Stabilization of squid myosin subfragment-1 and myofibrils by ATP-related compounds

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Adenosine triphosphatase (ATPase) inactivation of squid myosin subfragment-1 (S-1) was strongly suppressed upon addition of adenylimidophosphate (AMPPNP), an analogous compound of adenosine triphosphate (ATP); whereas suppression by adenosine diphosphate (ADP) and pyrophosphate (PPi) was not as effective. Adenylimidophosphate did not stabilize myofibrils in which myosin is stabilized by F-actin. Thus, the stabilization effect by F-actin and AMPPNP is not additive. Pyrophosphate markedly accelerated the inactivation of myofibrils through the loss of protection by F-actin. The suppressive effect of F-actin on myosin ATPase inactivation was much greater than that by AMPPNP. The stabilization effects of AMPPNP and F-actin on S-1 were almost completely lost when the medium contained approximately 1 M KCl.

収録刊行物

  • Fisheries science : FS

    Fisheries science : FS 68(1), 222-226, 2002-02

    The Japanese Society of Fisheries Science

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各種コード

  • NII論文ID(NAID)
    10008272723
  • NII書誌ID(NCID)
    AA10993718
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09199268
  • NDL 記事登録ID
    6060631
  • NDL 雑誌分類
    ZR26(科学技術--農林水産--水産)
  • NDL 請求記号
    Z54-H592
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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