the relative abilities of insulin and the phorbol ester tumor promoter 12-o-tetradecanoyl phorbol 13-acetate ( tpa ) to lead to the phosphorylation of ribosomal protein s6 in vivo were compared in a reuber h35 hepatoma cell line shown previously to be highly responsive to these agents .
C0031586
phorbol ester
C0039654
12-o-tetradecanoyl phorbol 13-acetate