ID 3.4.23.2 DE pepsin B. AN parapepsin I. CA Degradation of gelatin, little activity on hemoglobin. Specificity on B CA chain of insulin more restricted than that of pepsin A. Does not cleave CA 1-Phe-|-Val-2, 4-Gln-|-His-5 or 23-Gly-|-Phe-24. CC -!- Belongs to peptidase family A1. CC -!- Formerly EC 3.4.4.2. DR Q8SQ41, PEPB_CANLF ; Q689Z7, PEPB_MONDO ; Q10735, PEPB_PIG ; //