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Molecular mechanism of stop codon-independent translation termination

Research Project

Project/Area Number 24570008
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Genetics/Genome dynamics
Research InstitutionOkayama University

Principal Investigator

ABO Tatsuhiko  岡山大学, 自然科学研究科, 准教授 (90303601)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
KeywordsArfA / リボソーム / 翻訳 / 大腸菌 / バクテリア / RF2 / mRNA / リボソームレスキュー / ArfB / 翻訳終結
Outline of Final Research Achievements

I have shown that, 1) ArfA cooperates with RF2 to release the ribosomes stalled at the end of non-stop mRNAs, 2) overall positive charge of the lysine-rich region of ArfA is important for its binding with ribosome, 3) ArfA binds to the rRNA regions corresponding to the position of mRNA path and decoding center. These findings may help understanding further how ArfA releases the ribosome stalled at the end of non-stop mRNAs.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (15 results)

All 2015 2014 2013 2012

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results,  Acknowledgement Compliant: 1 results) Presentation (11 results) (of which Invited: 1 results)

  • [Journal Article] ArfA recognizes the lack of mRNA in the mRNA channel after RF2 binding for ribosome rescue.2014

    • Author(s)
      Daisuke Kurita, Yuhei Chadani, Tatsuhiko Abo, Hyouta Himeno
    • Journal Title

      Nucleic Acids Res.

      Volume: 42 Issue: 21 Pages: 13339-13352

    • DOI

      10.1093/nar/gku1069

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ribosome rescue systems in bacteria. Biochimie2014

    • Author(s)
      Himeno, H., Nameki, N., Kurita, D., Muto, A. & Abo T.
    • Journal Title

      Biochimie

      Volume: pii: S0300-9084(14) Pages: 00355-1

    • DOI

      10.1016/j.biochi.2014.11.014

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] The fail-safe system to rescue the stalled ribosomes in Escherichia coli.2014

    • Author(s)
      Tatsuhiko Abo, Yuhei Chadani
    • Journal Title

      Front. Microbiol

      Volume: 5 Pages: 1-7

    • DOI

      10.3389/fmicb.2014.00156

    • Related Report
      2014 Annual Research Report 2013 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] ArfA recruits release factor 2 to rescue stalled ribosomes by peptidyl-tRNA hydrolysis in Escherichia coli.2012

    • Author(s)
      Chadani y Ito K, Kutsukake K, Abo T.
    • Journal Title

      Molecular Microbiology

      Volume: 86 Issue: 1 Pages: 37-50

    • DOI

      10.1111/j.1365-2958.2012.08190.x

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] 大腸菌ArfAタンパク質アミノ酸置換変異体とリボソームとの相互作用2015

    • Author(s)
      阿保達彦
    • Organizer
      第3回リボソームミーティング
    • Place of Presentation
      宮崎市
    • Year and Date
      2015-03-17 – 2015-03-18
    • Related Report
      2014 Annual Research Report
  • [Presentation] 大腸菌リボソーム解放因子ArfAアミノ酸置換変異体の解析2014

    • Author(s)
      森木省伍,花房賢,天野剛志,廣明秀一,阿保達彦
    • Organizer
      日本遺伝学会第86回大会
    • Place of Presentation
      長浜市
    • Year and Date
      2014-09-17 – 2014-09-19
    • Related Report
      2014 Annual Research Report
  • [Presentation] 大腸菌ArfAタンパク質のリボソーム結合能2014

    • Author(s)
      阿保 達彦、茶谷 悠平、柴谷知宏、大川成美
    • Organizer
      第16回日本RNA学会年会
    • Place of Presentation
      名古屋市
    • Year and Date
      2014-07-23 – 2014-07-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 変異導入による大腸菌ArfAタンパク質の解析2013

    • Author(s)
      阿保達彦,岸本真幸,茶谷悠平,Pajak Aleksandra
    • Organizer
      第15回日本RNA学会年会
    • Place of Presentation
      愛媛県松山市
    • Related Report
      2013 Research-status Report
  • [Presentation] 大腸菌ArfAによるリボソームレスキュー2013

    • Author(s)
      阿保達彦,茶谷悠平,沓掛和弘
    • Organizer
      日本遺伝学会第85回大会
    • Place of Presentation
      神奈川県横浜市
    • Related Report
      2013 Research-status Report
  • [Presentation] RF2 is required for ArfA-dependent ribosome rescue in E. coli2012

    • Author(s)
      Yuhei Chadani, Koreaki Ito, Kazuhiro Kutsukake and Tatsuhiko Abo
    • Organizer
      2nd Molecular Microbiology Meeting Würzburg
    • Place of Presentation
      Würzburg, Germany
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] 大腸菌で見出された新規リボソーム解放機構とその生理学的意義2012

    • Author(s)
      茶谷悠平,伊藤維昭,沓掛和弘,阿保達彦
    • Organizer
      第9回21世紀大腸菌研究会
    • Place of Presentation
      長浜市
    • Related Report
      2012 Research-status Report
  • [Presentation] Nascentome:合成途上鎖の解析2012

    • Author(s)
      伊藤維昭,茶谷悠平,中森健太,千葉志信,秋山芳展,阿保達彦
    • Organizer
      第9回21世紀大腸菌研究会
    • Place of Presentation
      長浜市
    • Related Report
      2012 Research-status Report
  • [Presentation] 大腸菌合成致死スクリーニングによるリボソーム解放因子ArfAの単離2012

    • Author(s)
      阿保達彦,沓掛和弘,茶谷悠平,小野勝彦
    • Organizer
      第9回21世紀大腸菌研究会
    • Place of Presentation
      長浜市
    • Related Report
      2012 Research-status Report
  • [Presentation] アラニンスキャニングによる大腸菌ArfAの機能構造解析2012

    • Author(s)
      岸本真幸,茶谷悠平,森川淳基,阿保達彦
    • Organizer
      日本遺伝学会第84回大会
    • Place of Presentation
      福岡市
    • Related Report
      2012 Research-status Report
  • [Presentation] ArfA-mediated ribosome rescue in Escherichia coli2012

    • Author(s)
      Yuhei Chadani, Katsuhiko Ono, Emi Matsumoto, Masayuki Kishimoto, Kosuke Nishioka, Kazuya Nishigaki, Yuma Oka, Junki Morikawa and *Tatsuhiko Abo
    • Organizer
      Symposium on Interdisciplinary Researches in Okayama
    • Place of Presentation
      Okayama
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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