究第一

    2024.4 - 2025.3   Full year

  • 農業生物資源学特別研究第二

    2024.4 - 2025.3   Full year

  • 農業生物資源学特別講究

    2024.4 - 2025.3   Full year

  • 農業生物資源学特別演習

    2024.4 - 2025.3   Full year

  • 農業生物資源学特別実験

    2024.4 - 2025.3   Full year

  • Master's Thesis Research Ⅱ

    2024.4 - 2025.3   Full year

  • Seminar in a Specified Field Ⅱ

    2024.4 - 2025.3   Full year

  • 化学実験

    2024.4 - 2024.9   First semester

  • 農学実験第二

    2024.4 - 2024.9   First semester

  • 分子生物学実験

    2024.4 - 2024.9   First semester

  • 昆虫機能学Ⅰ

    2024.4 - 2024.6   Spring quarter

  • トランスジェニック生物学特論

    2024.4 - 2024.6   Spring quarter

  • ゲノムサイエンスとエピジェネティクス

    2023.10 - 2023.12   Fall quarter

  • トランスジェニック生物学特論

    2023.4 - 2023.6   Spring quarter

  • 農学実験第三

    2022.10 - 2023.3   Second semester

  • 農学実験第一

    2022.10 - 2023.3   Second semester

  • ゲノムサイエンスとエピジェネティクス

    2022.10 - 2022.12   Fall quarter

  • 昆虫機能学Ⅱ

    2022.6 - 2022.8   Summer quarter

  • Master's Thesis

    2022.4 - 2023.3   Full year

  • 農業生物資源学特別実験

    2022.4 - 2023.3   Full year

  • 農業生物資源学特別演習

    2022.4 - 2023.3   Full year

  • 農業生物資源学特別講究

    2022.4 - 2023.3   Full year

  • 農業生物資源学特別研究第二

    2022.4 - 2023.3   Full year

  • 農業生物資源学特別研究第一

    2022.4 - 2023.3   Full year

  • Master's Thesis Research Ⅱ

    2022.4 - 2023.3   Full year

  • Seminar in a Specified Field Ⅱ

    2022.4 - 2023.3   Full year

  • 農学実験第二

    2022.4 - 2022.9   First semester

  • 化学実験

    2022.4 - 2022.9   First semester

  • 分子生物学実験

    2022.4 - 2022.9   First semester

  • トランスジェニック生物学特論

    2022.4 - 2022.6   Spring quarter

  • 昆虫機能学Ⅰ

    2022.4 - 2022.6   Spring quarter

  • トランスジェニック生物学特論

    2022.4 - 2022.6   Spring quarter

  • 農学実験第一

    2021.10 - 2022.3   Second semester

  • 農学実験第三

    2021.10 - 2022.3   Second semester

  • ゲノムサイエンスとエピジェネティクス

    2021.10 - 2021.12   Fall quarter

  • 農業生物資源学特別研究第一

    2021.4 - 2022.3   Full year

  • 農業生物資源学特別実験

    2021.4 - 2022.3   Full year

  • 農業生物資源学特別演習

    2021.4 - 2022.3   Full year

  • 農業生物資源学特別講究

    2021.4 - 2022.3   Full year

  • 農業生物資源学特別研究第二

    2021.4 - 2022.3   Full year

  • 昆虫機能学

    2021.4 - 2021.9   First semester

  • 化学実験

    2021.4 - 2021.9   First semester

  • 分子生物学実験

    2021.4 - 2021.9   First semester

  • 農学実験第二

    2021.4 - 2021.9   First semester

  • トランスジェニック生物学特論

    2021.4 - 2021.6   Spring quarter

  • Master's Thesis Research Ⅰ

    2021.4 - 2021.6   Spring quarter

  • Seminar in a Specified Field Ⅰ

    2021.4 - 2021.6   Spring quarter

  • ゲノムサイエンスとエピジェネティクス

    2020.10 - 2020.12   Fall quarter

  • 昆虫機能学

    2020.4 - 2020.9   First semester

  • トランスジェニック生物学特論

    2020.4 - 2020.6   Spring quarter

  • 遺伝学

    2019.10 - 2020.3   Second semester

  • ゲノムサイエンスとエピジェネティクス

    2019.10 - 2019.12   Fall quarter

  • 基幹教育セミナー

