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Regulatory mechanism in gene expression of regulatory proteins in cardiac and vascular smooth muscles

Research Project

Project/Area Number 01480249
Research Category

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

Allocation TypeSingle-year Grants
Research Field Circulatory organs internal medicine
Research InstitutionEhime University

Principal Investigator

HIWADA Kunio  Ehime University School of Medicine, Professor, 医学部, 教授 (00108391)

Co-Investigator(Kenkyū-buntansha) SHIGEMATSU Yuuji  Ehime University School of Medicine, Associate, 医学部附属病院, 助手 (90206087)
MURAKAMI Eiki  Ehime University School of Medicine, Ex-Associate Professor, 医学部, 助教授 (90110832)
SEKIYA Michihito  Ehime University Hospital, Lecturer, 医学部附属病院, 講師 (50171343)
KITAMI Yutaka  Ehime University School of Medicine, Associate, 医学部, 助手 (10234270)
HAMADA Mareomi  Ehime University School of Medicine, Associate Professor, 医学部, 助教授 (30127906)
Project Period (FY) 1989 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥6,500,000)
Fiscal Year 1991: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1990: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1989: ¥3,300,000 (Direct Cost: ¥3,300,000)
Keywordscalponin / thin filament / actomyosin MgATPase / SM22 / SM22cDNA cloning / calponin cDNA cloning / chicken gizzard / rat aorta / 血管平滑筋 / cDNAクロ-ニング / ラット大動脈 / 細い線維 / 平滑筋 / ミオシン軽鎖MgATPase / cDNA / SM22α / ミオシン軽鎖MgATPase活性 / ウシ大動脈
Research Abstract

Calponin is actin-, tropomyosin binding protein which we found in the smooth muscle cells. In this project we studied the localization of calponin in smooth muscle cell and the physiological function of calponin.
(1) We obtained thin filaments which contained actin, tropomyosin, caldesmon and calponin in molar rations of 7 : 0.9 : 0.6 : 0.7. Co-localization of actin and calponin was shown along stress fibers of smooth muscle cells from rat aorta.
(2) We studied the function of calponin in vitro. Calponin inhibited the actinactivated myosin MgATPase activity in a dose-dependent manner. This inhibition was Ca-independent. The decrease in enzymatic activity of myosin was correlated with binding of calponin to actin-tropgmypsin filaments. Caldesmon showed a further inhibition of the calponin-induced inhibition of MgATPase activity of the thiophosphorylated myosin. Calponin-induced inhibition of the myosin MgATPase was reversed by the addition of calmodulin in the presence of Ca. These results suggest that calponin acts as an inhibitory component of smooth muscle thin filaments.
(3) We performed cDNA cloning of SM22 from the chicken gizzard smooth muscle and rat aorta smooth muscle. Cloned cDNA encoding SM22 from the chicken gizzard smooth muscle had a total length of 1214bp and contained a single open reading frame which encodes 200 amino acids with a calculated molecular weight 22214. The predicted amino acid sequence was in complete agreement with the sequence determined by Pearlstone et al. who discovered the protein, except for two additional residues, isoleucine and serine at the C-terminus. The cDNA from rat aorta was 1186bp. in length and encoded 201 amino acids (Mr 22602). The predicted amino acid sequence showed an 85% Tdentity with the chicken gizzard SM22.

