title: The two sites of penicillin action in Escherichia coli.
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001381:Azepines / Q000494:pharmacology; D002506:Cephalexin / Q000494:pharmacology*; D004338:Drug Combinations; D004926:Escherichia coli / Q000187:drug effects* / Q000201:enzymology / Q000254:growth & development; D007769:Lactams; D008854:Microscopy, Electron; D010397:Penicillanic Acid / Q000494:pharmacology*; D010403:Penicillin Resistance; D010406:Penicillins / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D001381:Azepines; D004338:Drug Combinations; D007769:Lactams; D010406:Penicillins; D010397:Penicillanic Acid; D002506:Cephalexin