    2019.6 - 2019.8   Summer quarter

  • 昆虫機能学

    2019.4 - 2019.9   First semester

  • トランスジェニック生物学特論

    2019.4 - 2019.6   Spring quarter

  • ゲノムサイエンスとエピジェネティクス

    2018.10 - 2018.12   Fall quarter

  • 遺伝学

    2017.10 - 2018.3   Second semester

  • 農学実験第一

    2017.10 - 2018.3   Second semester

  • 農学実験第三

    2017.10 - 2018.3   Second semester

  • 昆虫ゲノム科学演習

    2017.4 - 2018.3   Full year

  • 農業生物資源学特別実験

    2017.4 - 2018.3   Full year

  • 農業生物資源学特別演習

    2017.4 - 2018.3   Full year

  • 農業生物資源学特別講究

    2017.4 - 2018.3   Full year

  • 農業生物資源学特別研究第二

    2017.4 - 2018.3   Full year

  • 農業生物資源学特別研究第一

    2017.4 - 2018.3   Full year

  • ゲノムサイエンスとエピジェネティクス

    2017.4 - 2017.9   First semester

  • トランスジェニック生物学概論

    2017.4 - 2017.9   First semester

  • Agricultural Bioresource Sciences

    2017.4 - 2017.9   First semester

  • 分子生物学実験

    2017.4 - 2017.9   First semester

  • 化学実験

    2017.4 - 2017.9   First semester

  • 農学実験第二

    2017.4 - 2017.9   First semester

  • Topics of Bioresources (G30)

    2017.4 - 2017.9   First semester

  • 昆虫機能学

    2017.4 - 2017.9   First semester

  • トランスジェニック生物学概論

    2017.4 - 2017.9   First semester

  • 昆虫分子遺伝学

    2017.4 - 2017.9   First semester

  • 遺伝学

    2016.10 - 2017.3   Second semester

  • 農学実験第三

    2016.10 - 2017.3   Second semester

  • 農学実験第一

    2016.10 - 2017.3   Second semester

  • 農業生物資源学特別実験

    2016.4 - 2017.3   Full year

  • 昆虫ゲノム科学演習

    2016.4 - 2017.3   Full year

  • 農業生物資源学特別研究第一

    2016.4 - 2017.3   Full year

  • 農業生物資源学特別研究第二

    2016.4 - 2017.3   Full year

  • 農業生物資源学特別講究

    2016.4 - 2017.3   Full year

  • 農業生物資源学特別演習

    2016.4 - 2017.3   Full year

  • トランスジェニック生物学特論

    2016.4 - 2016.9   First semester

  • 昆虫分子遺伝学

    2016.4 - 2016.9   First semester

  • Agricultural Bioresource Sciences

    2016.4 - 2016.9   First semester

  • Topics of Bioresources (G30)

    2016.4 - 2016.9   First semester

  • 分子生物学実験

    2016.4 - 2016.9   First semester

  • 化学実験

    2016.4 - 2016.9   First semester

  • 農学実験第二

    2016.4 - 2016.9   First semester

  • ゲノムサイエンスとエピジェネティクス

    2016.4 - 2016.9   First semester

  • 自然科学総合実験

    2016.4 - 2016.9   First semester

  • 昆虫機能学

    2016.4 - 2016.9   First semester

  • 農学実験第三

    2015.10 - 2016.3   Second semester

  • 遺伝学

    2015.10 - 2016.3   Second semester

  • 農学実験第一

    2015.10 - 2016.3   Second semester

  • 農業生物資源学特別実験

    2015.4 - 2016.3   Full year

  • 農学入門

    2015.4 - 2016.3   Full year

  • 農業生物資源学特別研究第一

    2015.4 - 2016.3   Full year

  • 農業生物資源学特別研究第二

    2015.4 - 2016.3   Full year

  • 農業生物資源学特別講究

    2015.4 - 2016.3   Full year

  • 農業生物資源学特別演習

    2015.4 - 2016.3   Full year

  • トランスジェニック生物学概論

    2015.4 - 2015.9   First semester

  • 自然科学総合実験

    2015.4 - 2015.9   First semester

  • Topics of Bioresources (G30)

