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. 1977 Oct 7;17(3):117-23.
doi: 10.1007/BF01730831.

Cholesterol in muscle membranes

D R Headon, E J Barrett, N M Joyce, J O'Flaherty

Cholesterol in muscle membranes

D R Headon et al. Mol Cell Biochem. .

Abstract

The composition of skeletal muscle microsomes is reviewed. Evidence for the involvement of cholesterol in the transport of calcium by vesicles derived from the sarcoplasmic reticulum is considered. Results obtained by non aqueous extractions of skeletal muscle microsomes, and by use of the cholesterol analogue 20, 25 diazacholesterol indicate that cholesterol is not involved in calcium transport by vesicles of sarcoplasmic reticulum origin. Use of density perturbation procedures indicating that cholesterol is present in muscle membranes other than those of the sarcoplasmic reticulum involved in calcium transport is discussed. The distribution of membranal cholesterol in muscle is compared to that in other tissues.

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