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Design of novel insecticide by X-ray structure

Research Project

Project/Area Number 17K19272
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Agricultural and Environmental Biology and related fields
Research InstitutionKyushu University

Principal Investigator

Yamamoto Koji  九州大学, 農学研究院, 助教 (00346834)

Co-Investigator(Kenkyū-buntansha) 山田 直隆  九州大学, 農学研究院, 助教 (20304769)
Project Period (FY) 2017-06-30 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsグルタチオン転移酵素 / X線結晶構造解析 / 有機リン剤
Outline of Final Research Achievements

Previously, we identified an unclassified glutathione S-transferase 2 (GSTU2) in the silkworm Bombyx mori, a model for lepidopteran insect. In this study, we provide a structural and genome-editing characterisation of the GSTU2. The X-ray structure of GSTU2 was determined at 1.68 Å by X-ray crystallography. Mutation of putative amino acid residues in the substrate-binding site revealed that Pro13, Tyr107, Ile118, Phe119, and Phe211 are important for enzymatic function. Knock-out of GSTU2 gene influenced on median lethal dose values to an organophosphate insecticide and a decrease in acetylcholine levels in silkworms. The results suggest that GSTU2 may play an essential role in metabolism for an organophosphate insecticide.

Academic Significance and Societal Importance of the Research Achievements

ゲノム編集技術によりGSTU2ノックアウトカイコの作製に成功した。野生型カイコと比較した際、得られたノックアウトカイコにおいて、有機リン剤(ダイアジノン)に対するLD50値の低下が観察された。これは、当該ノックアウトカイコ体内において、GSTU2によりダイアジノンが代謝されないためにLD50値低下がおこったものと推察された。また、当該ノックアウトカイコ体内においてアセチルコリン量が増加していることが明らかとなった。ノックアウトカイコ中、GSTU2はアセチルコリンエステラーゼへ不可逆的に結合し、アセチルコリンエステラーゼはアセチルコリンを代謝できない機能不全に陥っていることが示唆された。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (18 results)

All 2020 2019 2018 2017

All Journal Article (11 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 11 results) Presentation (6 results) (of which Int'l Joint Research: 2 results) Book (1 results)

  • [Journal Article] A defective prostaglandin E synthase could affect egg formation in the silkworm Bombyx mori2020

    • Author(s)
      Yamamoto K, Tsubota T, Uno T, Tsujita Y, Yokota S, Sezutsu S, Mita K.
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 521 Pages: 347-352

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Functional analysis of an epsilon-class glutathione S-transferase from Nilaparvata lugens2019

    • Author(s)
      Saruta F, Yamada N, Yamamoto K.
    • Journal Title

      Journal of Insect Science

      Volume: 19 Pages: 1-7

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An omega-class glutathione S-transferase in the brown planthopper Nilaparvata lugens exhibits glutathione transferase and dehydroascorbate reductase activities2019

    • Author(s)
      Saruta F, Yamada N, Yamamoto K.
    • Journal Title

      Archives of Insect Biochemistry & Physiology

      Volume: 102

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Serine hydroxymethyltransferase from the silkworm Bombyx mori: Identification, distribution, and biochemical characterization2019

    • Author(s)
      Haque MR, Hirowatari A, Nai N, Furuya S, Yamamoto K.
    • Journal Title

      Archives of Insect Biochemistry & Physiology

      Volume: 102

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Molecular survey of the phosphoserine phosphatase involved in L-serine synthesis by silkworms (Bombyx mori)2019

    • Author(s)
      Haque MR, Hirowatari A, Saruta F, Furuya S, Yamamoto K.
    • Journal Title

      Insect Molecular Biology

      Volume: 29 Pages: 48-55

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Molecular structure of a 5,10-methylenetetrahydrofolate dehydrogenase from the silkworm Bombyx mori2019

