Identification of troponin-I of crayfish myofibrils.

  • Shinoda Yasuhiko
    Department of Chemistry, Faculty of Science, Hokkaido University
  • Yamada Akiko
    Department of Chemistry, Faculty of Science, Hokkaido University
  • Yagi Koichi
    Department of Chemistry, Faculty of Science, Hokkaido University

抄録

Crayfish (Procambarus clarkii) myofibrils contain two basic proteins of molecular weights of 25, 000 and 23, 000. Both of the two proteins inhibit actomyosin ATPase as the vertebrate troponin-I does. These results differ from the previous one that troponin-I of crayfish (Astacus leptodactylus) showed a single band on polyacrylamide gel electrophoresis in the presence of sodium dodecyl sulfate (SDS-PAGE).

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