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Anlysis of Cfap53 that nessessary for cilia motility in node

Research Project

Project/Area Number 17K15123
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Cell biology
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Ide Takahiro  国立研究開発法人理化学研究所, 生命機能科学研究センター, 研究員 (40777801)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
KeywordsCfap53 / Ccdc11 / ノード繊毛 / CFAP53 / 外腕ダイニン / 生理学 / 生体分子 / 蛋白質
Outline of Final Research Achievements

Cfap53 expressed in the cells which have motile cilia and localized on proximal region of tracheal cilia. This protein was not extract with 0.6 M NaCl in which outer arm dyneins, main power generator of cilia, were extracted. Outer arm dyneins were partially lost in 9+2 structures in Cfap53 mutant mice. Hence, Cfap53 is not necessary to dock outer arm dyneins on the axonemes, however boosts the binding affinity between axonemal doublet microtubules and outer arm dyneins. Furthermore, the outer arm dyneins cannot generated ciliary beating without Cfap53 protein in Cfap53 and Wdr63, the component of inner arm dyneins, double mutant mice. Therefore, we generated the model about outer arm dynein docking that the binding affinity of outer arm dyneins by contribution of Cfap53 is necessary for enduring dynein power stroke and achieving ciliary beating.

Academic Significance and Societal Importance of the Research Achievements

本研究により、Cfap53がダイニン及びダイニンドッキング複合体ではない、ダイニンの結合に寄与する軸糸タンパク質であることが明らかになった。特に、気管繊毛では根元付近に局在し、これはダイニン重鎖Dnah11の局在と似ていることから繊毛構築に関する新たな局面を提供できるものと期待している。
さらに、Cfap53欠失マウスの気管繊毛における、一部の外腕ダイニンが欠失するという特徴とダイニンの機能不全化は、繊毛運動の原動力となるダイニンのすべり力と根元を固定させる静的な力の比較を可能にする糸口になると考えている。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (4 results)

All 2018 2017

All Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] Cfap53 plays crucial role in binding of ODA to axoneme in Nodal cilia2018

    • Author(s)
      Wang Twan, Takahiro Ide, Nicole Henninger, Hidetaka Shiratori, Hiroshi Hamada
    • Organizer
      第 41 回 日本分子生物学会年
    • Related Report
      2018 Annual Research Report
  • [Presentation] ノード繊毛特異的に繊毛打が失われるCFAP53の解析2018

    • Author(s)
      井手隆広, Wang Twan, Nicole Henninger, 白鳥秀卓, 濱田博司
    • Organizer
      2018年 生体運動研究合同班会議
    • Related Report
      2017 Research-status Report
  • [Presentation] マウス胚におけるノード特異的なダイニン腕の構築機構2017

    • Author(s)
      井手 隆広
    • Organizer
      兵庫県立こども病院-CDB 第2回ジョイントシンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] Node-specific dynein arm formation in the mouse embryo2017

    • Author(s)
      Takahiro Ide, Wang Twan, Nicole Henninger, Hidetaka Shiratori, Hiroshi Hamada
    • Organizer
      International Workshop - Dynein 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2020-03-30  

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