• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Elucidating the effects of microtubule inner proteins on the architecture of the tubulin lattice.

Research Project

Project/Area Number 19K23726
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0701:Biology at molecular to cellular levels, and related fields
Research InstitutionNara Institute of Science and Technology

Principal Investigator

Ichikawa Muneyoshi  奈良先端科学技術大学院大学, 先端科学技術研究科, 助教 (80844662)

Project Period (FY) 2019-08-30 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords繊毛 / ダブレット微小管 / 微小管内タンパク質 / クライオ電子顕微鏡 / X線結晶構造解析 / 微小管
Outline of Research at the Start

繊毛・鞭毛は細胞の運動器官である。繊毛・鞭毛はヒトの体内においても重要な機能を担っており、繊毛タンパク質の異常は繊毛病などの病態の原因ともなる。繊毛・鞭毛の軸となるダブレット微小管の内部には、微小管内タンパク質が結合しているが、その実体、そしてその機能の理解は不十分であった。本研究では、これらのタンパク質を同定するとともに、X線結晶構造解析・クライオ電子顕微鏡法などの構造解析手法を用いることで、微小管内タンパク質がどのように繊毛・鞭毛のダブレット微小管を安定化しているかを明らかとする。

Outline of Final Research Achievements

By obtaining high resolution structures of the doublet microtubule from cilia, detailed binding schemes of the microtubule inner proteins (MIPs) to the tubulin lattice have been revealed. By comparing the tubulin lattice with intact MIPs with the one with some MIPs missing, it was shown that the MIPs fix the tubulin lattice length into the stable elongated conformation. MIPs were also shown to change the angles between the protofilaments. Some of the protein identities of these MIPs were identified by mass spectrometry and X-ray crystal structures were obtained. Co-polymerization experiments of the MIP proteins and tubulins were also performed and the effects of the MIPs on the tubulin lattice formation from the inside have also been revealed.

Academic Significance and Societal Importance of the Research Achievements

繊毛はヒトの体内においても多彩な機能を担う重要な構造体である。気管の上皮でウイルスなどの異物を除去するなど重要な機能を担っている。繊毛は1秒間に数十回波打つために安定かつしなやかな性質をもつが、繊毛がどのようにしてこのような特性を得ているかはわかっていなかった。本研究では、繊毛内のダブレット微小管がどのようにして安定化されるかを初めて示すことができた。これは、ヒトの繊毛病の病態が引き起こされる機構の理解や、将来的にはその治療にも応用できる可能性のある重要な知見である。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (19 results)

All 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (5 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (11 results) (of which Int'l Joint Research: 7 results,  Invited: 2 results) Remarks (1 results)

  • [Int'l Joint Research] McGill大学(カナダ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] McGill大学(カナダ)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Crystal structure of human PACRG in complex with MEIG1 reveals roles in axoneme formation and tubulin binding2021

    • Author(s)
      Nimra Khan, Dylan Pelletier, Thomas S. McAlear, Nathalie Croteau, Simon Veyron, Andrew N. Bayne, Corbin Black, Muneyoshi Ichikawa, Ahmad Abdelzaher Zaki Khalifa, Sami Chaaban, Igor Kurinov, Gary Brouhard, Susanne Bechstedt, Khanh Huy Bui, Jean-Francois Trempe
    • Journal Title

      Structure

      Volume: 29 Issue: 6 Pages: 1-15

    • DOI

      10.1016/j.str.2021.01.001

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Complex of Outer-arm Dynein Light Chain-1 and the Microtubule-binding Domain of the Heavy Chain Shows How Axonemal Dynein Tunes Ciliary Beating2021

    • Author(s)
      Toshiki Yagi, Akiyuki Toda, Muneyoshi Ichikawa, Genji Kurisu
    • Journal Title

      Seibutsu Butsuri

      Volume: 61 Issue: 1 Pages: 020-022

    • DOI

      10.2142/biophys.61.020

    • NAID

      130007976664

    • ISSN
      0582-4052, 1347-4219
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identification and mapping of central pair proteins by proteomic analysis2020

    • Author(s)
      Daniel Dai, Muneyoshi Ichikawa, Katya Peri, Reid Rebinsky, Khanh Huy Bui
    • Journal Title

      Biophysics and Physicobiology

      Volume: 17 Issue: 0 Pages: 71-85

    • DOI

      10.2142/biophysico.bsj-2019048

    • NAID

      130007879483

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The inner junction complex of the cilia is an interaction hub that involves tubulin post-translational modifications2020

    • Author(s)
      Khalifa Ahmad Abdelzaher Zaki、Ichikawa Muneyoshi、Dai Daniel、Kubo Shintaroh、Black Corbin Steven、Peri Katya、McAlear Thomas S、Veyron Simon、Yang Shun Kai、Vargas Javier、Bechstedt Susanne、Trempe Jean-Francois、Bui Khanh Huy
    • Journal Title

      eLife

      Volume: 9 Pages: 1-25

    • DOI

      10.7554/elife.52760

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Tubulin lattice in cilia is in a stressed form regulated by microtubule inner proteins2019

