• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Theoretical Study on molecular mechanisms of functional processes of biological molecules

Research Project

Project/Area Number 19H03195
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 43040:Biophysics-related
Research InstitutionKyoto University

Principal Investigator

Hayashi Shigehiko  京都大学, 理学研究科, 教授 (70402758)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2021: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2020: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2019: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Keywords分子シミュレーション / ハイブリッド法 / ロドプシン光受容体 / リボザイム / 薬剤耐性 / 酸化還元タンパク質 / 光受容体チャネル / 生体分子機能 / 分子進化 / チャネルロドプシン / イオンポンプ / QM/MM 法 / MD シミュレーション
Outline of Research at the Start

多くの機能性タンパク質は、複数の化学現象を相関させる機能共役性と、進化における突然変異による機能の多様化を可能にする機能可変性を有する。これらの顕著な性質は、タンパク質分子に特徴的な分子構造ダイナミクスに大きく関係している。そこで、機能に関わる化学反応過程とタンパク質の大域的構造変化の相関を直接解析することが出来る独自の分子シミュレーションの手法を用いて、光遺伝学で用いられる光感受性イオン輸送体タンパク質と指向性進化実験で作られたホモログ酵素の間の機能変換、及びタンパク質酵素との比較を与えるリボザイムの酵素活性に関する理論的解析を行い、分子進化や酵素の新機能開発に向けた原子レベルの理解を得る。

Outline of Final Research Achievements

We performed theoretical studies on molecular mechanisms of functional coupling and variability of the following five biomolecular systems: (1) photo-activation of a photo-sensitive ion channel transporter, microbial rhodopsin GtACR1, (2) photo-activation of a photo-sensitive ion pump transporter, microbial rhodopsin NpHR, (3) Enzymatic catalysis of hammerhead ribozyme, (4) drug-resistance of HIV-protease, and (5) redox process of cytochrome c.

Academic Significance and Societal Importance of the Research Achievements

タンパク質や核酸などの生体高分子は顕著な分子機能を有する。特に顕著な分子機能性は、共役性と可変性である。多くの機能性タンパク質分子は、複数の化学現象を相関させる共役性を有する。このような機能共役性の解明は、そのタンパク質が関わる疾病に対する治療薬開発の幅を大きく拡げると共に、新規な機能性分子の設計指針の構築に大きく寄与をする。また、機能可変性の解明は、薬剤耐性への解決に重要となるのみならず、機能変換をもたらすアミノ酸変異の効率的な探索が重要となるタンパク質工学による機能性タンパク質分子ツールの開発に重要な指針を与える。

Report

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

    (25 results)

All 2022 2021 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (21 results) (of which Int'l Joint Research: 7 results,  Invited: 10 results)

  • [Journal Article] Hybrid QM/MM Free-Energy Evaluation of Drug-Resistant Mutational Effect on the Binding of an Inhibitor Indinavir to HIV-1 Protease2022

    • Author(s)
      Taguchi Masahiko、Oyama Ryo、Kaneso Masahiro、Hayashi Shigehiko
    • Journal Title

      Journal of Chemical Information and Modeling

      Volume: 62 Issue: 5 Pages: 1328-1344

    • DOI

      10.1021/acs.jcim.1c01193

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ab Initio Evaluation of the Redox Potential of Cytochrome c2021

    • Author(s)
      Cheng Cheng, Hayashi Shigehiko
    • Journal Title

      Journal of Chemical Theory and Computation

      Volume: 17 Issue: 2 Pages: 1194-1207

    • DOI

      10.1021/acs.jctc.0c00889

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A computational method to simulate global conformational changes of proteins induced by cosolvent2021

    • Author(s)
      Tanimoto Shoichi、Tamura Koichi、Hayashi Shigehiko、Yoshida Norio、Nakano Haruyuki
    • Journal Title

      Journal of Computational Chemistry

      Volume: 42 Issue: 8 Pages: 552-563

    • DOI

      10.1002/jcc.26481

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Time-resolved serial femtosecond crystallography reveals early structural changes in channelrhodopsin2021

    • Author(s)
      Oda Kazumasa、Nomura Takashi、Nakane Takanori、Yamashita Keitaro、Inoue Keiichi、Ito Shota、Vierock Johannes、Hirata Kunio、Maturana Andres D、Katayama Kota、( 32 authers )、Kandori Hideki、Hegemann Peter、Iwata So、Kubo Minoru、Nishizawa Tomohiro、Nureki Osamu
    • Journal Title

      eLife

      Volume: 10 Pages: 1-21

    • DOI

      10.7554/elife.62389

    • NAID

      120006996980

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] イクオリンの生物発光過程についての理論的研究2022

    • Author(s)
      安東智大, 林重彦
    • Organizer
      日本化学会第102春季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 分子シミュレーションによるタンパク質分子機能活性化の理論的解明2022

    • Author(s)
      林 重彦
    • Organizer
      自然科学研究機構・岡崎共通研究施設・計算科学研究センター・スーパーコンピュータワークショップ2021「生体分子の構造・機能・デザインの計算科学」
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Atomistically deciphering functional processes of transporter proteins with molecular simulations2021

