preincubation of the cells with high concentrations of active phorbol esters abolished specific [ 3h ] phorbol 12,13-dibutyrate binding , protein kinase c activity , and immunoreactivity and also prevented stimulated phosphorylation of the mr 80,000 protein by pma , diacylglycerols , pdgf , or fgf , supporting the contention that this effect was mediated through protein kinase c .
C0031586
phorbol esters
C0039654
pma