ID 3.4.23.5 DE cathepsin D. CA Specificity similar to, but narrower than, that of pepsin A. Does not CA cleave the 4-Gln-|-His-5 bond in B chain of insulin. CC -!- Occurs intracellularly, in lysosomes. CC -!- Belongs to peptidase family A1. CC -!- Formerly EC 3.4.4.23. DR P80209, CATD_BOVIN ; Q4LAL9, CATD_CANLF ; Q05744, CATD_CHICK ; DR O93428, CATD_CHIHA ; Q9DEX3, CATD_CLUHA ; O76856, CATD_DICDI ; DR P07339, CATD_HUMAN ; P18242, CATD_MOUSE ; P00795, CATD_PIG ; DR P24268, CATD_RAT ; Q9MZS8, CATD_SHEEP ; //