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Investigation of self and non-self discrimination mechanism by M-ficolin based on 2-state conformational equilibrium model

Research Project

Project/Area Number 20770132
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Biophysics
Research InstitutionMitsubishi Kagaku Institute of Life Sciences

Principal Investigator

TANIO Michikazu  Mitsubishi Kagaku Institute of Life Sciences, 研究部門・蛋白質立体構造研究グループ, 特別研究員 (10416662)

Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords自然免疫 / 異物認識 / 構造平衡 / フィコリン / NMR / Brevibacillus choshinensis / 蛋白質 / 生物物理
Research Abstract

ヒトM-フィコリンの病原体認識には、活性型-不活性型間の2状態構造平衡が重要であるという仮説の検証を通して、その異物認識機構の解明を試みた。その結果、pH依存性2状態平衡の存在を証明し、それに関与する残基の同定に成功した。またM-フィコリンと、C反応性蛋白質との相互作用機構について新たな知見を得た。さらにM-フィコリンのNMR解析のためのBrevibacillus発現系を用いた新規安定同位体標識法の確立に成功した。

Report

(3 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • Research Products

    (13 results)

All 2009 2008

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (7 results)

  • [Journal Article] Binding site of C-reactive protein on M-ficolin2009

    • Author(s)
      Tanio, M., Wakamatsu, K., Kohno, T
    • Journal Title

      Mol. Immunol 47

      Pages: 215-221

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Amino acid-selective isotope labeling of proteins for nuclear magnetic resonance study: Proteins secreted by Brevibacillus choshinensis2009

    • Author(s)
      Tanio, M., Tanaka, R., Tanaka, T., Kohno, T
    • Journal Title

      Analytical Biochemistry 386

      Pages: 156-160

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Histidine -regulated activity of M-ficolin2009

    • Author(s)
      Tanio, M., Kohno, T
    • Journal Title

      Biochemical Journal 417

      Pages: 485-491

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Binding site of C-reactive protein on M-ficolin2009

    • Author(s)
      Michikazu Tanio
    • Journal Title

      Molecular Immunology 47

      Pages: 215-221

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Histidine-regulated activity of M-ficolin2009

    • Author(s)
      Michikazu Tanio
    • Journal Title

      Biochemical Journal 417

      Pages: 485-491

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Amino acid-selective isotope labeling of proteins for nuclear magnetic resonance study: Proteins secreted by Brevibacillus choshinensis2009

    • Author(s)
      Michikazu Tanio
    • Journal Title

      Analytical Biochemistry 386

      Pages: 156-160

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] Brevibacillus choshinensis分泌発現系を用いたアミノ酸選択的安定同位体標識試料作成2009

    • Author(s)
      谷生道一、楠英樹、田中利好、田中剛史、河野俊之
    • Organizer
      第48回NMR討論会
    • Place of Presentation
      九州大学医学部百年講堂
    • Related Report
      2009 Annual Research Report 2009 Final Research Report
  • [Presentation] M-フィコリンのC反応性タンパク質結合部位2009

    • Author(s)
      谷生道一、河野俊之
    • Organizer
      日本生物物理学会第47回年会
    • Place of Presentation
      アスティとくしま
    • Related Report
      2009 Annual Research Report 2009 Final Research Report
  • [Presentation] Brevibacillus choshinensisを用いた組換えタンパク質の分泌生産および安定同位体標識試料調製2009

    • Author(s)
      谷生道一、田中利好、田中剛史、河野俊之
    • Organizer
      日本蛋白質科学会第9回年会
    • Place of Presentation
      熊本全日空ホテルニュースカイ
    • Related Report
      2009 Annual Research Report 2009 Final Research Report
  • [Presentation] M-フィコリンの3価認識単位の構造平衡2008

    • Author(s)
      谷生道一、近藤伸、杉尾成俊、河野俊之
    • Organizer
      日本生物物理学会第46回年会
    • Place of Presentation
      福岡国際会議場
    • Related Report
      2009 Final Research Report
  • [Presentation] Brevibacillus choshinensis分泌発現系を用いた15N安定同位体標識試料作成2008

    • Author(s)
      谷生道一、田中利好、田中剛史、河野俊之
    • Organizer
      第47回NMR討論会
    • Place of Presentation
      筑波大学
    • Related Report
      2009 Final Research Report
  • [Presentation] Brevibacillus choshinensis分泌発現系を用いた^<15>N安定同位体標識試料作成2008

    • Author(s)
      谷生 道一
    • Organizer
      第47回NMR討論会
    • Place of Presentation
      筑波大学
    • Related Report
      2008 Annual Research Report
  • [Presentation] M-フィコリンの3価認識単位の構造平衡2008

    • Author(s)
      谷生道一
    • Organizer
      第46回生物物理学会年会
    • Place of Presentation
      福岡国際会議場
    • Related Report
      2008 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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