    2015.4 - 2015.9   First semester

  • Agricultural Bioresource Sciences

    2015.4 - 2015.9   First semester

  • 昆虫機能利用学

    2015.4 - 2015.9   First semester

  • 農学実験第二

    2015.4 - 2015.9   First semester

  • 化学実験

    2015.4 - 2015.9   First semester

  • 分子生物学実験

    2015.4 - 2015.9   First semester

  • ゲノムサイエンスとエピジェネティクス

    2015.4 - 2015.9   First semester

  • 昆虫分子遺伝学

    2015.4 - 2015.9   First semester

  • 農学実験第三

    2014.10 - 2015.3   Second semester

  • 分子生物学概論

    2014.10 - 2015.3   Second semester

  • 遺伝学

    2014.10 - 2015.3   Second semester

  • 農学実験第一

    2014.10 - 2015.3   Second semester

  • 農業生物資源学特別実験

    2014.4 - 2015.3   Full year

  • 生物資源生産科学概要

    2014.4 - 2015.3   Full year

  • 農業生物資源学特別研究第一

    2014.4 - 2015.3   Full year

  • 農業生物資源学特別研究第二

    2014.4 - 2015.3   Full year

  • 農業生物資源学特別講究

    2014.4 - 2015.3   Full year

  • 農業生物資源学特別演習

    2014.4 - 2015.3   Full year

  • トランスジェニック生物学概論

    2014.4 - 2014.9   First semester

  • Topics of Bioresources (G30)

    2014.4 - 2014.9   First semester

  • Agricultural Bioresource Sciences

    2014.4 - 2014.9   First semester

  • 分子生物学

    2014.4 - 2014.9   First semester

  • 昆虫機能利用学

    2014.4 - 2014.9   First semester

  • 農学実験第二

    2014.4 - 2014.9   First semester

  • 化学実験

    2014.4 - 2014.9   First semester

  • 分子生物学実験

    2014.4 - 2014.9   First semester

  • ゲノムサイエンスとエピジェネティクス

    2014.4 - 2014.9   First semester

  • 昆虫分子遺伝学

    2014.4 - 2014.9   First semester

  • 農学実験第三

    2013.10 - 2014.3   Second semester

  • 分子生物学概論

    2013.10 - 2014.3   Second semester

  • 遺伝学

    2013.10 - 2014.3   Second semester

  • 農学実験第一

    2013.10 - 2014.3   Second semester

  • 農業生物資源学特別実験

    2013.4 - 2014.3   Full year

  • 生物資源生産科学概要

    2013.4 - 2014.3   Full year

  • 農業生物資源学特別研究第一

    2013.4 - 2014.3   Full year

  • 農業生物資源学特別研究第二

    2013.4 - 2014.3   Full year

  • 農業生物資源学特別講究

    2013.4 - 2014.3   Full year

  • 農業生物資源学特別演習

    2013.4 - 2014.3   Full year

  • トランスジェニック生物学概論

    2013.4 - 2013.9   First semester

  • Topics of Bioresources (G30)

