• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Elucidation of a tRNA conversion mechanism of transsulfursome by the structural analysis of quaternary complex

Research Project

Project/Area Number 17H03637
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Structural biochemistry
Research InstitutionHokkaido University

Principal Investigator

Yao Min  北海道大学, 先端生命科学研究院, 教授 (40311518)

Co-Investigator(Kenkyū-buntansha) 尾瀬 農之  北海道大学, 先端生命科学研究院, 准教授 (80380525)
田中 良和  東北大学, 生命科学研究科, 教授 (20374225)
加藤 公児  北海道大学, 先端生命科学研究院, 助教 (30452428)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2019: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2018: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2017: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
KeywordsCys-tRNA(Cys) / transsulfursome / アミルアシルtRNA合成 / 間接合成経路 / X線結晶解析 / クライオ電子顕微鏡 / 小角散乱 / 結晶構造解析 / クライオ電顕解析 / 核酸 / 酵素 / cys-tRNA(cys) / X線結晶構造解析 / 間接合成 / アミノアシルtRNA合成 / 構造解析
Outline of Final Research Achievements

To translate the protein according to the genetic code on the ribosome, the aminoacyl-tRNA (aa-tRNA) must be synthesized correctly. Generally, the aminoacyl-tRNA synthetase (aaRS) directly catalyzes this synthesis. However, in methanogenic archaea, a ternary complex called transsulfursome (SepRS, SepCys, SepCysS) synthesizes Cys-tRNA(Cys) in an indirect pathway.
In this study, we analyzed the relationship of structure and function of transsulfursome-tRNA complex by using X-ray crystallography, small-angle X-ray scattering, electron microscopic observation, and biochemical methods. Taken results together, we understood the dynamic molecular mechanism for the Cys-tRNA(Cys) synthesis of the transsulfursome.

Academic Significance and Societal Importance of the Research Achievements

transsulfursomeは,aaRS誕生の足跡に残そた化石酵素である。得られた分子機構は遺伝暗号に関わる酵素の誕生と進化の理解を大きく前進させると期待できる.
また、リンカーで繋がった3つのドメインが異なる分子にそれぞれ結合して複雑な反応を可能にする本システムは,簡単な系からより複雑な系へ進化する過程の理解も前進させた.
さらに、リン酸化セリンを部位特異的にタンパク質に導入する技術は,ヒトの病気と密接に関係する研究にとって非常に重要であり,transsulfursomeの作用機序の解明は「タンパク質へのリン酸化セリンの自在な取り込み」を達成する上で非常に大きな一歩になる.

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (19 results)

All 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (10 results) (of which Int'l Joint Research: 5 results,  Invited: 3 results) Book (1 results) Remarks (2 results)

  • [Int'l Joint Research] MaxPlanck研究所(ドイツ)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] The pH-dependent conformational change of eukaryotic translation initiation factor 5: Insights into partner-binding manner2019

    • Author(s)
      Ye Yuxin、Chen Meirong、Kato Koji、Yao Min
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 519 Issue: 1 Pages: 186-191

    • DOI

      10.1016/j.bbrc.2019.08.128

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Neutron crystallographic study of heterotrimeric glutamine amidotransferase CAB2019

    • Author(s)
      Li Long、Adachi Motoyasu、Yu Jian、Kato Koji、Shinoda Akira、Ostermann Andreas、Schrader Tobias E.、Ose Toyoyuki、Yao Min
    • Journal Title

      Acta Crystallographica Section F Structural Biology Communications

      Volume: 75 Issue: 3 Pages: 193-196

    • DOI

      10.1107/s2053230x19000220

    • NAID

      120006727601

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Molecular basis of synthase complex for tRNA-dependent amino-acid cysteine biosynthesis2018

    • Author(s)
      姚 閔、陳 美容
    • Journal Title

      生化学

      Volume: 90 Issue: 4 Pages: 512-518

    • DOI

      10.14952/SEIKAGAKU.2018.900512

    • NAID

      40021670681

    • ISSN
      0037-1017
    • Year and Date
      2018-08-25
    • Related Report
      2018 Annual Research Report
  • [Journal Article] Structural basis for tRNA-dependent cysteine biosynthesis2017

    • Author(s)
      Chen Meirong、Kato Koji、Kubo Yume、Tanaka Yoshikazu、Liu Yuchen、Long Feng、Whitman William B.、Lill Pascal、Gatsogiannis Christos、Raunser Stefan、Shimizu Nobutaka、Shinoda Akira、Nakamura Akiyoshi、Tanaka Isao、Yao Min
    • Journal Title

      Nature Commun.

      Volume: 8 Issue: 1 Pages: 1521-1521

    • DOI

      10.1038/s41467-017-01543-y

    • NAID

      120006370606

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Biochemical and structural characterization of oxygen-sensitive 2-thiouridine synthesis catalyzed by an iron-sulfur protein TtuA2017

    • Author(s)
      Chen Minghao、Asai Shin-ichi、Narai Shun、Nambu Shusuke、Omura Naoki、Sakaguchi Yuriko、Suzuki Tsutomu、Ikeda-Saito Masao、Watanabe Kimitsuna、Yao Min、Shigi Naoki、Tanaka Yoshikazu
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 114 Issue: 19 Pages: 4954-4959

    • DOI

      10.1073/pnas.1615585114

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 間接経路によってCys-tRNACysを合成するタンパク質複合体transsulfursomeにおけるtRNA channelingメカニズムの解明2019

    • Author(s)
      河野 覚, 陳 美容, 于 健, 姚 閔
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Dynamic structure is requited for transslufursome on the Cys-tRNA(Cys) synthesis in indirect pathway2019

    • Author(s)
      Min Yao, Meirong Chen, Satoru Kono, Isao Tanaka
    • Organizer
      アジア結晶学会Asian Crystallographic Association2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Structural analysis platform for Native-SAD2019

    • Author(s)
      Yu Jian, Kato Koji, Tanaka Iso, Yao Min
    • Organizer
      International Symposium on Diffraction Structural Biology 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study on the tRNA channeling mechanism of transsulfursome for Cys-tRNA(Cys) synthesis in indirect pathway2018

    • Author(s)
      Satoru Kono, MeirongChen, Yume Kubo, Koji Kato, Min Yao
    • Organizer
      International Symposium on “Proteins; from the Cradle to the Grave”
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Attempting to adjust the elongation speed of the nascent cahin elongation on ribosome2018

    • Author(s)
      姚閔
    • Organizer
      International Symposium on “Proteins; from the Cradle to the Grave”
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 真核生物リボソームの生合成因子のマルチ機能の解析2018

    • Author(s)
      姚閔
    • Organizer
      第5回Ribosome Meeting
    • Related Report
      2018 Annual Research Report
  • [Presentation] 中性子回折によるアミド基転移酵素GatCABのアンモニア輸送機構解明の試み2018

    • Author(s)
      姚閔
    • Organizer
      平成30年度第1回構造生物学研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Nucleotide elongation in the reverse (3’-5’) direction by TLP(Thg1-Like Protein)2017

    • Author(s)
      姚閔
    • Organizer
      第15回、中国生化学と薬理学学会年会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Challenging to visualize ammonia transposition in a channel of amidotransferase GatCAB using neutron macromolecular crystallography2017

    • Author(s)
      姚閔
    • Organizer
      第55回日本生物物理学会年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] SAXS解析によるtranssulfursome のダイナミクス研究の事例2017

    • Author(s)
      姚閔
    • Organizer
      第4回タンパク質X線溶液散乱講習会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Book] 生化学2018

    • Author(s)
      姚 閔、陳 美容
    • Total Pages
      7
    • Publisher
      化学同人
    • Related Report
      2018 Annual Research Report
  • [Remarks] 研究室ホームページ

    • URL

      http://altair.sci.hokudai.ac.jp/g6/

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Remarks] 研究室のホームページ

    • URL

      http://altair.sci.hokudai.ac.jp/g6/

    • Related Report
      2017 Annual Research Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi