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

四量体構造-機能相関解析に基づく癌抑制タンパク質p53の機能修復

Research Project

Project/Area Number 08J04981
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Chemistry related to living body
Research InstitutionHokkaido University

Principal Investigator

鎌田 瑠泉  北海道大学, 大学院・理学研究院, 特別研究員(PD)

Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2010: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2009: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2008: ¥600,000 (Direct Cost: ¥600,000)
Keywords癌抑制タンパク質p53 / 変異 / 四量体形成 / 安定化剤 / カリックスアレーン
Research Abstract

癌抑制タンパク質p53は様々な遺伝毒性ストレスに応答して活性化し、下流の種々の標的遺伝子の転写を活性化させて細胞周期停止・アポトーシスを誘導する。四量体形成はp53のDNA結合、翻訳後修飾、安定化に必須である。p53の変異はヒト悪性腫瘍で最も多く認められる異常であり、癌遺伝子治療の重要なターゲットの一つである。本研究では、四量体形成ドメインおよびDNA結合ドメインに変異を持つ変異型p53の機能回復を目指し、『四量体形成ドメイン変異型p53の構造を安定化させる新規化合物の開発』および『DNA結合ドメインの変異に対する非ヘテロオリゴマー形成性の改良型p53の開発』を目的としている。
前年度までに、二種のカリックス[6]アレーン誘導体を合成し、イミダゾリル基を持つイミダゾールカリックス[6]アレーンがp53-R337H変異体の四量体構造を安定化させることを明らかにしている。細胞内p53転写活性を解析する蛍光レポーターシステムを用い、カリックス[6]アレーン誘導体がp53の転写活性に及ぼす効果を解析した。その結果、四量体構造の安定化効果を示すイミダゾールカリックス[6]アレーンにより細胞内のp53-R337Hの転写活性を増加させることに成功した。また、R337H四量体構造の安定化を示さなかったピラゾールカリックス[6]アレーンでは転写活性に変化が見られなかったことから、イミダゾールカリックス[6]アレーンによる転写活性の増加は四量体構造の安定化を介した活性増加であることが示唆された。このカリックスアレーン誘導体による転写活性の増加は、p53の四量体構造を安定化した事による機能修復の初めての例である。

Report

(3 results)
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (26 results)

All 2011 2010 2009 2008

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (16 results)

  • [Journal Article] Probing Phenylalanine Environments in Oligomeric Structures with Pentafluoro phenylalanine and Cyclohexylalanine2011

    • Author(s)
      野村尚生
    • Journal Title

      Biopolymers

      Volume: (in press)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cancer-associated p53 tetramerization domain mutants : quantitative analysis reveals a low threshold for tumor suppressor inactivation2011

    • Author(s)
      鎌田瑠泉
    • Journal Title

      J.Biol.Chem.

      Volume: 286 Pages: 252-258

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhancement of transcriptional activity of mutant p53 tumor suppressor protein through stabilization of tetramer formation by calix[6]arene derivatives2010

    • Author(s)
      鎌田瑠泉
    • Journal Title

      Bioorg.Med.Chem.Lett.

      Volume: 20 Pages: 4412-4415

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tetramerization of tumor suppressor protein p532010

    • Author(s)
      鎌田瑠泉
    • Journal Title

      Seikagaku

      Volume: 82 Pages: 484-493

    • NAID

      10026899887

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inhibition of p53 by introducing tetramerization domain peptide fused with polyvalent cationic sequence into cells2010

    • Author(s)
      鎌田瑠泉
    • Journal Title

      Peptide Science 2009(in press)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Biomineralization activity of multivalent minTBP-1 peptide mediated by p53 tetramerization domain2010

    • Author(s)
      坂口達也
    • Journal Title

      peptide Science 2009(in press)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of a new cancer-associated mutant of p53 with a missense mutation (K351N) in the tetramerization domain2009

    • Author(s)
      Muscolini, M.
    • Journal Title

      Cell Cycle 8

      Pages: 1-10

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oxidation of Methionine Residue at Hydrophobic Core Destabilizes p53 Tetrameric Structure2009

    • Author(s)
      野村尚生
    • Journal Title

      Biopolymers 91

      Pages: 78-84

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of transcriptional activity of p53 in individual living mammalian cells2009

    • Author(s)
      今川敏明
    • Journal Title

      Analytical Biochemistry 387

      Pages: 249-256

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermal Stability of p53 Tetramerization Domain Peptides Derived from Various Species2008

    • Author(s)
      野村尚生
    • Journal Title

      Peptide Science 2008

      Pages: 35-36

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] ヘテロオリゴマー形成を介したp53四量体形成ペプチドの細胞導入によるp53転写活性の抑制2011

    • Author(s)
      和田隼弥
    • Organizer
      化学系学協会北海道支部2011年冬期研究発表会
    • Place of Presentation
      北海道大学
    • Related Report
      2010 Annual Research Report
  • [Presentation] 癌抑制タンパク質p53の四量体形成ドメイン変異が四量体形成・転写活性に及ぼす影響2010

