ca2+/calmodulin-dependent phosphorylation of a 55-kda peptide could not be demonstrated in sarcolemma , regardless if sarcolemmal membranes were incubated together with sarcoplasmic reticulum or if the phosphorylation was carried out in the presence of purified cardiac myosin light chain kinase or phosphorylase kinase .
C0031715
phosphorylation
C0027120
myosin light chain kinase