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Cryo-EM structure modeling based on the multiple score analysis

Research Project

Project/Area Number 19K06532
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 43020:Structural biochemistry-related
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Mori Takaharu  国立研究開発法人理化学研究所, 開拓研究本部, 専任研究員 (90402445)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywordsクライオ電顕 / タンパク質 / 分子動力学計算 / 立体構造予測 / シミュレーション / 分子動力学法
Outline of Research at the Start

本研究では、クライオ電子顕微鏡によって得られたタンパク質の近原子解像度の電顕像から、精密な全体構造をモデリングするための新しい方法論を開発する。従来のモデリング法を改良することで、これまで困難であったタンパク質中の揺らぎの大きい部分の精密な構造決定を実現し、正確なタンパク質機能の理解へつなげることを目指す。

Outline of Final Research Achievements

In this study, we developed the SAUA-FFR method for efficient modeling of protein 3D structures from experimental data obtained by single-particle analysis using cryo-EM. Compared to conventional methods, this method more accurately reproduces the secondary structure of a protein and enables the selection of a protein-like structure from among candidate structural models. The method is implemented in the molecular dynamics software GENESIS and is available free of charge. An easy-to-understand tutorial on this method is also available on the GENESIS website.

Academic Significance and Societal Importance of the Research Achievements

蛋白質科学を医学あるいは薬学に応用するためには、タンパク質の構造と機能を正しく理解する必要がある。そのためには、タンパク質の立体構造を実験データから精密にモデリングする必要がある。現在の構造生物学において、単粒子解析を用いたタンパク質の立体構造モデリングは世界的に広く行われているが、得られた構造の妥当性の検証法、あるいは妥当な構造を選ぶ方法論の開発は未だ不十分である。本研究で開発したプロトコルは、合理的に妥当な構造モデルを選ぶ方法でもあり、本研究は蛋白質科学の発展に大きく貢献したと考えている。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (16 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 4 results) Presentation (8 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Int'l Joint Research] パデュー大学(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] パデュー大学(米国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] The inherent flexibility of receptor binding domains in SARS-CoV-2 spike protein2022

    • Author(s)
      Dokainish Hisham M、Re Suyong、Mori Takaharu、Kobayashi Chigusa、Jung Jaewoon、Sugita Yuji
    • Journal Title

      eLife

      Volume: 11

    • DOI

      10.7554/elife.75720

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Weight average approaches for predicting dynamical properties of biomolecules2022

    • Author(s)
      Yagi Kiyoshi、Re Suyong、Mori Takaharu、Sugita Yuji
    • Journal Title

      Current Opinion in Structural Biology

      Volume: 72 Pages: 88-94

    • DOI

      10.1016/j.sbi.2021.08.008

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Efficient Flexible Fitting Refinement with Automatic Error Fixing for De Novo Structure Modeling from Cryo-EM Density Maps2021

    • Author(s)
      Mori Takaharu、Terashi Genki、Matsuoka Daisuke、Kihara Daisuke、Sugita Yuji
    • Journal Title

      Journal of Chemical Information and Modeling

      Volume: 61 Issue: 7 Pages: 3516-3528

    • DOI

      10.1021/acs.jcim.1c00230

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Elucidation of interactions regulating conformational stability and dynamics of SARS-CoV-2 S-protein2021

    • Author(s)
      Mori Takaharu、Jung Jaewoon、Kobayashi Chigusa、Dokainish Hisham M.、Re Suyong、Sugita Yuji
    • Journal Title

      Biophysical Journal

      Volume: 120 Issue: 6 Pages: 1060-1071

    • DOI

      10.1016/j.bpj.2021.01.012

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Atg9 is a lipid scramblase that mediates autophagosomal membrane expansion2020

    • Author(s)
      Matoba Kazuaki、Kotani Tetsuya、Tsutsumi Akihisa、Tsuji Takuma、Mori Takaharu、Noshiro Daisuke、Sugita Yuji、Nomura Norimichi、Iwata So、Ohsumi Yoshinori、Fujimoto Toyoshi、Nakatogawa Hitoshi、Kikkawa Masahide、Noda Nobuo N.
    • Journal Title

      Nature Structural & Molecular Biology

      Volume: 27 Issue: 12 Pages: 1185-1193

    • DOI

      10.1038/s41594-020-00518-w

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Overview of the “1SBA: Integrative approaches towards understanding of gene expression” session at the 57th BSJ meeting2020

    • Author(s)
      Takaharu Mori and Shun-ichi Sekine
    • Journal Title

      Biophysical Reviews

      Volume: - Issue: 2 Pages: 253-254

    • DOI

      10.1007/s12551-020-00644-1

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Cryo-EM flexible fitting refinement with automatic error fixing for de novo protein structure modeling2021

    • Author(s)
      森貴治、寺師玄記、松岳大輔、木原大亮、杉田有治
    • Organizer
      第59回日本生物物理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高速クライオ電顕フィッティング法の開発と応用2020

    • Author(s)
      森貴治
    • Organizer
      CBI学会2020年大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Improved Structure Refinement in MAINMAST for de novo Modeling from Cryo-EM Maps2020

    • Author(s)
      森貴治、寺師玄記、松岳大輔、木原大亮、杉田有治
    • Organizer
      第20回日本蛋白質科学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] オートファゴソーム形成に関与する膜タンパク質 Atg9 の膜中配向予測2020

    • Author(s)
      森貴治、的場一晃、野田展生、杉田有治
    • Organizer
      第34回分子シミュレーション討論会
    • Related Report
      2020 Research-status Report
  • [Presentation] Modeling complex biological systems2019

    • Author(s)
      Takaharu Mori
    • Organizer
      Workshop on molecular dynamics based binding free energy calculations, post-processing of trajectories and force field development
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Dynamic structures of the RNA polymerase II elongation complex by cryo-EM and MD approaches2019

    • Author(s)
      森貴治、江原晴彦、 関根俊一、杉田有治
    • Organizer
      第57回 日本生物物理学会年会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Dynamic structures of RNA polymerase II revealed by cryo-EM and MD approaches2019

    • Author(s)
      森貴治、江原晴彦、 関根俊一、杉田有治
    • Organizer
      第19回日本蛋白質科学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] GENESIS 1.4 の開発と生体分子系への応用2019

    • Author(s)
      森貴治、八木清、尾嶋拓、Jaewoon Jung、小林千草、松永康佑
    • Organizer
      スーパーコンピュータワークショップ2019
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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