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Role and mechanism of action of mammalian Elongin A in the stress response

Research Project

Project/Area Number 21590311
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field General medical chemistry
Research InstitutionKochi University

Principal Investigator

ASO Teijiro  高知大学, 教育研究部・医療学系, 教授 (20291289)

Co-Investigator(Renkei-kenkyūsha) KITAJIMA Shigetaka  東京医科歯科大学, 難治疾患研究所, 教授 (30186241)
Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
KeywordsElongin / 転写伸長因子 / ユビキチンリガーゼ / ストレス応答 / 発現制御 / RNAポリメラーゼII / RANポリメラーゼII / ストレス
Research Abstract

Elongin A increases the rate of RNA polymerase II(pol II) transcript elongation by suppressing transient pausing by the enzyme. Elongin A also acts as a component of a ubiquitin ligase(E3) that can target stalled pol II for ubiquitylation and proteasome. dependent degradation. It is not known whether these activities of Elongin A are functionally interdependent in vivo. Here, we demonstrate that Elongin A-knockdown cells exhibit defects in the stress-inducible expression of HSP70 and ATF3 genes. Moreover, we identify Elongin A mutations that selectively inactivate one or the other of the above activities, and show that the elongation stimulatory, but not pol II ubiquitylation, activity of Elongin A is required to support the response of stress genes.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (11 results)

All 2011 2010 2009 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (8 results) Remarks (1 results)

  • [Journal Article] Degradation of p21^<Cip1> through APC/ C^<Cdc20> mediated ubiquitylation is inhibited by cyclin dependent kinase 2 in cardiomyocytes2011

    • Author(s)
      Yamada K, Tamamori-Adachi M, Goto I, Iizuka M, Yasukawa T, Aso T, Okazaki T, and Kitajima S
    • Journal Title

      J. Biol. Chem

      Volume: Vol.286 Pages: 44057-44066

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Degradation of p21^<Cip1> through APC/C^<Cdc20> mediated ubiquitylation is inhibited by cyclin dependent kinase 2 in cardiomyocytes2011

    • Author(s)
      Yamada K
    • Journal Title

      J.Biol.Chem.

      Volume: 286 Pages: 44057-44066

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] CDK2が心筋細胞におけるAPC/ CCdc20ユビキチンリガーゼを介するp21のユビキチン化を抑制する2011

    • Author(s)
      安達(玉盛)三美,他
    • Organizer
      第33回日本分子生物学会年会
    • Place of Presentation
      パシフィコ横浜(神奈川県)
    • Year and Date
      2011-12-16
    • Related Report
      2011 Final Research Report
  • [Presentation] CDK2が心筋細胞におけるAPC/C^<Cdc20>ユビキチンリガーゼを介するp21のユビキチン化を抑制する2011

    • Author(s)
      安達(玉盛)三美
    • Organizer
      第34回日本分子生物学会年会
    • Place of Presentation
      パシフィコ横浜(神奈川県)
    • Year and Date
      2011-12-16
    • Related Report
      2011 Annual Research Report
  • [Presentation] Transcriptional elongation factor Elongin A regulates retinoic acid-induced gene expression during neuronal differentiation of embryonic stem cells2011

    • Author(s)
      Takashi Yasukawa, et al
    • Organizer
      第34回日本分子生物学会年会
    • Place of Presentation
      パシフィコ横浜(神奈川県)
    • Year and Date
      2011-12-15
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] ストレス反応におけるmammalian Elongin Aの特徴と役割2011

    • Author(s)
      Makoto Inoue, et al
    • Organizer
      第33回日本分子生物学会年会
    • Place of Presentation
      パシフィコ横浜(神奈川県)
    • Year and Date
      2011-12-15
    • Related Report
      2011 Final Research Report
  • [Presentation] ストレス反応におけるmammalian Elongin Aの特徴と役割2011

    • Author(s)
      Makoto Inoue
    • Organizer
      第34回日本分子生物学会年会
    • Place of Presentation
      パシフィコ横浜(神奈川県)
    • Year and Date
      2011-12-15
    • Related Report
      2011 Annual Research Report
  • [Presentation] Elongin A複合体によるRNA polymerase IIポリユビキチン化の制御2010

    • Author(s)
      安川孝史,他
    • Organizer
      第33回日本分子生物学会年会
    • Place of Presentation
      神戸ポートアイランド(兵庫県)
    • Year and Date
      2010-12-07
    • Related Report
      2011 Final Research Report 2010 Annual Research Report
  • [Presentation] Mammalian Elongin A complex mediates DNA-damage-induced ubiquitylation and degradation of Rpbl2009

    • Author(s)
      Aso, T.
    • Organizer
      ASBMB 2009
    • Place of Presentation
      Ernest N. Morial Convention Center(New Orleans, USA)
    • Year and Date
      2009-04-22
    • Related Report
      2009 Annual Research Report
  • [Presentation] Mammalian Elongin A complex mediates DNA-damage-induced ubiquitylation and degradation of Rpb12009

    • Author(s)
      Aso T. et al
    • Organizer
      Ernest N. Morial Convention Center
    • Place of Presentation
      New Orleans, USA
    • Related Report
      2011 Final Research Report
  • [Remarks]

    • URL

      http://www.kochi-ms.ac.jp/-fg_chmst/researchi.htm

    • Related Report
      2011 Final Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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