Report

(4 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • 1989 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] W.Nishida,M.Abe,K.Takahashi and K.Hiwada: "Do thin filaments of smooth muscle contain calponin?A new method for the preparation." FEBS Letters. 268. 165-168 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M.Abe,K.Takahashi and K.Hiwada: "Simplified co-purification of vascular smooth muscle calponin and caldesmon." Journal of Biochemistry. 107. 507-509 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] M.Abe,K.Takahashi and K.Hiwada: "Effect of calponin on actin-activated myosin ATPase activity." Journal of Biochemistry. 108. 835-838 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K.Takeuchi,K.Takahashi,M.Abe,W.Nishida,K.Hiwada,T.Nabeya and K.Maruyama: "Co-localization of immunoreactive forms of calponin with actin cytoskelton in platelets,fibroblast,and vascular smooth muscle." Journal of Biochemistry. 109. 311-316 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] W.Nishida,Y.Kitami,M.Abe and K.Hiwada: "Gene cloning and nucleotide sequence of SM22α from the chicken gizzard smooth muscle." Biochemistry International. 23. 663-668 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] W.Nishida,Y.Kitami and K.Hiwada: "Expressions of calponin and SM22 in vascular smooth muscle cells from rat aorta." Circulation Research.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Wataru Nishida, Masahiro Abe, Katsuhito Takahashi and Kunio Hiwada: "Do thin filaments of smooth muscle contain calponin? A new method for the preparation." FEBS Letters. 268. 165-168 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Masahiro Abe, Katsuhito Takahashi and Kunio Hiwada: "Simplified co-purification of vascular smooth muscle calponin and caldesmon" Journal of Biochemistry. 107. 507-509 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Masahiro Abe, Katsuhito Takahashi and Kunio Hiwada: "Effect of calponin on actin-activated myosin ATPase activity." Journal of Biochemistry. 108. 835-838 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Kikuko Takeuchi, Katsuhito Takahashi, Masahiro Abe, Wataru Nishida, Kunio Hiwada, Takashi Nabeya and Koscak Maruyama: "Co-localization of immunoreactive forms of calponin with actin cytoskeleton in platelets, fibroblasts, and vascular smooth muscle." Journal of Biochemistry. 109. 311-316 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Wataru Nishida, Yutaka Kitami, Masahiro Abe and Kunio Hiwada: "Gene cloning and nucleotide sequence of SM22alpha from the chicken gizzard smooth muscle." Biochemistry International. 23. 663-668 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Wataru Nishida, Yutaka Hitami and Kunio Hiwada: "Expression of calponin and SM22 in vascular smooth muscle cells from rat aorta." Circulation Research.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] W.Nishida,Y.Kitami,M.Abe and K.Hiwada: "Gene cloning and nucleotide sequence of SM 22 from the chicken gizzard smooth muscle." Biochemistry International. 23. 663-668 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] W.Nishida,Y.Kitami and K.Hiwada: "Expressions of calponin and SM22 in vascular smooth muscle cells from rat aorta" Circulation Research.

    • Related Report
      1991 Annual Research Report
  • [Publications] Masahiro Abe;Katsuhito Takahashi;<Kunio Hiwad>___ー: "Simplified coーpurification of vascular smooth muscle calponin and caldesmon" Journal of Biochemistry. 107. 507-509 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Wataru Nishida;Masahiro abe;Katsuhito Takahashi;<Kunio Hiwada>___ー: "Do thin filaments of smooth muscle contain calponin? ーA new method for the preparationー" FEBS Letters. 268. 165-168 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Masahiro Abe;Katsuhito Takahashi;<Kunio Hiwada>___ー: "Effect of calponin on actinーactivated myosin ATPase activity" Journal of Biochemistry. 108. 835-838 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Wataru Nishida;Yutaka Kitami;Masahiro Abe;<Kunio Hiwada>___ー: "Gene cloning and nucleotide sequence of SM22α from the chicken gizzard smooth muscle"

    • Related Report
      1990 Annual Research Report
  • [Publications] Katsuhito Takahashi;Masahiro Abe;Wataru Nishida;<Kunio Hiwada>___ー: "Calponin:A new protein component of smooth muscle thin filament"

    • Related Report
      1990 Annual Research Report
  • [Publications] Masahiro Abe,Katsuhito Takahashi,Kunio Hiwada: "Simplified Co-Purification of Vascular Smooth Muscle Calponin and Caldesmon" Journal of Biochemistry. 107. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] Wataru Nishida,Masahiro Abe,Katsuhito Takahashi,Kunio Hiwada: "Do Thin Filaments of Smooth Muscle Contain Calponin?-A New Method for the Preparation-" FEBS Letters.

    • Related Report
      1989 Annual Research Report
  • [Publications] Masahiro Abe,Katsuhito Takahashi,Kunio Hiwada: "Calponin Regulates the Tropomyosin-Enhanced Actin-Myosin Interaction:Effect of Calponin on the Activation of Myosin MgATPase Activity" Archives of Biochemistry and Biophysics.

    • Related Report
      1989 Annual Research Report
  • [Publications] Katsuhito Takahashi,Kunio Hiwada,Tatsuo Kokubu: "Calponin:A New Protein Component of Smooth Muscle Thin Filament"

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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