    • Author(s)
      Mohammad R. Haque, Akifumi Higashiura, Atsushi Nakagawa, Aiko Hirowatari, Shigeki Furuya, and Kohji Yamamoto
    • Journal Title

      FEBS Open Bio

      Volume: 9 Pages: 618-628

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Identification and expression analysis of the replication factor C protein in the silkworm, Bombyx mori2019

    • Author(s)
      Yamamoto K, Haque M. R. , Saruta F.
    • Journal Title

      Journal of Insect Biotechnology and Sericology

      Volume: 88 Pages: 17-20

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Characterisation of a diazinon-metabolising glutathione S-transferase in the silkworm Bombyx mori by X-ray crystallography and genome editing analysis2018

    • Author(s)
      Yamamoto K, Higashiura A, Hirowatari A, Yamada N, Tsubota T, Sezutsu H, Nakagawa A
    • Journal Title

      Scientific reports

      Volume: 8 Pages: 16835-16835

    • NAID

      120006770877

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Wide distribution of a major East Asian noctuid pest explained by genomic adaptation to polyphagy and insecticides2017

    • Author(s)
      Cheng T., Wu J., Wu Y., Chilukuri R., Huang L., Yamamoto K., et al, Arunkumar A., Kishino H., Goldsmith M., Feng Q., Xia Q., and Mita K.
    • Journal Title

      Nature Ecology & Evolution

      Volume: 1 Pages: 1747-1756

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Molecular structure of a prostaglandin D synthase requiring glutathione from the brown planthopper, Nilaparvata lugens2017

    • Author(s)
      Yamamoto K., Higashiura A., Suzuki M., Aritake K., Urade Y., Nakagawa A.
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 492 Pages: 166-171

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Localization of an Aldo-Keto Reductase (AKR2E4) in the Silkworm Bomber mori (Lepidoptera: Bombycidae)2017

    • Author(s)
      Yamamoto K., Ozakiya Y., Uno T.
    • Journal Title

      Journal of insect science

      Volume: 17 Pages: 1-3

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Molecular characterization and expression analysis of a phosphoserine aminotransferase involving L-serine synthesis from silkworm, Bombyx mori2019

    • Author(s)
      Haque MR, Hirowatari A, Koyanagi A, Ichinose T, Abiru M, Mohri S, Furuya S. and Yamamoto K.
    • Organizer
      化学関連支部合同大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] プロスタグランジンEのカイコ・コリオン遺伝子発現に与える影響2019

    • Author(s)
      広渡愛子・坪田拓也・宇野知秀・瀬筒秀樹・山本幸治
    • Organizer
      平成31年度蚕糸・昆虫機能利用学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] カイコガオス生殖腺分泌物に含まれるSuperoxide dismutase (SOD) の存在2019

    • Author(s)
      長岡純治、山本幸治
    • Organizer
      平成31年度蚕糸・昆虫機能利用学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] Identification and characterization of the serine hydroxymethyl transferase from silkworm, Bombyx mori2018

    • Author(s)
      Md. Rezwanul Haque, Nonoko Nai, Aiko Hirowatari, Shigeki Furuya, and Kohji Yamamoto
    • Organizer
      第55回化学関連支部合同九州大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Identification and characterization of a novel AKR from the silkworm, Bombyx mori2018

    • Author(s)
      Kohji Yamamoto, David K. Wilson
    • Organizer
      Carbonyl conference 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Identification and characterization of the 5, 10- Methylene- tetrahydrofolate dehydrogenase from silkworm (Bombyx mori)2017

    • Author(s)
      Md. Rezwanul Haque, Aiko Hirowatari, Shigeki Furuya, Kohji Yamamoto
    • Organizer
      2017 AFELiSA
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Book] 「カイコの実験単」実験82019

    • Author(s)
      山本幸治
    • Total Pages
      6
    • Publisher
      朝倉出版
    • Related Report
      2019 Annual Research Report

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Published: 2017-07-21   Modified: 2021-02-19  

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