coated vesicles prepared from bovine brain contained cyclic nucleotides- and ca2+-calmodulin-independent protein kinases which in the presence of mg2+ catalyzed the phosphorylation of an endogenous 48,000 mr protein of coated vesicles ( c-48 ) , phosvitin and troponin t .
C0033640
protein kinases
C1158886
phosphorylation