ID 3.4.24.63 DE Meprin B. CA Hydrolysis of proteins, including azocasein, and peptides. Hydrolysis of CA 5-His-|-Leu-6, 6-Leu-|-Cys-7, 14-Ala-|-Leu-15 and 19-Cys-|-Gly-20 bonds CA in insulin B chain. CF Zn(2+). CC -!- Inhibited by EDTA and 1,10-phenanthroline, but not by phosphoramidon, CC captopril or thiorphan. CC -!- Belongs to peptidase family M12A. PR PROSITE; PDOC00129; DR Q16820, MEP1B_HUMAN; Q61847, MEP1B_MOUSE; P28826, MEP1B_RAT ; //