    • Author(s)
      Ichikawa Muneyoshi、Khalifa Ahmad Abdelzaher Zaki、Kubo Shintaroh、Dai Daniel、Basu Kaustuv、Maghrebi Mohammad Amin Faghfor、Vargas Javier、Bui Khanh Huy
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 116 Issue: 40 Pages: 19930-19938

    • DOI

      10.1073/pnas.1911119116

    • NAID

      120006723245

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] How Rib43a and Acetylation of K40 control the rigidity of Microtubules2021

    • Author(s)
      Shintaroh Kubo, Ahmad Khalifa, Muneyoshi Ichikawa, Daniel Dai, Corbin Black, Katya Peri, Shun Kai Yang, Jaiver Vargas, Khanh-Huy Bui
    • Organizer
      65th Biophysical Society Annual Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Remodeling and activation mechanisms of outer arm dynein revealed by cryo-EM2021

    • Author(s)
      Muneyoshi Ichikawa
    • Organizer
      18th BSCB GenSoc UK Cilia Network e-symposium
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] How Rib43a and Acetylation of K40 control the rigidity of Microtubules2020

    • Author(s)
      Shintaroh Kubo, Ahmad Khalifa, Muneyoshi Ichikawa, Daniel Dai, Corbin Black, Katya Peri, Shun Kai Yang, Jaiver Vargas, Khanh-Huy Bui
    • Organizer
      EMBO WORKSHOP
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ダブレット微小管上での外腕ダイニンの高分解能構造2020

    • Author(s)
      市川宗厳
    • Organizer
      第10回分子モーター討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Cryo-EM revealed unique and diverse binding schemes of the microtubule inner proteins at the inner junction region of cilia2020

    • Author(s)
      Muneyoshi Ichikawa, Ahmad Khalifa, Daniel Dai, Shintaroh Kubo, Corbin Black, Katya Peri, Thomas McAlear, Simon Veyron, Shun Kai Yang, Javier Vargas, Susanne Bechstedt, Jean-Francois Trempe, Khanh Huy Bui
    • Organizer
      第58回日本生物物理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Characterization of properties of microtubule inner protein FAP85.2020

    • Author(s)
      Yoshitoki Shibao, Corbin Black, Muneyoshi Ichikawa, Junya Kirima, Kazuhiro Oiwa, Khanh Huy Bui, Tomoya Tsukazaki
    • Organizer
      第58回日本生物物理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] クライオ電顕によるダブレット微小管の近原子分解能構造2020

    • Author(s)
      Muneyoshi Ichikawa, Ahmad Khalifa, Daniel Dai, Shintaroh Kubo, Corbin Black, Katya Peri, Thomas McAlear, Simon Veyron, Shun Kai Yang, Javier Vargas, Susanne Bechstedt, Jean-Francois Trempe, Khanh Huy Bui
    • Organizer
      日本顕微鏡学会 第76回学術講演会 日本-カナダ 二国間交流シンポジウム
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The inner junction complex of the cilia is an interaction hub that involves tubulin post-translational modifications.2020

    • Author(s)
      Khalifa Ahmad Abdelzaher Zaki、Ichikawa Muneyoshi、Dai Daniel、Kubo Shintaroh、Black Corbin Steven、Peri Katya、McAlear Thomas S、Veyron Simon、Yang Shun Kai、Vargas Javier、Bechstedt Susanne、Trempe Jean-Francois、Bui Khanh Huy
    • Organizer
      64th Biophysical Society Annual Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 微小管内タンパク質によるチューブリン格子構造の内側からの制御2019

    • Author(s)
      市川 宗厳 , Khalifa Ahmad Abdelzaher Zaki , 久保 進太郎 , Basu Kaustuv, Daniel Dai , Amin Maghrebi , Javier Vargas , Bui Khanh Huy
    • Organizer
      第57回日本生物物理学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Microtubule Inner Proteins Weave Into The Doublet Microtubule Tubulin Lattice2019

    • Author(s)
      Ichikawa Muneyoshi、Khalifa Ahmad Abdelzaher Zaki、Kubo Shintaroh、Dai Daniel、Basu Kaustuv、Maghrebi Mohammad Amin Faghfor、Vargas Javier、Bui Khanh Huy
    • Organizer
      2019 ASCB|EMBO Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Identifying and Mapping the Protein Composition of the Central Pair Apparatus through Proteomics2019

    • Author(s)
      Dai Daniel , Ichikawa Muneyoshi , Peri Katya, Rebinsky Reid, Bui Khanh Huy
    • Organizer
      2019 ASCB|EMBO Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Remarks] プレスリリース

    • URL

      http://www.naist.jp/pressrelease/2019/09/006167.html

    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-09-03   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi