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Analysis of cargo accumulation mechanism to concave face of the isolation membrane

Research Project

Project/Area Number 17K18339
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Structural biochemistry
Cell biology
Research InstitutionTokyo Institute of Technology (2018-2019)
Microbial Chemistry Research Foundation (2017)

Principal Investigator

Yamasaki Akinori  東京工業大学, 科学技術創成研究院, 特任助教 (80623884)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords選択的オートファジー / オートファジー / オートファゴソーム / オルガネラ
Outline of Final Research Achievements

I investigated the mechanism how autophagic cargos accumulates to concave face of the isolation membrane by using Ape1 which is a primary cargo of model selective autophagy pathway, Cvt pathway. From in vitro reconstitution assay of cargo incorporation into autophagosome, wildtype Ape1 with the selective autophagy receptor Atg19 induced to bend Atg8-GUV membrane. However, it never occurred with aggregated Ape1 mutant P22L. This result suggests that cargo property is important for bending of the isolation membrane and cargo incorporation into autophagosome.

Academic Significance and Societal Importance of the Research Achievements

本研究は選択的オートファジーにされるカーゴの状態がオートファゴソーム前駆体の屈曲と取り込みに重要であることを見出した。ヒトにおいて選択的オートファジーは細胞内ホメオスタシスを保つために非常に重要な働きを行っており、その破綻は様々な疾病、特に神経での破綻は神経変性疾患を引き起こすことが示唆されている。このことから本研究から得られた選択的オートファジーに関する知見は、神経変性疾患を始めとする疾患群を克服するための足がかりとなることが期待される。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (18 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (2 results) Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (8 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results) Remarks (4 results)

  • [Int'l Joint Research] NIBS/Beijing Normal University(中国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] The Ohio State University(米国)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Liquidity Is a Critical Determinant for Selective Autophagy of Protein Condensates2020

    • Author(s)
      Yamasaki Akinori、Alam Jahangir Md.、Noshiro Daisuke、Hirata Eri、Fujioka Yuko、Suzuki Kuninori、Ohsumi Yoshinori、Noda Nobuo N.
    • Journal Title

      Molecular Cell

      Volume: 77 Issue: 6 Pages: 1163-1175

    • DOI

      10.1016/j.molcel.2019.12.026

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structural Studies of Selective Autophagy in Yeast2019

    • Author(s)
      Yamasaki Akinori、Watanabe Yasunori、Noda Nobuo N.
    • Journal Title

      Methods in Molecular Biology

      Volume: 1880 Pages: 77-90

    • DOI

      10.1007/978-1-4939-8873-0_4

    • ISBN
      9781493988723, 9781493988730
    • Related Report
      2018 Research-status Report
  • [Journal Article] Lipidation-independent vacuolar functions of Atg8 rely on its noncanonical interaction with a vacuole membrane protein2018

    • Author(s)
      Liu Xiao-Man、Yamasaki Akinori、Du Xiao-Min、Coffman Valerie C、Ohsumi Yoshinori、Nakatogawa Hitoshi、Wu Jian-Qiu、Noda Nobuo N、Du Li-Lin
    • Journal Title

      eLife

      Volume: 7

    • DOI

      10.7554/elife.41237

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Structural biology of the Cvt pathway2017

    • Author(s)
      Yamasaki A, Noda NN
    • Journal Title

      Journal of Molecular Biology

      Volume: 429 Issue: 4 Pages: 531-542

    • DOI

      10.1016/j.jmb.2017.01.003

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Functional and Molecular Insights into Selective Autophagy of Phase Separated Cargo2019

    • Author(s)
      Akinori Yamasaki
    • Organizer
      Keystone Symposia in Snowbird Biomolecular Condensates: Phase Separated Organizers of Cellular Biochemistry
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Liquidity is a critical determinant for selective autophagy of protein condensates2019

    • Author(s)
      Akinori Yamasaki
    • Organizer
      International Symposium on Autophagy 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 液滴の選択的オートファジーにおける分子メカニズムの解明2019

    • Author(s)
      山崎章徳, Jahangir Md. Alam, 能代大輔, 平田恵理, 鈴木邦律, 大隅良典, 野田展生
    • Organizer
      第12回オートファジー研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Functional and Molecular Insights into Selective Autophagy of Phase Separated Cargo2018

    • Author(s)
      Akinori Yamasaki
    • Organizer
      The China-Japan-Korea Symposium on Autophagy
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 液液相分離するカーゴに対する選択的オートファジーの分子機構2018

    • Author(s)
      山崎章徳
    • Organizer
      第11回オートファジー研究会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 液液相分離するカーゴに対する選択的オートファジーの分子機構2018

    • Author(s)
      山崎章徳
    • Organizer
      第41回日本分子生物学会年会
    • Related Report
      2018 Research-status Report
  • [Presentation] Identification of helical AIMs as a novel type of Atg8-interacting motif2017

    • Author(s)
      Akinori Yamasaki, Xiao-Man Liu, Li-Lin Du, Nobuo N. Noda
    • Organizer
      The 8th International Symposium on Autophagy
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 脂質化に依存しない Atg8の機能および新規ヘリックス様 Atg8結合モチーフの解析2017

    • Author(s)
      山崎章徳
    • Organizer
      ConBio2017
    • Related Report
      2017 Research-status Report
  • [Remarks] Autophagy degrades liquid droplets

    • URL

      https://phys.org/news/2020-02-autophagy-degrades-liquid-dropletsbut-aggregatesof.html

    • Related Report
      2019 Annual Research Report
  • [Remarks] 東大・微化研・東工大など、液滴状態のたんぱく質を効率的に分解する選択的オートファジーの仕組みを解明

    • URL

      https://www.nikkei.com/article/DGXLRSP527487_T20C20A1000000/

    • Related Report
      2019 Annual Research Report
  • [Remarks] 液-液相分離がオートファジーを制御する仕組みを発見

    • URL

      https://www.titech.ac.jp/news/2020/046033.html

    • Related Report
      2019 Annual Research Report
  • [Remarks] 公益財団法人 微生物化学研究会 微生物化学研究所

    • URL

      http://www.bikaken.or.jp

    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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