    2013.4 - 2013.9   First semester

  • Agricultural Bioresource Sciences

    2013.4 - 2013.9   First semester

  • 分子生物学

    2013.4 - 2013.9   First semester

  • 昆虫機能利用学

    2013.4 - 2013.9   First semester

  • 農学実験第二

    2013.4 - 2013.9   First semester

  • 化学実験

    2013.4 - 2013.9   First semester

  • 分子生物学実験

    2013.4 - 2013.9   First semester

  • ゲノムサイエンスとエピジェネティクス

    2013.4 - 2013.9   First semester

  • 昆虫分子遺伝学

    2013.4 - 2013.9   First semester

  • 農学実験第三

    2012.10 - 2013.3   Second semester

  • 分子生物学概論

    2012.10 - 2013.3   Second semester

  • 遺伝学

    2012.10 - 2013.3   Second semester

  • 農学実験第一

    2012.10 - 2013.3   Second semester

  • 農業生物資源学特別実験

    2012.4 - 2013.3   Full year

  • 生物資源生産科学概要

    2012.4 - 2013.3   Full year

  • 農業生物資源学プロジェクト演習

    2012.4 - 2013.3   Full year

  • 蚕学演習

    2012.4 - 2013.3   Full year

  • 農業生物資源学特別研究第一

    2012.4 - 2013.3   Full year

  • 農業生物資源学特別研究第二

    2012.4 - 2013.3   Full year

  • 農業生物資源学特別講究

    2012.4 - 2013.3   Full year

  • 農業生物資源学特別演習

    2012.4 - 2013.3   Full year

  • 昆虫分子遺伝学

    2012.4 - 2012.9   First semester

  • Topics of Bioresources

    2012.4 - 2012.9   First semester

  • Geetics and Plant Breeding

    2012.4 - 2012.9   First semester

  • 分子生物学

    2012.4 - 2012.9   First semester

  • 昆虫機能利用学

    2012.4 - 2012.9   First semester

  • 農学実験第二

    2012.4 - 2012.9   First semester

  • 化学実験

    2012.4 - 2012.9   First semester

  • 分子生物学実験

    2012.4 - 2012.9   First semester

  • ゲノムサイエンスとエピジェネティクス

    2012.4 - 2012.9   First semester

  • トランスジェニック生物学概論

    2012.4 - 2012.9   First semester

  • 農学実験第三

    2011.10 - 2012.3   Second semester

  • 分子生物学概論

    2011.10 - 2012.3   Second semester

  • 遺伝学

    2011.10 - 2012.3   Second semester

  • 昆虫ゲノム科学

    2011.10 - 2012.3   Second semester

  • 農学実験第一

    2011.10 - 2012.3   Second semester

  • 農業生物資源学特別実験

    2011.4 - 2012.3   Full year

  • 生物資源生産科学概要

    2011.4 - 2012.3   Full year

  • 農業生物資源学プロジェクト演習

    2011.4 - 2012.3   Full year

  • 蚕学演習

    2011.4 - 2012.3   Full year

  • 農業生物資源学特別研究第一

    2011.4 - 2012.3   Full year

  • 農業生物資源学特別研究第二

    2011.4 - 2012.3   Full year

  • 農業生物資源学特別講究

    2011.4 - 2012.3   Full year

  • 農業生物資源学特別演習

    2011.4 - 2012.3   Full year

  • 昆虫分子遺伝学

    2011.4 - 2011.9   First semester

  • 分子生物学

    2011.4 - 2011.9   First semester

  • 昆虫機能利用学

    2011.4 - 2011.9   First semester

  • 農学実験第二

    2011.4 - 2011.9   First semester

  • 化学実験

    2011.4 - 2011.9   First semester

  • 分子生物学実験

    2011.4 - 2011.9   First semester

  • ゲノムサイエンスとエピジェネティクス

    2011.4 - 2011.9   First semester

  • トランスジェニック生物学概論

    2011.4 - 2011.9   First semester

  • 昆虫ゲノム科学

    2010.10 - 2011.3   Second semester

  • 遺伝学

    2010.10 - 2011.3   Second semester

  • 農学実験第一

    2010.10 - 2011.3   Second semester

  • 農学実験第三

    2010.10 - 2011.3   Second semester

  • 農業生物資源学プロジェクト演習

    2010.4 - 2011.3   Full year

  • 農業生物資源学特別研究第一

    2010.4 - 2011.3   Full year

  • 遺伝育種学特別研究第二

    2010.4 - 2011.3   Full year

  • 農業生物資源学特別講究

    2010.4 - 2011.3   Full year

  • 農業生物資源学特別演習

    2010.4 - 2011.3   Full year

  • 蚕学演習

    2010.4 - 2011.3   Full year

  • 昆虫機能利用学

    2010.4 - 2010.9   First semester

  • ゲノムサイエンスとエピジェネティクス

