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Study on bypass of gene essentiality

Research Project

Project/Area Number 19K22383
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 43:Biology at molecular to cellular levels, and related fields
Research InstitutionNagoya University

Principal Investigator

Goshima Gohta  名古屋大学, 理学研究科, 教授 (20447840)

Project Period (FY) 2019-06-28 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords分裂酵母必須遺伝子
Outline of Research at the Start

分裂酵母を材料に、通常の培養条件で増殖に必須であることが知られている遺伝子を完全に失った細胞の増殖能力を実験的に回復させることを試みる。そして、増殖機能が回復した要因を分子レベルで突き止めることで、その必須遺伝子のロスを代替するサブ機構を明らかにする。多くの遺伝子を解析することで、必須遺伝子を失うという生物進化上のイベントについて、その一般的仕組みを考察する。たとえば、現在の主要機構が発達したのは必然だったのか、あるいは別の進化の方向性もあり得たのか、議論する。

Outline of Final Research Achievements

Although genes that control cell division are often conserved in a wide range of species, some species do not have a specific gene. In this case, it is assumed that the species has developed an alternative mechanism during the course of evolution. In this study, by means of experimental evolution, we showed such an example: a yeast strain that has lost a gene “essential” for cell division continued to proliferate by developing an alternative “masked” mechanism.

Academic Significance and Societal Importance of the Research Achievements

酵母を使った実験で、細胞分裂に必須と考えられていたタンパク質リン酸化酵素Poloをなくしても、別のタンパク質リン酸化酵素CK1を介した予想外の細胞分裂制御機構が働くことがわかった。両者の同様の関係性は、ヒトの癌患者由来の培養細胞においても確かめられた。Poloの阻害剤は抗癌剤として有力視されているが、癌細胞の分裂(増殖)を抑えるためには、別機構との二重阻害が必要かもしれないことも示唆された。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (9 results)

All 2023 2022 2021 2019 Other

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

  • [Int'l Joint Research] The University of Edinburgh(英国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] エディンバラ大学(英国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] エディバラ大学(英国)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Mitotic spindle formation in the absence of Polo kinase2022

    • Author(s)
      Kim Juyoung、Goshima Gohta
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 119 Issue: 12

    • DOI

      10.1073/pnas.2114429119

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Identification of 15 New Bypassable Essential Genes of Fission Yeast2019

    • Author(s)
      Takeda Aoi、Saitoh Shigeaki、Ohkura Hiroyuki、Sawin Kenneth E.、Goshima Gohta
    • Journal Title

      Cell Structure and Function

      Volume: 44 Issue: 2 Pages: 113-119

    • DOI

      10.1247/csf.19025

    • NAID

      130007719009

    • ISSN
      0386-7196, 1347-3700
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Evolutionary replacement of genes required for cell division and intracellular transport.2023

    • Author(s)
      Gohta Goshima
    • Organizer
      seminar (University of Zurich, Switzerland)
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Cell division without a gene required for cell division2021

    • Author(s)
      五島剛太
    • Organizer
      The Biochemical Society and the British Society for Cell Biology -Dynamic Cell IV-
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Spindle formation without a gene required for spindle formation2021

    • Author(s)
      五島剛太
    • Organizer
      Mitotic spindle: From living and synthetic systems to theory
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] 五島研究室ホームページ

    • URL

      http://bunshi4.bio.nagoya-u.ac.jp/~tenure2/goshima.html

    • Related Report
      2022 Annual Research Report 2021 Research-status Report 2020 Research-status Report 2019 Research-status Report

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Published: 2019-07-04   Modified: 2024-01-30  

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