    • Author(s)
      Shigehiko Hayashi
    • Organizer
      Pacifichem2021 Symposium “Crossing the Biological Membrane: Frontiers in the Computational Study of Membrane Transport”
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Theoretical study on ion conduction of natural anion channel rhodopsin GtACR12021

    • Author(s)
      Takafumi Shikakura, Cheng Cheng, Shigehiko Hayashi
    • Organizer
      第59回日本生物物理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 分子シミュレーションによるタンパク質分子機能活性化の解明2021

    • Author(s)
      林 重彦
    • Organizer
      第21回日本蛋白質科学会・ワークショップ「高速分子動画:タンパク質の構造機能相関研究の最先端」
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Atomistically Deciphering Functional Activation Processes of Proteins with Molecular Simulations2020

    • Author(s)
      Shigehiko Hayashi
    • Organizer
      第58回日本生物物理学会年会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Free Energy Calculations of HIV-1 Protease Binding Indinavir and Its Drug-Resistant Mutant2020

    • Author(s)
      Masahiko Taguchi, Ryo Oyama, Masahiro Kaneso, Shigehiko Hayashi
    • Organizer
      第58回日本生物物理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Theoretical study on molecular mechanics of natural anion channel rhodopsin GtACR12020

    • Author(s)
      Takafumi Shikakura, Cheng Cheng, Shigehiko Hayashi
    • Organizer
      第58回日本生物物理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Theoretical study on molecular mechanism of a light-driven ion transport of Halorhodopsin2020

    • Author(s)
      Ryo Oyama, Taisuke Hasegawa, Shigehiko Hayashi
    • Organizer
      第58回日本生物物理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Atomistically deciphering functional processes of photoreceptor membrane proteins with molecular simulations2019

    • Author(s)
      Shigehiko Hayashi
    • Organizer
      第19回日本蛋白質科学会年会・第71回日本細胞生物学会大会 合同年次大会 共催シンポジウム「最先端の実験科学と計算科学が明らかにする膜タンパク質の精緻な反応機構」
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Atomistically deciphering functional processes of transporter and redox proteins with molecular simulations2019

    • Author(s)
      Shigehiko Hayashi
    • Organizer
      Telluride Science Research Center Workshop on “Protein Dynamics”
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Atomistically deciphering functional processes of photoreceptor proteins with molecular simulations2019

    • Author(s)
      Shigehiko Hayashi
    • Organizer
      Frontiers in Multiscale Modelling of Photoreceptor Proteins
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Photoactivation Intermediate of AsLOV2 Photoreceptor Protein Investigated by a Hybrid Molecular Simulation2019

    • Author(s)
      Masahiko Taguchi, Ryo Oyama, Masahiro Kaneso, Shigehiko Hayashi
    • Organizer
      第57回生物物理学会年会シンポジウム「ポスト「京」始動を見据えた計算創薬の新展開」
    • Related Report
      2019 Annual Research Report
  • [Presentation] Theoretical study on an enzymatic reaction of the hammerhead ribozyme2019

    • Author(s)
      Ayaka Matsuyama, Masahiko Taguchi, Shigehiko Hayashi
    • Organizer
      第57回生物物理学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Theoretical study on molecular mechanics of natural anion channelrhodopsin GtACR12019

    • Author(s)
      Takafumi Shikakura, Cheng Cheng, Shigehiko Hayashi
    • Organizer
      第57回生物物理学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] An ab initio method of evaluating redox potential for metalloprotein2019

    • Author(s)
      Cheng Cheng, Shigehiko Hayashi
    • Organizer
      第57回生物物理学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Theoretical study on molecular mechanism of a light-driven ion transport of Halorhodopsin from Natronomonas pharaonis2019

    • Author(s)
      Ryo Oyama, Taisuke Hasegawa, Shigehiko Hayashi
    • Organizer
      第57回日本生物物理学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Atomistically deciphering functional processes of photoreceptor and redox proteins with molecular simulations2019

    • Author(s)
      Shigehiko Hayashi
    • Organizer
      Ninth Conference of the Asia-Pacific Association of the Theoretical and Computational Chemists (APATCC2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Atomistically deciphering functional processes of photoreceptor and redox proteins with hybrid molecular simulations2019

    • Author(s)
      Shigehiko Hayashi
    • Organizer
      Indo-Japan Workshop Frontiers in Molecular Spectroscopy: From Fundamentals to Applications in Chemistry and Biology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Atomistically deciphering functional processes of transporter and redox proteins with molecular simulations2019

    • Author(s)
      Shigehiko Hayashi
    • Organizer
      5th International Conference on Molecular Simulation (ICMS 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Atomistically Deciphering Redox Processes of Metalloproteins with Hybrid Molecular Simulations2019

    • Author(s)
      Shigehiko Hayashi
    • Organizer
      3rd International Solar Fuels Conference (ISF-3) International Conference on Artificial Photosynthesis-2019 (ICARP2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi