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Development of membrane-protein produciton system at low temperatures via bacterial tailor-made membrane vesicles

Research Project

Project/Area Number 16K14885
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Applied microbiology
Research InstitutionKyoto University

Principal Investigator

Kawamoto Jun  京都大学, 化学研究所, 准教授 (90511238)

Research Collaborator Corsaro Maria Michela  , Dr.
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsouter membrane vesicles / Shewanella / psychrotroph / 菌体外膜小胞 / Outer membrane vesicles / 異種タンパク質生産 / Psychrotroph / Psychrophile / Outer membrane vesicle / 低温菌 / 極限環境微生物
Outline of Final Research Achievements

Shewanella sp. HM13, a cold-adapted bacterium isolated from intestine of Horse mackerel, secretes membrane vesicles harboring a functionally unknown membrane protein, P49, as a single major cargo. In this study, we developed a heterologous protein production system via the vesiculation of this strain. When eGFP-fused P49 producing strain was constructed by homologous recombination, the fusion protein was localized at the membrane vesicle fraction, indicating that P49-selective cargo loading system is available for secretion protein production system via the vesiculation.

Academic Significance and Societal Importance of the Research Achievements

膜タンパク質は、エネルギー生産や呼吸、シグナル伝達といった生物にとって重要な生理機能を担うものが多い。一方で、個々の膜タンパク質の機能発現メカニズムや立体構造の理解は限定的である。これは、疎水性に富む膜タンパク質を生化学実験にもちいるのに十分量を調製することが困難であることが大きい。現在までに大腸菌や酵母、昆虫細胞や無細胞タンパク質生産システムといった多様な異種タンパク質生産システムが利用されているが、種々の解析にもちいる程の生産量が見込まれるものは少ない。本研究では、菌体外膜小胞を高生産する低温菌を宿主とする異種タンパク質生産システムを構築した。

Report

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

    (9 results)

All 2018 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (3 results) (of which Peer Reviewed: 3 results,  Acknowledgement Compliant: 1 results) Presentation (5 results) (of which Int'l Joint Research: 2 results)

  • [Int'l Joint Research] University of Naples(イタリア)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Purification and characterization of 1-acyl-sn-glycerol-3-phosphate acyltransferase with a substrate preference for polyunsaturated fatty acyl donors from the eicosapentaenoic acid-producing bacterium Shewanella livingstonensis Ac102018

    • Author(s)
      Ogawa Takuya、Tanaka Asako、Kawamoto Jun、Kurihara Tatsuo
    • Journal Title

      The Journal of Biochemistry

      Volume: 印刷中 Issue: 1 Pages: 33-39

    • DOI

      10.1093/jb/mvy025

    • NAID

      40021625294

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Characterization of extracellular membrane vesicles of an Antarctic bacterium, Shewanella livingstonensis Ac10, and their enhanced production by alteration of phospholipid2017

    • Author(s)
      Yokoyama F, Kawamoto J, Imai T, Kurihara T
    • Journal Title

      Extremophiles

      Volume: 印刷中 Issue: 4 Pages: 723-731

    • DOI

      10.1007/s00792-017-0937-z

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Synthesis and Functional Assessment of a Novel Fatty Acid Probe, ω-Ethynyl Eicosapentaenoic Acid Analog, to Analyze the in Vivo Behavior of Eicosapentaenoic Acid2017

    • Author(s)
      Tokunaga Tomohisa、Watanabe Bunta、Sato Sho、Kawamoto Jun、Kurihara Tatsuo
    • Journal Title

      Bioconjugate Chemistry

      Volume: 28 Issue: 8 Pages: 2077-2085

    • DOI

      10.1021/acs.bioconjchem.7b00235

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 低温菌 Shewanella sp. HM13の膜小胞輸送による選択的タンパク質分泌に関与する遺伝子の探索2018

    • Author(s)
      釜阪 紘平Chen CHEN、横山 文秋、川本 純、今井 友也、小川 拓哉、栗原 達夫
    • Organizer
      日本農芸化学会 2018 年度大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 低温菌 Shewanella sp. HM13の膜小胞輸送による選択的タンパク質分泌に関与する遺伝子の探索2017

    • Author(s)
      釜阪 紘平、Chen CHEN、横山 文秋、川本 純、今井 友也、小川 拓哉、栗原 達夫
    • Organizer
      日本農芸化学会 2018 年度大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 低温菌 Shewanella sp. HM13 におけるベシクル分泌関連タンパク質の探索2017

    • Author(s)
      横山 文秋、川本 純、Chen CHEN、今井 友也、栗原 達夫
    • Organizer
      日本農芸化学会 2018 年度大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Analysis of Protein Secretion System of a Membrane-vesicle Producing Cold-adapted Bacterium, Shewanella sp. HM132016

    • Author(s)
      Chen Chen, Jun Kawamoto, Tomoya Imai, Tatsuo Kurihara
    • Organizer
      11th Extremophiles 2016
    • Place of Presentation
      京都
    • Year and Date
      2016-09-12
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Molecular Characterization of Eicosapentaenoic Acid-Containing Membrane Vesicles Produced by a Psychrotrophic Bacterium, Shewanella livistonensis Ac102016

    • Author(s)
      Yokoyama Fumiaki, Jun Kawamoto, Tomoya Imai, Tatsuo Kurihara
    • Organizer
      11th Extremophiles 2016
    • Place of Presentation
      京都
    • Year and Date
      2016-09-12
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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