catalytic activity:Release of any N-terminal amino acid, including proline, that is linked to proline, even from a dipeptide or tripeptide.,cofactor:Manganese.,enzyme regulation:Inhibited by apstatin and the metal ion chelators EDTA and 1,10-phenanthroline. Partially inhibited by dithiothreitol. Not inhibited by enalaprilat or amastatin.,similarity:Belongs to the peptidase M24B family.,subunit:Homodimer.,tissue specificity:Expressed in all tissues tested, including pancreas, heart, muscle, kidney, liver, lung and brain. Highest levels in pancreas.,
Cytoplasm .
Expressed in all tissues tested, including pancreas, heart, muscle, kidney, liver, lung and brain. Highest levels in pancreas.