title: Aminopeptidase N from Escherichia coli: ionizable active-center groups and substrate specificity.
mesh_terms: D000596:Amino Acids / Q000032:analysis / Q000494:pharmacology; D000626:Aminopeptidases / Q000378:metabolism*; D001665:Binding Sites; D002413:Cations, Divalent; D004926:Escherichia coli / Q000201:enzymology*; D007700:Kinetics; D011485:Protein Binding; D013379:Substrate Specificity
chemical_list: D000596:Amino Acids; D002413:Cations, Divalent; D000626:Aminopeptidases