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受容体分子認識における多重特異性発現機構の定量的解明

Research Project

Project/Area Number 18038007
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionThe University of Tokyo

Principal Investigator

津本 浩平  東京大学, 大学院新領域創成科学研究科, 助教授 (90271866)

Project Period (FY) 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2006: ¥1,800,000 (Direct Cost: ¥1,800,000)
Keywords蛋白質 / 分子認識 / バイオテクノロジー / 受容体 / 特異性 / 熱力学 / 相互作用
Research Abstract

本研究では、配列相同性が低い複数の受容体リガンド複合体が共通の受容体によって認識され三者複合体が形成された後に細胞内にシグナルを伝達できる仕組みにまず着目し、蛋白質問相互作用における多重特異性創出の分子機構の定量的解明を目指している。
(1)相互作用を特異的にブロックできる抗体、ペプチドのファージディスプレイを用いた選択とその機能・構造評価
ファージディスプレイを用いて複数のクローンを得、サイトカイン-受容体複合体と共通γ鎖の相互作用を特異的に阻害できる分子種の選択システムの開発を検討している。
(2)相互作用各段階の熱力学的解析ならびに結晶構造解析
確立してある発現・調製系を用いてサイトカイン、受容体と共通γ鎖、ならびにサイトカイン-受容体融合蛋白質を調製、得られた分子種を用いて、等温滴定型熱量測定により相互作用を解析した。各段階における実測エンタルピー値から相互作用機構を議論することができた。これらの解析結果を基に、サイトカイン-受容体相互作用における、多重特異性創出の分子機構を議論し、今後展開を予定しているシグナル伝達系での相互作用ネットワークにおける、多重特異性創出の分子機構に関する定量的解明の礎を築くことができた。

Report

(1 results)
  • 2006 Annual Research Report
  • Research Products

    (24 results)

All 2007 2006

All Journal Article (21 results) Book (3 results)

  • [Journal Article] Circular dichroism spectra demonstrate formation of the thrombin-binding DNA aptamer G-quadruplex under stabilizing-cation-deficient conditions.2007

    • Author(s)
      Nagatoishi S et al.
    • Journal Title

      Biochem. Biophys. Res. Comm. 352

      Pages: 812-817

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Structural and Mutational analyses of Drp35 from Staphylococcus aureus : a possible mechanism for its lactonase activity.2007

    • Author(s)
      Tanaka Y et al.
    • Journal Title

      J. Biol. Chem. 282

      Pages: 5770-5780

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Effects of acid exposure on the conformation, stability, and aggregation of monoclonal antibodies.2007

    • Author(s)
      Ejima D et al.
    • Journal Title

      Proteins : Structure, Function, and Bioinformatics 66

      Pages: 954-962

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Improved performance of column chromatography by arginine : Dye-affinity chromatography.2007

    • Author(s)
      Arakawa T et al.
    • Journal Title

      Protein Expr. Purif. 52

      Pages: 410-414

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Molecular properties of two proteins homologous to PduO-type ATP : cob(I)alamin adenosyltransferase from Sulfolobus tokodaii.2007

    • Author(s)
      Tanaka Y et al.
    • Journal Title

      Proteins : Structure, Function, and Bioinformatics (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Crystal structure analysis reveals a novel forkhead-associated (FHA) domain of ESAT-6 secretion system C (EssC) protein in Staphylococcus aureus.2007

    • Author(s)
      Tanaka Y et al.
    • Journal Title

      Proteins : Structure, Function, and Bioinformatics (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Structural consequences of mutations in interfacial Tyr residues of a protein antigen-antibody complex : The case of HyHEL-10-HEL.2007

    • Author(s)
      Shiroishi M et al.
    • Journal Title

      J. Biol. Chem. (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Induced binding of proteins by ammonium sulfate in affinity and ion-exchange column chromatography.2007

    • Author(s)
      Arakawa T et al.
    • Journal Title

      J. Biochem. Biophys. Methods (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Suppression of protein interactions by arginine : A proposed mechanism of arginine effects.2007

    • Author(s)
      Arakawa T et al.
    • Journal Title

      Biophys. Chem. (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Arginine improves protein elution in hydrophobic interaction chromatography. The cases of human interleukin-6 and activin-A.2007

    • Author(s)
      Tsumoto K et al.
    • Journal Title

      J. Chromatogr. A (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Effects of salts on protein-surface interactions : applications for column chromatography.2007

    • Author(s)
      Tsumoto K et al.
    • Journal Title

      J. Pharmaceut. Sci. (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Aggregation analysis of therapeutic proteins, part 12006

    • Author(s)
      Arakawa T et al.
    • Journal Title

      Bioprocess International 4 (10)

      Pages: 42-49

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Structural basis for recognition of the nonclassical MHC molecule HLA-G by the leukocyte Ig-like receptor B2 (LILRB2/LIR2/ILT4/CD85d)2006

    • Author(s)
      Shiroishi M et al.
    • Journal Title

      Proc. Natl. Acad. Sci. USA 103

      Pages: 16412-16417

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Small molecule pharmacological chaperones : From thermodynamic stabilization to pharmaceutical drugs.2006

    • Author(s)
      Arakawa T et al.
    • Journal Title

      Biochim. Biophys. Acta. 1764

      Pages: 1677-1687

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Humanization of the bispecific epidermal growth factor receptor x CD3 diabody and its efficacy as a potential clinical reagent.2006

    • Author(s)
      Asano R et al.
    • Journal Title

      Clin. Cancer Res. 12

      Pages: 4036-4042

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Efficient leukocyte Ig-like receptor signaling and crystal structure of disulfide-linked HLA-G dimer.2006

    • Author(s)
      Shiroishi M et al.
    • Journal Title

      J. Biol. Chem. 281

      Pages: 20439-20447

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Entropically driven MHC class I recognition by human inhibitory receptor leukocyte Ig-like receptor B1 (LILRB1/ILT2/CD85j).2006

    • Author(s)
      Shiroishi M et al.
    • Journal Title

      J. Mol. Biol. 355

      Pages: 237-248

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A novel "reverse screening" to identify refolding additives for activin-A.2006

    • Author(s)
      Ejima D et al.
    • Journal Title

      Protein Expr. Purif. 47

      Pages: 45-51

    • Related Report
      2006 Annual Research Report
  • [Journal Article] プロテインマニピュレーション : 蛋白質リフォールディングの最先端2006

    • Author(s)
      津本 浩平ら
    • Journal Title

      化学と生物

    • Related Report
      2006 Annual Research Report
  • [Journal Article] クロマトグラフィーにおける凝集抑制と溶媒制御2006

    • Author(s)
      津本 浩平ら
    • Journal Title

      生物工学会誌

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 蛋白質折りたたみの人工制御 : プロテインマニピュレーション2006

    • Author(s)
      津本 浩平ら
    • Journal Title

      未来材料

    • Related Report
      2006 Annual Research Report
  • [Book] ナノバイオ辞典2007

    • Author(s)
      津本 浩平(分担執筆)
    • Total Pages
      1000
    • Publisher
      エヌティーエス
    • Related Report
      2006 Annual Research Report
  • [Book] バイオプロダクション2006

    • Author(s)
      津本 浩平(分担執筆)
    • Total Pages
      180
    • Publisher
      コロナ社
    • Related Report
      2006 Annual Research Report
  • [Book] 生物物理学ハンドブック(分担執筆)2006

    • Author(s)
      津本 浩平
    • Total Pages
      500
    • Publisher
      朝倉書店
    • Related Report
      2006 Annual Research Report

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Published: 2006-04-01   Modified: 2018-03-28  

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