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Comprehensive analyses of controlling mechanism for higher-order structure of chromatin and gene transcription regulation mediated by Poly-ADP-ribosylation

Research Project

Project/Area Number 16K18469
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Genome biology
Research InstitutionThe University of Tokyo

Principal Investigator

Fujiki Katsunori  東京大学, 定量生命科学研究所, 助教 (10646730)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsPAR化 / 次世代シーケンサー / 1細胞解析 / ChIA-drop / ChIA-PET / Hi-C / クロマチン高次構造 / 転写調節 / ゲノム
Outline of Final Research Achievements

Protein Poly-ADP-ribosylation in cell nuclear drastically changes surrounding chromatin environment by its electric property, and regulates many biological process including gene transcription and DNA repair. In this project, I developed a new research method to detect the change of higher-order chromatin structure by this modification. ChIA-drop, the new method which was named on its use of DNA labeling technology in micro droplet, is the first research method that enables detection of "multi-contact" chromatin interaction in "single-molecule" resolution, and provides advantages over the existing techniques including Hi-C and ChIA-PET that base on accumulation of pairwise-contact information of many molecules.

Academic Significance and Societal Importance of the Research Achievements

本研究で開発したChIA-drop法を用いることで、PAR化修飾によるクロマチン高次構造制御機構の理解がさらに深まることが期待できる。またこのChIA-drop法はPAR化のみを標的とした解析手法にとどまらず、インプットとして用いるサンプルを変えることで、様々な標的タンパク質を介したクロマチン高次構造の解析に用いることが可能である。ChIA-drop法の多点間のクロマチン相互作用を1分子の解像度で解析できるという特徴は、既存の方法では実現できなかった利点であり、この手法を用いることで広くクロマチン高次構造の研究が進展すると考えられる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (10 results)

All 2018 2017 2016 Other

All Int'l Joint Research (7 results) Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (1 results) (of which Int'l Joint Research: 1 results) Book (1 results)

  • [Int'l Joint Research] Children's hospital of Philadelphia(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] The Children’s Hospital of Philadelphia(米国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] The Children’s Hospital of Philadelphia(米国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] KK Women’s and Children’s Hospital/Genome Institute of Singapore/SingHealth Duke-NUS Medical School(シンガポール)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Hopital Robert Debre(France)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Universite de Liege(Belgium)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] St. Thomas’ Hospital(英国)

    • Related Report
      2016 Research-status Report
  • [Journal Article] ARCN1 Mutations Cause a Recognizable Craniofacial Syndrome Due to COPI-Mediated Transport Defects.2016

    • Author(s)
      Izumi K, Brett M, Nishi E, Drunat S, Tan ES, Fujiki K, Lebon S, Cham B, Masuda K, Arakawa M, Jacquinet A, Yamazumi Y, Chen ST, Verloes A, Okada Y, Katou Y, Nakamura T, Akiyama T, Gressens P, Foo R, Passemard S, Tan EC, El Ghouzzi V, Shirahige K.
    • Journal Title

      Am J Hum Genet.

      Volume: 99(2) Issue: 2 Pages: 451-9

    • DOI

      10.1016/j.ajhg.2016.06.011

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Development of a New Research Method for Multi-contact Genomic Interaction Analysis.2018

    • Author(s)
      藤木克則, 細川正人, 竹山春子, 白髭克彦
    • Organizer
      第41回日本分子生物学会年会
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Book] シングルセル解析プロトコール2017

    • Author(s)
      菅野 純夫
    • Total Pages
      352
    • Publisher
      羊土社
    • ISBN
      9784758122344
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2022-02-22  

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