the activators of protein kinase c , 12-0-tetradecanoylphorbol-13-acetate and 1,2-diolein , increased phosphorylation of the protein bands of similar molecular weight to those increased by phosphatidylserine in the presence of ca2+ , whereas the biologically inactive phorbol ester , 4 alpha-phorbol-12,13 didecanoate ( 4 alpha pdd ) failed to change the pattern of protein phosphorylation .
C0039654
tetradecanoylphorbol
C0031586
phorbol ester