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Regulation of ubiquitin homeostasis at endosomes

Research Project

Project/Area Number 26440070
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Functional biochemistry
Research InstitutionShizuoka University

Principal Investigator

Kimura Yoko  静岡大学, 農学部, 教授 (80291152)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsユビキチン / ホメオスタシス / エンドソーム / タンパク質分解 / 脱ユビキチン化酵素 / Rfu1 / Bro1 / 熱ストレス / Vドメイン / Alix / Rim20 / 酵母 / V ドメイン
Outline of Final Research Achievements

Yeast Rfu1 (Regulator for free ubiquitin chain 1) localizes to endosomes and plays a role in ubiquitin homeostasis by inhibiting the activity of Doa4.We showed that Bro1, a class E vacuolar protein sorting protein that recruits Doa4 to endosomes, also recruits Rfu1 to endosomes by the direct interaction between a region containing the YPEL motif in Rfu1 and the V domain in Bro1, which could be analogous to the interaction between the mammalian Alix V domain and YPXnL motifs of target proteins. Overexpression of Bro1 and the V domain prevented Rfu1 degradation after heat shock. Rfu1 degradation partly involved the proteasome and Rsp5.Finally, we showed that Rim20, another yeast Bro1 family protein, binds to Rim101 through the interaction between the V domain and the YPIKL motif. These results suggest that interactions between V domains and YP(X)nL motifs are conserved from yeast to mammalian cells. We also showed the specificities of each V domain to their target protein.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (11 results)

All 2016 2015 2014 Other

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

  • [Journal Article] Conserved Mode of Interaction between Yeast Bro1 Family V Domains and YP(X)nL Motif-Containing Target Proteins2015

    • Author(s)
      Yoko Kimura, Mirai Tanigawa, Junko Kawawaki, Kenji Takagi, Tsunehiro Mizushima, Tatsuya Maeda, Keiji Tanaka
    • Journal Title

      Eukaryotic Cell

      Volume: 14 Issue: 10 Pages: 976-982

    • DOI

      10.1128/ec.00091-15

    • NAID

      120005671359

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] VCP/Cdc48 rescues the growth defect of a GPI10 mutant in yeast2015

    • Author(s)
      Ohnuma Y, Takata T, Kawawaki J, Yasuda K, Tanaka K, Kimura Y, Kakizuka A.
    • Journal Title

      FEBS Lett.

      Volume: 589 Issue: 5 Pages: 576

    • DOI

      10.1016/j.febslet.2015.01.017

    • NAID

      120005531440

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] The ESCRT-III adaptor protein Brol controls functions of regulator for free ubiauitin chains 1 (Rful) in ubiquitin homeostasis2014

    • Author(s)
      Kimura Y, Kawawaki J, Kakiyama Y, Shimoda A, and Tanaka K
    • Journal Title

      J Biol Chem

      Volume: 289 Issue: 31 Pages: 21760-21769

    • DOI

      10.1074/jbc.m114.550871

    • Related Report
      2014 Research-status Report
    • Peer Reviewed
  • [Journal Article] Ubiquitin is phosphorylated by PINK1 to activate parkin.2014

    • Author(s)
      Koyano, F., Okatsu, K., Kosako, H., Tamura, Y., Go, E., Kimura, M., Kimura, Y., Tsuchiya, H., Yoshihara, H., Hirokawa, T., Endo, T., Fon. E. A., Trempe, J. F., Saeki, Y., Tanaka, K., and Matsuda, N.
    • Journal Title

      Nature

      Volume: 510(in press) Issue: 7503 Pages: 162-166

    • DOI

      10.1038/nature13392

    • Related Report
      2014 Research-status Report
    • Peer Reviewed
  • [Presentation] Analysis of interaction between yeast Bro1 family V domains and YP(X)nL motif-containing target proteins2016

    • Author(s)
      Yoko Kimura
    • Organizer
      14th International Congress on Yeasts
    • Place of Presentation
      Awaji Yumebudai, Awaji, Hyogo, Japan
    • Year and Date
      2016-09-11
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Conserved Mode of Interaction between Yeast Bro1 Family V Domains and YP(X)nL Motif-Containing Target Proteins2015

    • Author(s)
      Yoko Kimura, Mirai Tanigawa, Junko Kawawaki, Kenji Takagi, Tsunehiro Mizushima, Tatsuya Maeda, Keiji Tanaka
    • Organizer
      BMB2015
    • Place of Presentation
      神戸ポートアイランド(神戸市中央区)
    • Year and Date
      2015-12-01
    • Related Report
      2015 Research-status Report
  • [Presentation] 酵母Bro1およびRim20のV ドメインの解析2015

    • Author(s)
      木村 洋子、谷川美頼、川脇純子、高木賢治、水島恒裕、前田達哉・田中啓二
    • Organizer
      酵母遺伝学フォーラム
    • Place of Presentation
      広島大学〈広島県東広島市)
    • Year and Date
      2015-08-31
    • Related Report
      2015 Research-status Report
  • [Presentation] エンドソーム関連タンパク質Bro1とユビキチンの量的制御因子Rfu1の相互作用の解析2014

    • Author(s)
      A1木村洋子.川脇純子.田中啓二
    • Organizer
      第37回日本分子生物学会年会
    • Place of Presentation
      パシフィコ横浜・横浜
    • Year and Date
      2014-11-25 – 2014-11-27
    • Related Report
      2014 Research-status Report
  • [Presentation] VCP/Cdc48過剰発現スクリーニングから得られたgpi10変異体の解析2014

    • Author(s)
      大沼洋平・木村洋子・川脇純子・田中啓二・垣塚彰
    • Organizer
      酵母遺伝学フォーラム
    • Place of Presentation
      東京大学・東京
    • Year and Date
      2014-09-01 – 2014-09-03
    • Related Report
      2014 Research-status Report
  • [Remarks] 静岡大学 木村研究室

    • URL

      http://kimurapqchs.agr.shizuoka.ac.jp/

    • Related Report
      2016 Annual Research Report
  • [Remarks] 静岡大学 木村研究室

    • URL

      http://kimurapqchs.agr.shizuoka.ac.jp/wordpress/

    • Related Report
      2014 Research-status Report

URL: 

Published: 2014-04-04   Modified: 2018-03-22  

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