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Simulation study on functions of an anti-microbial peptide

Research Project

Project/Area Number 25330355
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Life / Health / Medical informatics
Research InstitutionNagahama Institute of Bio-Science and Technology

Principal Investigator

Yoda Takao  長浜バイオ大学, バイオサイエンス学部, 准教授 (50367900)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2013: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Keywords抗菌ペプチド / 分子シミュレーション / 分子動力学シミュレーション / 分子動力学法 / シミュレーション / 拡張アンサンブル法
Outline of Final Research Achievements

Here we performed simulation studies on conformations of a defensin-family peptide, Crp-4, and its interaction with membrane. Our replica-exchange molecular dynamics simulations have revealed effects of the evolutionally conserved disulfide bridges of Crp-4 on its conformations in an environment near negatively charged membrane. The spatial distribution of positively charged groups in the peptide has been shown to correlate with the number of disulfide bridges formed. The disulfide bridge between Cys11 and Cys28 seems to affect the hydrophobic cluster formation within the peptide molecule.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report

Research Products

(7 results)

All 2015 2014

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Journal Article] Deciphering Supramolecular Structures with Protein-Protein Interaction Network Modeling2015

    • Author(s)
      Toshiyuki Tsuji, Takao Yoda, and Tsuyoshi Shirai
    • Journal Title

      Scientific Reports

      Volume: 5 Pages: 16341-16341

    • DOI

      10.1038/srep16341

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] GENESIS: A hybrid-parallel and multi-scale molecular dynamics simulator with enhanced sampling algorithms for biomolecular and cellular simulations2015

    • Author(s)
      Jung, J., Mori, T., Kobayashi, C., Matsunaga, Y., Yoda, T., Feig, M., Sugita, Y.
    • Journal Title

      WIREs; Comput. Mol. Sci.

      Volume: -

    • Related Report
      2014 Research-status Report
    • Peer Reviewed
  • [Journal Article] Salt effects on hydrophobic-core formation in folding of a helical miniprotein studied by molecular dynamics simulations2014

    • Author(s)
      T. Yoda, Y. Sugita, and Y. Okamoto
    • Journal Title

      Proteins

      Volume: 82 Pages: 933-943

    • DOI

      10.1002/prot.24467

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] Simulation Study on Conformations of Antimicrobial Peptide Cryptdin 4 and its Mutants2015

    • Author(s)
      Takao Yoda
    • Organizer
      2nd International Symposium on Computational Materials and Biological Sciences
    • Place of Presentation
      名古屋大学
    • Year and Date
      2015-09-01
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Simulation Study on Conformations of Small Peptides.2014

    • Author(s)
      Takao Yoda
    • Organizer
      Dushanbe Symposium on Computational Materials and Biological Sciences 2014
    • Place of Presentation
      S.U. Umarov Physical-Technical Institute of the Academy of Sciences of the Republic of Tajikistan
    • Year and Date
      2014-09-24
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] 抗菌ペプチド Cryptdin-4 ジスルフィド結合変異体の分子動力学シミュレーション2014

    • Author(s)
      依田隆夫,辻敏之,杉田有治
    • Organizer
      第14回日本蛋白質科学会年会
    • Place of Presentation
      ワークピア横浜/横浜産貿ホール マリネリア
    • Year and Date
      2014-06-27
    • Related Report
      2014 Research-status Report
  • [Presentation] Salt effects on folding of a helical mini protein villin headpiece subdomain HP36 studied by generalized-ensemble simulations2014

    • Author(s)
      Takao Yoda, Yuji Sugita, and Yuko Okamoto
    • Organizer
      Biophysical Society 58th Annual Meeting
    • Place of Presentation
      Moscone Center, San Francisco CA.
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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