in differentiated bc3h1 nonfusing muscle cells ( smooth muscle alpha-isoactin ) , in human rhabdomyosarcoma cells ( cardiac alpha-isoactin ) , and in chick skeletal muscle cells ( cardiac alpha-isoactin ) , different fractions were found selectively enriched in either the nonmuscle or the muscle-specific actin isoforms compared with their relative abundance in whole cell extracts .
C0035412
rhabdomyosarcoma
C1704336
skeletal muscle cells