treatment of platelets with prostaglandin e ( 1 ) did not inhibit the increased phosphorylation of polypeptides with apparent mol.wts . of 47000 and 20000 ( p47 and p20 ) caused by ionophore a23187 , which may therefore short-circuit cyclic amp-dependent mechanisms that decrease the ca ( 2+ ) concentration in the platelet cytosol .
C0031715
phosphorylation
C1705714
wts