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Investigating the structural change mechanism commonly underlying over the ATPase family

Research Project

Project/Area Number 26840051
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Biophysics
Research InstitutionYokohama City University

Principal Investigator

Ito Yuko  横浜市立大学, 生命医科学研究科, 特任助教 (00608698)

Research Collaborator MASAIKE Tomoko  東京理科大学, 理学部応用生物科学科, 講師 (60406882)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords分子動力学計算 / F1-ATPase / ATPaseファミリー / 構造変化 / 理論と実験による共同研究
Outline of Final Research Achievements

Enzymes of the ATPase family accomplish various functions using ATP hydrolysis energy, which is widely used in all living organisms. All proteins including this important ATPase, proceed their own reaction (function) along with the structural change. So as to understand the ATPase mechanism commonly underlying over ATPase family, the structural change of ATPase were investigated. The structural change of ATPase comprises the three different conformational changes: by ATP binding, by ATP hydrolysis, and by product release. To obtain the whole mechanism, all the steps need to be clarified. The beta subunit of F1-ATPase which has been studied extensively, was selected as representation of the ATPase family protein. Using the MD simulations, all the steps of the conformational change in the beta subunit were revealed. The mechanism obtained here was compared with that of other ATPases.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (8 results)

All 2017 2016 2015 2014

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results,  Acknowledgement Compliant: 2 results) Presentation (3 results) (of which Invited: 2 results) Book (3 results)

  • [Journal Article] Dissection of the angle of single fluorophore attached to the nucleotide in corkscrewing microtubules2017

    • Author(s)
      Fujimura, S. Ito, Y. Ikeguchi, M. Adachi, K. Yajima, J. Nishizaka, T.
    • Journal Title

      Biochem Biophys Res Commun

      Volume: 485 Issue: 3 Pages: 614-620

    • DOI

      10.1016/j.bbrc.2017.01.165

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] The Mechanism of the ab (alpha beta) Conformational Change in F1-ATPase After the ATP Hydrolysis: Free-energy Simulation2015

    • Author(s)
      Yuko Ito, Mitsunori Ikeguchi
    • Journal Title

      Biophysical Journal

      Volume: 108 Issue: 1 Pages: 85-97

    • DOI

      10.1016/j.bpj.2014.11.1853

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 1分子観察とドッキングシミュレーションで蛍光基質を通じて明らかになった化学反応に伴う酵素の構造変化2016

    • Author(s)
      三上 渚, 伊藤 祐子, 須河 光弘 , 池口 満徳 , 西坂 崇之
    • Organizer
      生物物理学会
    • Place of Presentation
      つくば国際会議場 (茨城県, つくば市)
    • Year and Date
      2016-11-26
    • Related Report
      2016 Annual Research Report
  • [Presentation] The conformational change mechanism of the b (beta) subunit in F1-ATPase revealed by all-atom MD simulations,2014

    • Author(s)
      Yuko Ito, Mitsunori Ikeguchi
    • Organizer
      The 52th Annual Meeting of the Biophysical Society of Japan
    • Place of Presentation
      Sapporo
    • Year and Date
      2014-09-25 – 2014-09-27
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] Molecular Dynamics Simulations of F1-ATPase2014

    • Author(s)
      Yuko Ito, Mitsunori Ikeguchi
    • Organizer
      The 14th Annual Meeting of the Protein Science Society of Japan (Young Scientist Award Symposium)
    • Place of Presentation
      Yokohama
    • Year and Date
      2014-06-25 – 2014-06-27
    • Related Report
      2014 Research-status Report
    • Invited
  • [Book] the Rotational Mechanism of F1-ATPase via All-atom Molecular Dynamics Simulations2015

    • Author(s)
      Yuko Ito, Mitsunori Ikeguchi
    • Publisher
      Seibutu-Butsuri
    • Related Report
      2014 Research-status Report
  • [Book] Approaches to Understanding the Rotational Mechanism of F1-ATPase via All-atom Molecular Dynamics Simulations (Chapter 7), in: Frontiers of Chemistry Vol. 23; New Paradigm of Nanobioscience for Single Molecule Studies2014

    • Author(s)
      Yuko Ito, Mitsunori Ikeguchi (Hiroyuki Noji, ed)
    • Publisher
      Kagakudojin, Kyoto
    • Related Report
      2014 Research-status Report
  • [Book] Molecular dynamics simulation of F1-ATPase (chapter 17), in Protein Conformational Dynamics2014

    • Author(s)
      Yuko Ito, Mitsunori Ikeguchi (Ming-jun Yang, ed)
    • Publisher
      Springer, Dordrecht, Netherlands
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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