    2010.4 - 2010.9   First semester

  • トランスジェニック生物学概論

    2010.4 - 2010.9   First semester

  • 昆虫分子遺伝学

    2010.4 - 2010.9   First semester

  • 化学実験

    2010.4 - 2010.9   First semester

  • 農学実験第二

    2010.4 - 2010.9   First semester

  • 分子生物学実験

    2010.4 - 2010.9   First semester

  • 分子生物学

    2010.4 - 2010.9   First semester

  • 昆虫発生遺伝学

    2009.10 - 2010.3   Second semester

  • 遺伝学

    2009.10 - 2010.3   Second semester

  • 農学実験第一

    2009.10 - 2010.3   Second semester

  • 農学実験第三

    2009.10 - 2010.3   Second semester

  • 農業生物資源学特別実験

    2009.4 - 2010.3   Full year

  • 蚕学講究

    2009.4 - 2010.3   Full year

  • 蚕学演習第一

    2009.4 - 2010.3   Full year

  • 蚕学演習第二

    2009.4 - 2010.3   Full year

  • 蚕学講究演習

    2009.4 - 2010.3   Full year

  • 遺伝育種学特別研究第一

    2009.4 - 2010.3   Full year

  • 分子細胞生物学-理論と実際

    2009.4 - 2009.9   First semester

  • 分子生物学実験

    2009.4 - 2009.9   First semester

  • 化学実験

    2009.4 - 2009.9   First semester

  • 農学実験第二

    2009.4 - 2009.9   First semester

  • 分子生物学

    2009.4 - 2009.9   First semester

  • 昆虫機能利用学

    2009.4 - 2009.9   First semester

  • 昆虫発生遺伝学

    2008.10 - 2009.3   Second semester

  • 遺伝学

    2008.10 - 2009.3   Second semester

  • 農学実験第一

    2008.10 - 2009.3   Second semester

  • 農学実験第三

    2008.10 - 2009.3   Second semester

  • 昆虫生理学特論

    2008.10 - 2009.3   Second semester

  • 遺伝育種学特別研究第一

    2008.4 - 2009.3   Full year

  • 蚕学講究演習

    2008.4 - 2009.3   Full year

  • 蚕学演習第二

    2008.4 - 2009.3   Full year

  • 蚕学講究

    2008.4 - 2009.3   Full year

  • 蚕学演習第一

    2008.4 - 2009.3   Full year

  • 分子細胞生物学-理論と実際

    2008.4 - 2008.9   First semester

  • 分子生物学

    2008.4 - 2008.9   First semester

  • 分子生物学実験

    2008.4 - 2008.9   First semester

  • 化学実験

    2008.4 - 2008.9   First semester

  • 農学実験第二

    2008.4 - 2008.9   First semester

  • 遺伝学

    2007.10 - 2008.3   Second semester

  • 農学実験第三

    2007.10 - 2008.3   Second semester

  • 農学実験第一

    2007.10 - 2008.3   Second semester

  • 分子生物学実験

    2007.4 - 2007.9   First semester

  • 化学実験

    2007.4 - 2007.9   First semester

  • 農学実験第二

    2007.4 - 2007.9   First semester

  • 遺伝学

    2006.10 - 2007.3   Second semester

  • 農学実験第一

    2006.10 - 2007.3   Second semester

  • 農学実験第三

    2006.10 - 2007.3   Second semester

  • 分子生物学実験

    2006.4 - 2006.9   First semester

  • 農学実験第二

    2006.4 - 2006.9   First semester

  • 農学実験第一

    2005.10 - 2006.3   Second semester

  • 遺伝学

    2005.10 - 2006.3   Second semester

  • 農学実験第三

    2005.10 - 2006.3   Second semester

  • 農学実験第二

    2005.4 - 2005.9   First semester

  • 分子生物学実験

    2005.4 - 2005.9   First semester

  • 農学実験第三

    2004.10 - 2005.3   Second semester

  • 農学実験第一

    2004.10 - 2005.3   Second semester

  • 分子生物学実験

    2004.4 - 2004.9   First semester

  • 農学実験第二

    2004.4 - 2004.9   First semester

▼display all

FD Participation

  • 2010.1   Role:Participation   Title:九州大学全学シラバスの利用法について

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2009.10   Role:Participation   Title:セクシャル・ハラスメントとパワー・ハラスメントの現状と対策について

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2009.8   Role:Participation   Title:農学研究院部門組織再編の基本方針等について

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2009.4   Role:Participation   Title:GPA制度について

