increasing levels of phosphorylation of hmm by protein kinase c causes a progressive inhibition of the subsequent rate of phosphorylation of serine 19 by myosin light chain kinase and causes a progressive inhibition of actin-activated atpase activity of hmm , prephosphorylated by myosin light chain kinase .
C0031715
phosphorylation
C0027120
myosin light chain kinase