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Development of "Super"Anti-CRISPR molecules

Research Project

Project/Area Number 20K21253
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 37:Biomolecular chemistry and related fields
Research InstitutionHiroshima University

Principal Investigator

Nomura Wataru  広島大学, 医系科学研究科(薬), 教授 (80463909)

Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsゲノム編集 / CRISPR-Cas / アンチクリスパー / オフターゲット作用 / タンパク質間相互作用
Outline of Research at the Start

CRISPR-Casファミリーが由来する微生物・細菌のゲノムを探索することでそれぞれに対応するAnti-CRISPR分子が存在する。現在、SpCas9以外に実用化に向けて開発が進んでいる候補としてSaCas9、Cas12a(Cpf1)、NmCas9が挙げられるため、これらのCRISPR-Casファミリーに対して共通に働くAnti-CRISPR分子、また、各々に対して既存のAnti-CRISPR分子よりもより高活性に阻害する分子、を見出す。既知Anti-CRISPR分子の配列データベースを取り込み、機械学習・AI技術を利用し、配列的特徴を抽出した代表配列を得て、評価を行う。

Outline of Final Research Achievements

Although the CRISPR-Cas9 system is a useful tool for genome editing technology, there is also a need for the industrialization of technology that also utilizes anti-CRISPR molecules that can control Cas9 activity. In this study, we evaluated the activity of various anti-CRISPR molecules in order to identify widely active anti-CRISPR molecules, and analyzed the usefulness of three anti-CRISPR molecules, AcrIIA4/IIA5/IIA6, in cell cycle-dependent genome editing against SpCas9. We also analyzed the expression of AcrIIA1-IIA6 and IIA11 as anti-CRISPR against SaCas9, which has a smaller molecular weight than SpCas9, and obtained important insights into their application for in vivo genome editing.

Academic Significance and Societal Importance of the Research Achievements

Anti-CRISPRにはCas9の活性阻害作用だけではなく、積極的にCas9の機能を制御するという活用方法も見出されてきており、世界に先駆けて取り組むべき研究である。それは、ゲノム編集技術に対する評価は高く、期待する声も多いが、一方でその高い利便性によってバイオテロ他、危険な利用を危惧する見方もあり規制が求められているためである。本研究でAnti-CRISPR活性の評価方法を確立したことは、広い阻害スペクトルを持つ”Super”Anti-CRISPRの創製、またそのワクチンとしての将来的な活用などにつながる第一歩となる成果である。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (13 results)

All 2022 2021 2020 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 1 results,  Invited: 5 results) Remarks (1 results)

  • [Journal Article] Molecular Switch Engineering for Precise Genome Editing2021

    • Author(s)
      Daisuke Matsumoto, Wataru Nomura
    • Journal Title

      Bioconjugate Chemistry

      Volume: 32 Issue: 4 Pages: 639-648

    • DOI

      10.1021/acs.bioconjchem.1c00088

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fluorescence Resonance Energy Transfer-based Screening for Protein Kinase C Ligands Using 6-methoxynaphthalene-labeled 1,2-diacylglycerol-lactones2021

    • Author(s)
      Kohei Tsuji, Takahiro Ishii, Takuya Kobayakawa, Nami Ohashi, Wataru Nomura, Hirokazu Tamamura
    • Journal Title

      Organic & Biomolecular Chemistry

      Volume: 19 Issue: 38 Pages: 8264-8271

    • DOI

      10.1039/d1ob00814e

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Discovery of a Macropinocytosis‐Inducing Peptide Potentiated by Medium‐Mediated Intramolecular Disulfide Formation2021

    • Author(s)
      Jan Vincent V. Arafiles, Hisaaki Hirose, Yusuke Hirai, Masashi Kuriyama, Maxwell M. Sakyiamah, Wataru Nomura, Kazuhiro Sonomura, Miki Imanishi, Akira Otaka, Hirokazu Tamamura, Shiroh Futaki
    • Journal Title

      Angewandte Chemie, International Edition

      Volume: 60 Issue: 21 Pages: 2-11

    • DOI

      10.1002/anie.202016754

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Cell Cycle-dependent CRISPR-Cas9 Activation System Based on an Anti-CRISPR Protein Shows Improved Genome Editing Accuracy2020

    • Author(s)
      Daisuke Matsumoto, Hirokazu Tamamura, Wataru Nomura
    • Journal Title

      Communications Biology

      Volume: 3 Issue: 1 Pages: 601-601

    • DOI

      10.1038/s42003-020-01340-2

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Synthesis of Hydrophilic Caged DAG-lactone for Chemical Biology Applications2020

    • Author(s)
      Takuya Kobayakawa, Hikaru Takano, Takahiro Ishii, Kohei Tsuji, Nami Ohashi, Wataru Nomura, Toshiaki Furuta, Hirokazu Tamamura
    • Journal Title

      Organic & Biomolecular Chemistry

      Volume: 18 Issue: 22 Pages: 4217-4223

    • DOI

      10.1039/d0ob00807a

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] CRISPRaを用いた自律制御型ゲノム編集におけるAnti-CRISPR作用の解析2022

    • Author(s)
      岸 果苗、濁川 清美、長谷川 有希、松本 大亮、野村 渉
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] アミノ酸のつながったモノとゲノムを眺めて2021

    • Author(s)
      野村 渉
    • Organizer
      第53回若手ペプチド勉強会 特別講演
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 機能性ドメインのゲノム編集への応用2021

    • Author(s)
      野村 渉
    • Organizer
      第94回日本生化学会大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] CRISPR-Cas/TALEN-based tools for precision genome editing and gene regulation2021

    • Author(s)
      Wataru Nomura
    • Organizer
      Pacifichem 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Endogenous Protein Expression Imaging by Fluorogenic ZIP Tag-probe System2020

    • Author(s)
      Wataru Nomura, Takumi Kamimura, Takuya Kobayakawa, Hirokazu Tamamura
    • Organizer
      第57回ペプチド討論会
    • Related Report
      2020 Research-status Report
  • [Presentation] ノーベル賞解説講演・”ゲノム編集”その概念と技術革命2020

    • Author(s)
      野村 渉
    • Organizer
      第10回CSJ化学フェスタ
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] テイラーメードタンパク質による精密、安全なゲノム編集・機能制御技術2020

    • Author(s)
      野村 渉
    • Organizer
      第93回日本生化学会大会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Remarks] 広島大学大学院医系科学研究科 創薬標的分子科学研究室 webページ

    • URL

      https://nomulab.hiroshima-u.ac.jp/publications

    • Related Report
      2021 Annual Research Report

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Published: 2020-08-03   Modified: 2023-01-30  

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