Molecular Interaction and Energy Frustration Play Essential Roles in Polymorphic Supercoiling of Bacterial Flagellar Filament

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  • KITAO Akio
    Institute of Molecular and Cellular Biosciences, The University of Tokyo JST, CREST
  • IMADA Katsumi
    Graduate School of Frontier Biosciences, Osaka University Dynamic Nano Machine Project, ICORP, JST
  • NAMBA Keiichi
    Graduate School of Frontier Biosciences, Osaka University Dynamic Nano Machine Project, ICORP, JST

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Other Title
  • 細菌べん毛繊維は分子間相互作用とフラストレーションを利用して超らせん構造の変化を制御する
  • サイキン ベンモウ センイ ワ ブンシカン ソウゴ サヨウ ト フラストレーション オ リヨウシテ チョウラセン コウゾウ ノ ヘンカ オ セイギョスル

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Abstract

The bacterial flagellar filament controls the swimming mode of bacteria by its polymorphic structural change. We investigated dynamics of the flagellar filament by massive molecular dynamic simulation and found that three types of inter-molecular interactions, permanent, sliding and switch interactions, play essential roles in the structural change. The polymorphic structure of the flagellar filament is thought to be due to energy frustration between intra- and inter-molecular interactions.<br>

Journal

  • Seibutsu Butsuri

    Seibutsu Butsuri 48 (1), 011-017, 2008

    The Biophysical Society of Japan General Incorporated Association

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