these findings show that phosphorylation of lc20 by protein kinase c in glycerinated muscles to levels at least 40 times higher than those present during contraction of intact , phorbol ester-stimulated muscles does not activate contraction nor does it significantly modify the contraction of smooth muscle which occurs in response to the ca2+/calmodulin-dependent phosphorylation of ser19 by myosin light chain kinase .
C0031715
phosphorylation
C0027120
myosin light chain kinase