title: Beta-lactamase and penicillinacylase coexistence in Escherichia coli.
mesh_terms: D000581:Amidohydrolases / Q000378:metabolism*; D004926:Escherichia coli / Q000201:enzymology*; D010400:Penicillin G / Q000378:metabolism; D010405:Penicillinase / Q000145:classification / Q000378:metabolism*; D010406:Penicillins / Q000378:metabolism
chemical_list: D010406:Penicillins; D000581:Amidohydrolases; D010405:Penicillinase; D010400:Penicillin G