when the phorbol ester 12-o-tetradecanoyl-phorbol-13-acetate ( tpa ) or serum is added to cultures of u-1690 cells the mr 66,000 polypeptide is rapidly enriched while the mr 60,000 form is decreased in the l-myc immunoprecipitates .
C0031586
phorbol ester
C0039654
12-o-tetradecanoyl-phorbol-13-acetate