one of the targets of the phosphoinositide signalling system is the enzyme protein kinase c ( pkc ) , which can be activated experimentally by tumour promoting phorbol esters , including 12-o-tetradecanoylphorbol-13-acetate ( tpa ) .
C0031586
phorbol esters
C0039654
12-o-tetradecanoylphorbol-13-acetate