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2010 Fiscal Year Self-evaluation Report

Functional Funnel of Molecular Motors

Research Project

  • PDF
Project/Area Number 20244068
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Biophysics/Chemical physics
Research InstitutionNagoya University

Principal Investigator

SASAI Masaki  Nagoya University, 工学研究科, 教授 (30178628)

Project Period (FY) 2008 – 2011
Keywords分子モーター / 粗視化モデル / アロステリック変形
Research Abstract

ミオシンなどの分子モーターは、負荷の強弱に柔軟に応答して常温で効率よく動作する、人間のつくるエンジンを超えた能力を持つ優れたモーターである。本研究は、次の目的・内容を持つ。
(1)蛋白質が大きく柔らかく動く姿を捉える新しい粗視化モデル、およびアロステリック変形の基礎理論を展開して、強い熱揺らぎに曝されているにもかかわらず高機能を発揮する、分子モーターの物理的原理を明らかにする。
(2)生理的に重要なミリ秒以上にわたる過程に焦点をあてた計算機シミュレーションを実行する。
(3)分子モーターの動作を説明する機能ファネル仮説を提唱して、これを批判的に検証する。

  • Research Products

    (10 results)

All 2011 2010 2009 2008

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (3 results) Book (3 results)

  • [Journal Article] Statistical mechanics of protein allostery : Free energy surface and conformational transitions2011

    • Author(s)
      K. Itoh, M. Sasai
    • Journal Title

      J.Chem.Phys 134

      Pages: 125102_1-125102_18

    • Peer Reviewed
  • [Journal Article] Unidirectional Brownian motion observed in an In silica single molecule experiment of an actomyosin motor2010

    • Author(s)
      M. Takano, T. P. Terada, M. Sasai
    • Journal Title

      Proc.Natl.Acad.Sci.USA 107

      Pages: 7769-7774

    • Peer Reviewed
  • [Journal Article] Entropic mechanism of large fluctuation in allosteric transition2010

    • Author(s)
      K. itoh, M. Sasai
    • Journal Title

      Proc.Natl.Acad.Sci.USA 107

      Pages: 7775-7780

    • Peer Reviewed
  • [Journal Article] Cooperativity, connectivity, and folding pathways of multidomain proteins2008

    • Author(s)
      K. Itch, M. Sasai
    • Journal Title

      Proc.Natl.Acad.Sci.USA 105

      Pages: 3865-13870

    • Peer Reviewed
  • [Presentation] Statistical mechanics of protein allostery : roles of back-bone and side-chain fluctuations2010

    • Author(s)
      M. Sasai
    • Organizer
      10th KIAS Conference on Protein Structure and Function
    • Place of Presentation
      Korea Institute for Advanced Study, Seoul, Korea
    • Year and Date
      2010-10-01
  • [Presentation] Synchronization and Noise in a Protein-Based Circadian Oscillator2010

    • Author(s)
      M. Sasai
    • Organizer
      Biological Networks-Principles and Dynamics
    • Place of Presentation
      Kavli Institute for Theoretical Physics China, Beijing, China
    • Year and Date
      2010-07-29
  • [Presentation] Unidirectional Brownian motion observed in an in silica single molecule experiment of an actomyosin motor, Single molecule experiments and theories2009

    • Author(s)
      M. Sasai
    • Organizer
      International Workshop on Single Molecule Dynamics and Spectroscopy
    • Place of Presentation
      Chung-Ang University, Seoul, Korea
    • Year and Date
      2009-10-07
  • [Book] 超多自巾度系の新しい科学2010

    • Author(s)
      笹井理生, 伊藤一仁, 佐々木尚
    • Total Pages
      181-216
    • Publisher
      共立出版
  • [Book] 超多自由度系の新しい科学2010

    • Author(s)
      笹井理生
    • Total Pages
      9-18
    • Publisher
      共立出版
  • [Book] 蛋白質の柔らかなダイナミクス2008

    • Author(s)
      笹井理生
    • Total Pages
      1-192
    • Publisher
      培風館

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Published: 2012-02-13   Modified: 2016-04-21  

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