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2007.6   Role:Participation   Title:アカデミックハラスメント等の事例について

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2006.12   Role:Participation   Title:英語による特別コースについて

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2006.12   Role:Participation   Title:国立大学版BSCを活用した九州大学農学研究院のセルフマネジメントのしくみづくり

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2006.8   Role:Participation   Title:味の素における生産革命の展開

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2006.7   Role:Participation   Title:1)安全管理について 2)e-ラーニングについて

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2006.5   Role:Participation   Title:学生指導について

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2006.3   Role:Participation   Title:GPA (Grade Point Average) 制度について

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2005.7   Role:Participation   Title:法人評価と認証評価を踏まえた部局内自己評価の在り方につ

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2005.5   Role:Participation   Title:学生指導について

    Organizer:University-wide

  • 2004.7   Role:Participation   Title:「学生のメンタルヘルスに関する最近の話題ー健康談室 からー学生のメンタルヘルスに関する最近の話題ー健康談室 からー」

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2003.7   Role:Participation   Title:農学研究院FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2002.12   Role:Participation   Title:部局,参加,言語文化研究院との合同FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2002.1   Role:Participation   Title:不明

    Organizer:[Undergraduate school/graduate school/graduate faculty]

▼display all

Participation in international educational events, etc.

  • 2004.9

    不明

    日中家蚕研究中核機関学術検討会

      More details

    Venue:中国 重慶

    Number of participants:40

Outline of Social Contribution and International Cooperation activities

  • なし

Social Activities

  • 文部科学省 サイエンスサイエンスハイスクール

    福岡県立小倉高校  2011.8

     More details

    Audience:Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 文部科学省 サイエンスサイエンスハイスクール

    福岡県立小倉高校  2010.8

     More details

    Audience:Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 文部科学省 サイエンスサイエンスハイスクール

    福岡県立小倉高校  2009.8

     More details

    Audience:Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 文部科学省 サイエンスサイエンスハイスクール

    福岡県立小倉高校  2008.8

     More details

    Audience:Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 文部科学省 サイエンスサイエンスハイスクール

    福岡県立小倉高校  2007.8

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    Audience:Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 文部科学省 スーパーサイエンスハイスクール

    小倉高校  2006.8

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    Audience:Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 文部科学省 サイエンスパートナーシッププログラム 「21世紀バイオサイエンスへの扉」

    福岡高校  2006.8

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    Audience:Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 文部科学省サイエンスパートナーシッププログラム 実験指導

    福岡県立修猷館高等学校, 福岡高等学校、小倉高等学校  2005.8

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    Audience:Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 文部科学省スーパーサイエンスクラブ 実験指導

    福岡県立修猷館高等学校  2005.8

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    Audience:Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 文部科学省スーパーサイエンスクラブ 実験指導

    福岡県立修猷館高等学校  2005.1

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    Audience:Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 文部科学省スーパーサイエンスクラブ 実験指導

    福岡県立修猷館高等学校  2004.12

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    Audience:Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • カイコDNAの損傷修復 日下部 宜宏:平成16年文部科学省ナショナルバイオリソースプロジェクト「カイコ」公開シンポジュウム&ワークショプ

    平成16年文部科学省ナショナルバイオリソースプロジェクト「カイコ」  東京  2004.9

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

▼display all

Acceptance of Foreign Researchers, etc.

  • 九州大学農学研究院

    Acceptance period: 2014.4 - 2016.3   (Period):1 month or more

    Nationality:China

    Business entity:Japan Society for the Promotion of Science

  • 九州大学農学研究院

    Acceptance period: 2013.10 - 2015.9   (Period):1 month or more

    Nationality:China

    Business entity:Japan Society for the Promotion of Science

  • 九州大学農学研究院

    Acceptance period: 2012.10 - 2014.9   (Period):1 month or more

    Nationality:China

    Business entity:Japan Society for the Promotion of Science

  • 九州大学農学研究院

    Acceptance period: 2006.11 - 2010.12   (Period):1 month or more

    Nationality:Korea, Republic of

    Business entity:Government agency

Travel Abroad

  • 1995.3 - 1997.10

    Staying countory name 1:United States   Staying institution name 1:Harvard Medical School