    • Author(s)
      鎌田瑠泉
    • Organizer
      第47回日本生化学会北海道支部例会
    • Place of Presentation
      北海道大学
    • Year and Date
      2010-07-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] Quantitative analysis reveals the low threshold of destabilization for dysfunction of tumor suppressor activity of p532010

    • Author(s)
      鎌田瑠泉
    • Organizer
      18th International Meeting of Methods in Protein Structure Analysis conference
    • Place of Presentation
      Norrlands nation, Uppsala, Sweden
    • Related Report
      2010 Annual Research Report
  • [Presentation] Inhibition of p53 transcriptional activity by hetero-oligomerization with tetramerization domain peptide fused with protein transduction domain2010

    • Author(s)
      鎌田瑠泉
    • Organizer
      18th International Meeting of Methods in Protein Structure Analysis conference
    • Place of Presentation
      Norriands nation, Uppsala, Sweden
    • Related Report
      2010 Annual Research Report
  • [Presentation] Low Threshold of Destabilization for Loss of Tumor Suppressor Activity of p53 : A Quantitative Analysis of p53 Tetramerization Domain Mutants2010

    • Author(s)
      鎌田瑠泉
    • Organizer
      5th International Peptide Symposium
    • Place of Presentation
      京都国際会議場
    • Related Report
      2010 Annual Research Report
  • [Presentation] Effect of Peptide Oligomerization Mediated by p53 Tetramerization Domain on Biomineralization Activity2010

    • Author(s)
      坂口達也
    • Organizer
      5th International Peptide Symposium
    • Place of Presentation
      京都国際会議場
    • Related Report
      2010 Annual Research Report
  • [Presentation] Repression of p53 transcriptional activity by p53 tetramerization domain peptide containing PTD and NLS domain2010

    • Author(s)
      和田隼弥
    • Organizer
      5th International Peptide Symposium
    • Place of Presentation
      京都国際会議場
    • Related Report
      2010 Annual Research Report
  • [Presentation] 変異型p53四量体構造のカリックスアレーン誘導体による安定化2009

    • Author(s)
      鎌田瑠泉
    • Organizer
      北海道支部2009夏期研究発表会
    • Place of Presentation
      苫小牧工業高等学校
    • Year and Date
      2009-07-11
    • Related Report
      2009 Annual Research Report
  • [Presentation] Effects of tumor-associated mutations in tetramerization domain of p53 on its tetrameric structure and phosphorylation2009

    • Author(s)
      鎌田瑠泉
    • Organizer
      VIII European Symposium of The Protein Society
    • Place of Presentation
      Zurich, Switzerland
    • Related Report
      2009 Annual Research Report
  • [Presentation] Inhibition of p53 by introducing tetramerization domain peptide fused with polyvalent cationic sequence into cells2009

    • Author(s)
      鎌田瑠泉
    • Organizer
      第46回ペプチド討論会
    • Place of Presentation
      北九州国際会議場
    • Related Report
      2009 Annual Research Report
  • [Presentation] Biomineralization activity of multivalent minTBP-1 peptide mediated by p53 tetramerization domain2009

    • Author(s)
      坂口達也
    • Organizer
      第46回ペプチド討論会
    • Place of Presentation
      北九州国際会議場
    • Related Report
      2009 Annual Research Report
  • [Presentation] 癌抑制タンパク質p53の四量体構造-転写活性の相関解析2008

    • Author(s)
      鎌田瑠泉
    • Organizer
      日本分子生物学会 第8回春季シンポジウム
    • Place of Presentation
      京王プラザホテル札幌
    • Related Report
      2008 Annual Research Report
  • [Presentation] Effects of thermodynamic stability on expression Level of p53 tetramerization domain peptide in E. coli2008

    • Author(s)
      宮崎広充
    • Organizer
      17th Meeting of Methods in Protein Structure Analysis
    • Place of Presentation
      北海道大学学術振興会館
    • Related Report
      2008 Annual Research Report
  • [Presentation] Quantitative analysis of oligomeric stability and transcriptional activity of tumor suppressor protein p532008

    • Author(s)
      鎌田瑠泉
    • Organizer
      17th Meeting of Methods in Protein Structure Analysis
    • Place of Presentation
      北海道大学学術振興会館
    • Related Report
      2008 Annual Research Report
  • [Presentation] Analysis of stability for p53 tetramerization domain peptides derived from various species2008

    • Author(s)
      野村尚生
    • Organizer
      17th Meeting of Methods in Protein Structure Analysis
    • Place of Presentation
      北海道大学学術振興会館
    • Related Report
      2008 Annual Research Report
  • [Presentation] Thermal Stability of p53 Tetramerization Domain Peptides Derived from Various Species2008

    • Author(s)
      野村尚生
    • Organizer
      第45回 ペプチド討論会
    • Place of Presentation
      タワーホール船堀(東京)
    • Related Report
      2008 Annual Research Report

URL: 

Published: 2008-04-01   Modified: 2024-03-26  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi