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3D structural analysis of centromere in vertebrate cells

Research Project

Project/Area Number 19K06611
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 43050:Genome biology-related
Research InstitutionNagoya University

Principal Investigator

Nishimura Kohei  名古屋大学, 理学研究科, 講師 (80582709)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsオーキシン / AID法 / セントロメア / DT40 / ネオセントロメア / セントロメアタンパク質 / ssAID法 / セントロメア因子 / 核内構造 / ノックダウン / ニワトリDT40 / Hi-C / 4C-seq
Outline of Research at the Start

脊椎動物の間期の核内におけるセントロメアに特異的な三次元ゲノム配置の分子基盤とその役割の解明である。手法としては、上記の成果をベースとして、申請者らが以前独自に開発したタンパク質除去技術オーキシンデグロン法(AID法)に高精度ゲノム三次元構造解析手法(4C法とHi-C法)を組み合わせることにより、間期核のセントロメア三次元ゲノム配置形成に関する因子群を同定する。次いで、間期のセントロメア特異的ゲノム配置が、細胞分裂期のセントロメアの機能とどのように関わるかという点を明らかにする。

Outline of Final Research Achievements

We successfully detected genome regions that specifically interact with centromeres in interphase nuclei using centromeres without repetitive sequences and the chicken DT40 cell line. This success served as a starting point for this research project. The aim of this study is to elucidate the molecular basis and role of the specific three-dimensional genome organization of centromeres in the nuclei of vertebrates during interphase. The applicants combined their previously achieved results with a protein removal technique they developed, the Auxin-Inducible Degron system (AID), with high-precision genome three-dimensional structural analysis methods (4C and Hi-C) to find that centromeres function as boundaries for binding locks in interphase nuclei.

Academic Significance and Societal Importance of the Research Achievements

本研究では、技術的な問題により、これまで解明できなかった間期核内におけるセントロメアの構造配置について、その特徴の一端を解明することができた。この成果は、ニワトリDT40細胞を用いたネオセントロメア保有株、自身が開発したAID法による標的タンパク質分解、そして、ゲノム間相互作用解析Hi-Cの3つの手法を組み合わせて達成された。今回発見された、セントロメアを境界とするゲノム構造が、どのようなメカニズムによって形成されているかは未だ不明だが、これまで注目されてこなかった間期細胞核内におけるセントロメアの機能解明に向けて、貢献する研究であると考える。

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

    (15 results)

All 2022 2021 2020 2019

All Journal Article (9 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 6 results,  Open Access: 7 results) Presentation (6 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] AID法と4C解析法を組み合わせた核内セントロメア構造の解析2022

    • Author(s)
      西村浩平
    • Journal Title

      月刊細胞

      Volume: 11 Pages: 55-58

    • Related Report
      2022 Annual Research Report
  • [Journal Article] 植物ホルモン・オーキシンによるタンパク質分解系(AID法)を利用した核内セントロメア構造の解析2022

    • Author(s)
      西村浩平
    • Journal Title

      アグリバイオ

      Volume: 6 Pages: 77-81

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Transfected plasmid DNA is incorporated into the nucleus via nuclear envelope reformation at telophase2022

    • Author(s)
      Haraguchi Tokuko、Koujin Takako、Shindo Tomoko、Sukriye Bilir、Osakada Hiroko、Nishimura Kohei、Hirano Yasuhiro、Asakawa Haruhiko、Mori Chie、Kobayashi Shouhei、Okada Yasushi、Chikashige Yuji、Fukagawa Tatsuo、Shibata Shinsuke、Hiraoka Yasushi
    • Journal Title

      Communications Biology

      Volume: 5 Issue: 1 Pages: 78-88

    • DOI

      10.1038/s42003-022-03021-8

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Simple Method that Combines CRISPR and AID to Quickly Generate Conditional Knockouts for Essential Genes in Various Vertebrate Cell Lines2021

    • Author(s)
      Nishimura Kohei、Fukagawa Tatsuo
    • Journal Title

      Methods in molecular biology (Clifton, N.J.)

