the phorbol ester 4 beta-phorbol-12-myristate-13-acetate stimulated steroidogenesis and the phosphorylation of a 17 kd and a 33 kd protein , which was also stimulated by lh , whereas the inactive phorbol ester 4 beta-phorbol-12,13-diacetate did not have any effects .
C0039654
phorbol
C0031586
phorbol ester