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The molecular mechanism of asymmetric inheritance of damaged proteins.

Research Project

Project/Area Number 25840080
Research Category

Grant-in-Aid for Young Scientists (B)

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

Principal Investigator

SUZUKI Genjiro  独立行政法人理化学研究所, 脳科学総合研究センター, 研究員 (60466034)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords細胞老化 / プリオン / 老化 / 酵母 / タンパク質
Outline of Final Research Achievements

To elucidate the molecular mechanism of cellular aging, I focused on Mlp proteins and investigated the molecular mechanism of asymmetric inheritance of damaged protein aggregates. I found the mlp mutant strain of budding yeast showed defects in asymmetric inheritance of damaged protein aggregates and prion propagons and shorter life span. I also found Mlp proteins co-localized with damaged protein aggregates. Thus, Mlp proteins must be scaffolds of aggregated proteins in mother cells and retain these aggregates in mother cells to keep the daughter cells fresh.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (4 results)

All 2014 2013 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (3 results) (of which Invited: 3 results)

  • [Journal Article] Expanding the yeast prion world: Active prion conversion of non-glutamine/asparagine-rich Mod5 for cell survival.2013

    • Author(s)
      Genjiro Suzuki, Motomasa Tanaka
    • Journal Title

      Prion

      Volume: 7 Issue: 2 Pages: 109-113

    • DOI

      10.4161/pri.22685

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] プリオン現象を利用した酵母の新たな抗ウイルス作用機構2014

    • Author(s)
      鈴木元治郎
    • Organizer
      日本生化学会大会
    • Place of Presentation
      国立京都国際会館(京都府・京都市)
    • Year and Date
      2014-10-17
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] The mechanism of asymmetric distribution of prion protein in the yeast cell.

    • Author(s)
      Genjiro Suzuki, Motomasa Tanaka
    • Organizer
      Asian Pacific Prion Symposium 2013(アジア太平洋プリオンシンポジウム2013)
    • Place of Presentation
      ハウステンボス 佐世保
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] 酵母における老化タンパク質凝集体の不均等分配のメカニズム

    • Author(s)
      鈴木元治郎, 田中元雅
    • Organizer
      日本細胞生物学会年会
    • Place of Presentation
      ウインクあいち 名古屋
    • Related Report
      2013 Research-status Report
    • Invited

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Published: 2014-07-25   Modified: 2019-07-29  

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