we now report that tpa-induced activation of platelets is associated with the phosphorylation of the 20,000-mw light chain of myosin , that it appears to be mediated mainly through protein kinase c and that the site phosphorylated in the myosin light chain is distinct from that phosphorylated by myosin light chain kinase .
C0031715
phosphorylation
C0027120
myosin light chain kinase