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Subunit composition of native myosin isoenzymes of some striated mammalian muscles
G Marechal1, D Biral, G Beckers-Bleukx
1Unité de Physiologie générale des muscles, Département de Physiologie, Bruxelles, Belgium.
Biomedica Biochimica Acta
|January 1, 1989
Abstract:
Six "native" isomyosins of characteristic electrophoretic mobility are present in various proportions according to the muscle type (fast, slow or mixed). SM2 and SM1 contain MHC1; IM contains MHC2A; FM1, FM2 and FM3 contain MHC2A and MHC2B. SM2, SM1 and IM contain MLC1s; SM1, IM, FM2 and FM3 contain MLC1f; FM2 and FM1 contain MLC3f. The six isomyosins appear to separate on the base of their myosin light chain content.