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プラスミノゲンアクチベータインヒビタ及びビトロネクチンの構造と機能に関する研究

Research Project

Project/Area Number 04671533
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Hematology
Research InstitutionJichi Medical University

Principal Investigator

三室 淳  自治医科大学, 医学部, 講師 (10221607)

Co-Investigator(Kenkyū-buntansha) 坂田 洋一  自治医科大学, 医学部, 助教授 (40129028)
Project Period (FY) 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1992: ¥2,000,000 (Direct Cost: ¥2,000,000)
Keywordsplasminogen activator / plasminogen activator inhibitor / vitronectin
Research Abstract

研究計画にのっとりPlasminogen activator inhibitor-1(PAl-1)の構造と機能の関連について検討した。PAl-1のターゲットとなる分子であるtissue-type plasminogen activator(tPA)とPAl-1、urokinase-type plasminogen activator(uPA)とPAl-1の分子反応機作について検討し、tPA及びuPAの非触媒ドメインに可逆的PAl-1結合部位を見いだし、これらの部位とPAl-1の反応がPAl-1によるtPAuPAの即時的阻害反応に重要であることを報告した。またPAl-1を結合しPAl-1の組織での反応に重要であると考えられているvitronectinのPAl-1の結合部位を検討した結果、7アミノ酸残基からなるペプチドセグメントがPAl-1との結合反応に重要であることを明かにし報告した。また、PAl-1を酵素で限定分解したのち逆相HPLCでPAL-1フラグメントを分取し、PAl-1フラグメントを検討した結果、PAl-1分子内のtPAのfinger domain結合部位を明かにしえた。

Report

(1 results)
  • 1992 Annual Research Report
  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] Munekiyo Kaneko: "Interaction between finger and kringle-2 domains of tissue-type plasminogen activator and plasminogen activator inhibitor-1." J.Biochem.111. 244-248 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Jun Mimuro: "Reversible interaction between plasminogen activators and plasminogen activator inhibitor-1." Biochim.Biophys.Acta. 1160. 325-334 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Jun Mimuro: "Gene analysis of abnormal fibrinogens with mutation in the γ chain." Int.J.Hematology. 56. 129-134 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Jun Mimuro: "Identification of the plasminogen activator inhibitor-1 binding hepta-peptide in vitronectin." Biochemistry,.

    • Related Report
      1992 Annual Research Report
  • [Publications] Takashi Watanabe: "Fibrinolytic components in fetal membrane and in amniotic fluid." Am.J.Obstet.Gynecol.,.

    • Related Report
      1992 Annual Research Report
  • [Publications] Jun Mimuro: "An abnormal protein C(Protein C Yonago)with an aminoacid substitution of Gly for Arg-15 caused by a single base mutation of C to G in codon 57(CGG GGG):Deteriorated calcium-dependent conformation of the γ-carboxy-glutamic acid domain relevant to a thrombotic tendency." Int.J.Hematology,.

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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