Protein Components and Their Roles in Sarcoplasmic Reticulum Function
نویسنده
چکیده
V. Structure and Function of Sarcoplasmic Reticulum Proteins . . . . . . . . . . . . . . . . . . . . . . 77 A. Major Protein Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 1. Ca + Mg ATPase. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 2. Calsequestrin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 3. Intrinsic 53,000-Dalton Glycoprotein . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 B. Minor Protein Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 1. Low Molecular Weight Proteins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 a. Proteolipid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 b. Calmodulin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 c. Intrinsic 30,000-Dalton Protein . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 d. Extrinsic 34,000and 38,000-Dalton Proteins . . . . . . . . . . . . . . 88 e. High Affinity Ca Binding Protein . . . . . . . . . . . . . . . . . . . . . . . . 89 f. 20,000and 60,000-Dalton Phosphoproteins . . . . . . . . . . . . . . . 89 2. High Molecular Weight Proteins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 a. Intrinsic 160,000-Dalton Glycoprotein . . . . . . . . . . . . . . . . . . . . . 90 b. 170,000-Dalton Protein . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 c. 300,000to 350,000-Dalton Proteins. . . . . . . . . . . . . . . . . . . . . . . 91
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