ID 3.4.23.19 DE aspergillopepsin II. AN Aspergillus niger var. macrosporus aspartic proteinase. AN proctase A. AN proteinase A. CA Preferential cleavage in B chain of insulin: 3-Asn-|-Gln-4, 13-Gly-|-Ala- CA 14, and 26-Tyr-|-Thr-27. CC -!- Isolated from Aspergillus niger var. macrosporus, distinct from CC aspergillopepsin I in specificity and insensitivity to pepstatin. CC -!- Belongs to peptidase family A4. CC -!- Formerly EC 3.4.23.6. DR P24665, PRTA_ASPNG ; //