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Biochemical screen and functional analysis of a protein complexrequired for selective degradation of mitochondria

Research Project

Project/Area Number 22770124
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Functional biochemistry
Research InstitutionOsaka University

Principal Investigator

OKAMOTO Noriko  大阪大学, 生命機能研究科, 特任研究員 (90568750)

Research Collaborator OKAMOTO Koji  大阪大学, 生命機能研究科, 特任准教授 (40455217)
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥5,969,910 (Direct Cost: ¥4,592,239、Indirect Cost: ¥1,377,671)
Fiscal Year 2012: ¥1,679,910 (Direct Cost: ¥1,292,239、Indirect Cost: ¥387,671)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsミトコンドリア / 出芽酵母 / 膜ダイナミクス / 品質管理 / オートファジー / 細胞内分解 / 酸化ストレス
Research Abstract

Selective degradation of damaged or surplus mitochondria is important for cellular homeostasis. Recently, it has been proposed that degradation of mitochondria, termed mitophagy, is critical for mitochondrial quality control system. However, the molecular mechanisms remain largely unkown. We identified the specific mitochondrial receptor Atg32 that is essential for the mitophagy using budding yeast. In this study, we performed the biochemical screening and identified novel factors interacting with Atg32.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (14 results)

All 2012 2011 2010 Other

All Journal Article (6 results) (of which Peer Reviewed: 2 results) Presentation (3 results) Remarks (5 results)

  • [Journal Article] Mitochondria and autophagy : critical interplay between the two homeostats2012

    • Author(s)
      Okamoto, K., Kondo-Okamoto, N.
    • Journal Title

      Biochimica et Biophysica Acta

      Volume: 1820 Issue: 5 Pages: 595-600

    • DOI

      10.1016/j.bbagen.2011.08.001

    • Related Report
      2012 Annual Research Report 2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Autophagy-related protein 32 acts as autophagic degron and directly initiates mitophagy2012

    • Author(s)
      Noriko Kondo-Okamoto, Nobuo N. Noda, Sho W Suzuki, Hitoshi Nakatogawa, Ikuko Takahashi, Miou Matsunami, Ayako Hashimoto, Fuyuhiko Inagaki, Yoshinori Ohsumi, Koji Okamoto
    • Journal Title

      The Journal of Biological Chemistry

      Volume: 287 Issue: 13 Pages: 10631-10638

    • DOI

      10.1074/jbc.m111.299917

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] 酵母のマイトファジー,~観察からの始まり~2010

    • Author(s)
      岡本徳子,岡本浩二,大隅良典
    • Journal Title

      顕微鏡・特集「オートファジー:形態学と分子生物学の融合」

      Volume: 45: 83-86

    • NAID

      130007788949

    • Related Report
      2012 Final Research Report
  • [Journal Article] マイトファジー2010

    • Author(s)
      岡本浩二,岡本徳子
    • Journal Title

      細胞工学・特集「その時ミトコンドリアは動いた:独自の品質管理システムから疾患に迫る」

      Volume: 29: 423-428

    • Related Report
      2012 Final Research Report
  • [Journal Article] マイトファジー2010

    • Author(s)
      岡本浩二, 岡本徳子
    • Journal Title

      細胞工学

      Volume: 29 Pages: 423-428

    • Related Report
      2010 Annual Research Report
  • [Journal Article] 酵母のマイトファジー2010

    • Author(s)
      岡本徳子, 岡本浩二, 大隅良典
    • Journal Title

      顕微鏡

      Volume: 45 Pages: 83-86

    • Related Report
      2010 Annual Research Report
  • [Presentation] 選択的ミトコンドリア分解の分子機構2011

    • Author(s)
      岡本徳子、鈴木翔、岡本浩二、大隅良典
    • Organizer
      第11回日本蛋白質科学会年会 ワークショップ講演
    • Place of Presentation
      大阪
    • Year and Date
      2011-06-09
    • Related Report
      2012 Final Research Report
  • [Presentation] Molecular mechanisms of selective mitochondrial degradation2011

    • Author(s)
      Kondo-Okamoto, N.
    • Organizer
      第11回日本蛋白質科学会年会
    • Place of Presentation
      ホテル阪急エキスポパーク(大阪府吹田市)(招待講演)
    • Year and Date
      2011-06-09
    • Related Report
      2011 Annual Research Report
  • [Presentation] Atg32が司る酵母マイトファジーの分子機構2011

    • Author(s)
      岡本徳子
    • Organizer
      2011オートファジー研究会
    • Place of Presentation
      ヤマハリゾート つま恋静岡県
    • Year and Date
      2011-01-13
    • Related Report
      2010 Annual Research Report
  • [Remarks] ミトコンドリア動態学研究室ホームページ

    • URL

      http://www.fbs.osaka-u.ac.jp/labs/okamoto/Okamoto_Lab/

    • Related Report
      2012 Final Research Report
  • [Remarks] ミトコンドリア動態学研究室紹介

    • URL

      http://www.omoroi-seimei.info/introduction/lab27-okamoto.html

    • Related Report
      2012 Final Research Report
  • [Remarks] 大阪大学大学院 生命機能研究科 ミトコンドリア動態学研究室 (岡本研究室)

    • URL

      http://www.fbs.osaka-u.ac.jp/labs/okamoto/Okamoto_Lab/toppu.html

    • Related Report
      2012 Annual Research Report
  • [Remarks]

    • URL

      http://www.fbs.osaka-u.ac.jp/labs/okamoto/Okamoto_Lab/

    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • URL

      http://www.fbs.osaka-u.ac.jp/labs/okamoto/Okamoto_Lab/

    • Related Report
      2010 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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