1. 1. Two types of muscle (white and yellowish) in the swimming leg of the blue crab were compared in respect to protein composition, electrophoretic patterns of protein fractions, myofibrillar ATPase activity and ultrastructure. 2. 2. Proportions of water-soluble and stroma protein fractions were larger in the yellowish than in the white muscle. Myofibrillar Ca2+-ATPase activity of white muscle was less thermostable than in the yellowish muscle counterpart. 3. 3. Electron microscopy showed that yellowish muscle was abundant in mitochondria, though the arrangement of thick and thin filaments hardly differ between the two types of muscles. 4. 4. The results obtained suggested that white and yellowish muscles of the blue crab correspond to fast and slow muscles, respectively.
|Number of pages||6|
|Journal||Comparative Biochemistry and Physiology -- Part B: Biochemistry and|
|Publication status||Published - 1988|
ASJC Scopus subject areas
- Molecular Biology