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Development of a high resolution three-dimensional structure analysis method of minimal molecules by KAGOME DNA origami

Research Project

Project/Area Number 16K14682
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Structural biochemistry
Research InstitutionOsaka University

Principal Investigator

KATO Takayuki  大阪大学, 生命機能研究科, 特任准教授(常勤) (20423155)

Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsクライオ電子顕微鏡 / 構造解析 / DNA origami / 籠目型DNA origami / 単粒子解析 / 籠目型DNA / DNA折り紙 / べん毛モーター / MotA複合体 / 電子顕微鏡 / 単粒子像解析 / 立体子像解析
Outline of Final Research Achievements

In this stady, we will develop a technique for fixied a small molecule in the center of KAGOME pattern DNA origami.It can be used as nano chamber for structural analysis of a small molecule, less than 100 kDa, by electron cryomicroscopie. The stator protein MotA in flagella motor was selected as target protein for evaluation for this techinique. In beginning, The MotA structure was solved by electron microscopie, and shape and size information was obtained. Then KAGOME pattern DNA origami was designed to fit it, which will formed by four single stranded DNA. The one DNA has biotin labeled for fixed the target protein into center of KAGOME DNA origami. The formation of KAGOME pattern was evaluated by electrophoresis and negative stained electron microscope.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • Research Products

    (6 results)

All 2017 2016

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (5 results)

  • [Journal Article] The tetrameric MotA complex as the core of the flagellar motor stator from hyperthermophilic bacterium2016

    • Author(s)
      Takekawa N, Terahara N, Kato T, Gohara M, Mayanagi K, Hijikata A, Onoue Y, Kojima S, Shirai T, Namba K, Homma M
    • Journal Title

      Sci Rep

      Volume: 6 Issue: 1 Pages: 31526-31526

    • DOI

      10.1038/srep31526

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 最新クライオ電子顕微鏡CryoARMの性能評価と構造解析2017

    • Author(s)
      加藤 貴之
    • Organizer
      生理研研究会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Structural analysis of the NATIVE state flagella fook2017

    • Author(s)
      Kato T., Miyata T., Horvath P. and Namba K.
    • Organizer
      第55回日本生物物理学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 細菌べん毛モーター回転スイッチ制御機構の解明2017

    • Author(s)
      宮田 知子、加藤 貴之、川本 晃大、難波 啓一
    • Organizer
      生理研研究会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 細菌べん毛モーターの回転方向制御機構の解明2017

    • Author(s)
      Miyata T., Kato T., Kawamoto A. and Namba K.
    • Organizer
      生理研研究会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Performance of State-of-the-art Cryo EM, named “CryoARM”2016

    • Author(s)
      Kato T., Hosogi N., Kaneko T., Ishikawa I., Namba, K.
    • Organizer
      第54回日本生物物理学会年会
    • Place of Presentation
      つくば国際会議場(茨城県つくば市)
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2019-03-29  

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