J. Biochem, 1988, Vol. 103, No. 4 636-640
© 1988 Japanese Biochemical Society
research-article |
Identification of Troponin-I of Crayfish Myofibrils
Department of Chemistry,Hokkaido University Kita-ku, Sapporo, Hokkaido 060
1To whom correspondence should be addressed.
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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