      Volume: 2377 Pages: 109-122

    • DOI

      10.1007/978-1-0716-1720-5_6

    • ISBN
      9781071617199, 9781071617205
    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Simple Method to Generate Super-sensitive AID (ssAID)-based Conditional Knockouts using CRISPR-based Gene Knockout in Various Vertebrate Cell Lines2021

    • Author(s)
      Nishimura Kohei、Fukagawa Tatsuo
    • Journal Title

      BIO-PROTOCOL

      Volume: 11 Issue: 14

    • DOI

      10.21769/bioprotoc.4092

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] CUL2LRR1 , TRAIP and p97 control CMG helicase disassembly in the mammalian cell cycle.2021

    • Author(s)
      Fabrizio Villa , Ryo Fujisawa , Johanna Ainsworth , Kohei Nishimura , Michael Lie-A-Ling , Georges Lacaud , Karim Pm Labib
    • Journal Title

      EMBO reports

      Volume: 5 Issue: 3

    • DOI

      10.15252/embr.202052164

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A super-sensitive auxin-inducible degron system with an engineered auxin-TIR1 pair.2020

    • Author(s)
      Kohei Nishimura , Ryotaro Yamada , Shinya Hagihara , Rie Iwasaki , Naoyuki Uchida , Takumi Kamura , Koji Takahashi , Keiko U Torii , Tatsuo Fukagawa
    • Journal Title

      Nucleic acids research

      Volume: 48 Issue: 18 Pages: e108-e108

    • DOI

      10.1093/nar/gkaa748

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Essentiality of CENP-A Depends on Its Binding Mode to HJURP.2020

    • Author(s)
      Tetsuya Hori , JingHui Cao , Kohei Nishimura , Mariko Ariyoshi , Yasuhiro Arimura , Hitoshi Kurumizaka , Tatsuo Fukagawa
    • Journal Title

      Cell reports

      Volume: 33 Issue: 7 Pages: 108388-108388

    • DOI

      10.1016/j.celrep.2020.108388

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A super sensitive auxin-inducible degron system with an engineered auxin-TIR1 pair2020

    • Author(s)
      Kohei Nishimura, Ryotaro Yamada, Shinya Hagihara, Rie Iwasaki, Naoyuki Uchida, Takumi Kamura, Koji Takahashi, Keiko U. Torii, Tatsuo Fukagawa
    • Journal Title

      BioRxiv

      Volume: 0 Pages: 0-0

    • DOI

      10.1101/2020.01.20.912113

    • Related Report
      2019 Research-status Report
    • Open Access / Int'l Joint Research
  • [Presentation] 改良型オーキシンと受容体を用いた高感度タンパク質分解法2021

    • Author(s)
      西村浩平
    • Organizer
      日本遺伝学会第93回大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Kohei Nishimura2021

    • Author(s)
      A super-sensitive Auxin Inducible Degron (ssAID) system for conditional knockdown in various vertebrate cell lines
    • Organizer
      第44回日本分子生物学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] A super-sensitive Auxin-Inducible Degron (ssAID) system for conditional knockdown in various vertebrate cell lines2021

    • Author(s)
      Kohei Nishimura
    • Organizer
      2nd Webinar on Nucleic Acid and CRISPR
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Auxin Inducible Degron (AID) 株を利用したオーキシン分子のスクリーニング2021

    • Author(s)
      福原佳乃、中島優希、角房直哉、佐藤綾人、打田直行、小原圭介、嘉村巧、西村 浩平
    • Organizer
      第62回日本植物整理学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] A super-sensitive Auxin-Inducible Degron system for conditional knockdown in various vertebrate cell lines2020

    • Author(s)
      Kohei Nishimura , Ryotaro Yamada , Shinya Hagihara , Rie Iwasaki , Naoyuki Uchida , Takumi Kamura , Koji Takahashi , Keiko U Torii , Tatsuo Fukagawa
    • Organizer
      第43回日本分子生物学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 脊椎動物細胞におけるセントロメアの3次元構造解析2019

    • Author(s)
      西村浩平, 堀哲也, 豊田敦, 古宮正隆, 伊藤武彦, 深川竜郎
    • Organizer
      日本遺伝学会大会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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