Results from comparison of the inhibitory effect of the two proteinase inhibitors, PCMB and PMSF, on this conversion Showed that serine may be included in the active centre of the peptidase associated with toad brain synaptic membranes.

• 还用二种不同类型的蛋白酶抑制剂,即对氯汞苯甲酸(PCMB)和苯甲基磺酰氟(PMSF),对该酶促转化过程的抑制作用进行了比较,结果表明该水解酶的活性中心可能含有丝氨酸。