The inactive precursor to pepsin, formed in the cells of the mucous membrane of the stomach and converted to pepsin by hydrochloric acid during digestion.
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- 胃蛋白酶原胃蛋白酶的一种不活跃原,在胃粘膜细胞中形成并在消化的过程中通过盐酸转化为胃蛋白酶