the function of the a element ( nucleotides 5107 to 5130 ) of the polyomavirus enhancer is augumented in nih 3t3 cells by a tumor-promoting phorbol ester , 12-o-tetradecanoylphorbol-13-acetate ( tpa ) .
C0031586
phorbol ester
C0039654
12-o-tetradecanoylphorbol-13-acetate