the effect of the phorbol ester 12-o-tetradecanoylphorbol-13-acetate ( tpa ) on the stimulation-evoked neurotransmitter release has been investigated by measuring the quantal content ( m ) of end-plate potentials at frog neuromuscular junctions ( rana temporaria , m. sartorius ) .
C0031586
phorbol ester
C0039654
12-o-tetradecanoylphorbol-13-acetate