addition of 0.01 microgram/ml of phorbol ester , 12-o-tetradecanoyl-phorbol-13-acetate ( tpa ) to growth medium in these experiments markedly enhanced the recovery of the tubr mutants , but it had no effect on the recovery of dipr mutants , which suggests that tpa was enhancing recovery of ak- mutants by inhibiting metabolic cooperation between ak- and ak+ cells .
C0031586
phorbol ester
C0039654
12-o-tetradecanoyl-phorbol-13-acetate