title: Penicillin resistance in Escherichia coli K12: synergism between penicillinases and a barrier in the outer part of the envelope.
mesh_terms: D000667:Ampicillin / Q000494:pharmacology; D001419:Bacteria / Q000166:cytology; D050260:Carbohydrate Metabolism; D002462:Cell Membrane / Q000187:drug effects; D002876:Chromosomes, Bacterial / Q000378:metabolism; D003470:Culture Media; D004357:Drug Synergism; D004926:Escherichia coli / Q000166:cytology / Q000187:drug effects* / Q000201:enzymology; D005796:Genes; D005838:Genotype; D006358:Hot Temperature; D008070:Lipopolysaccharides / Q000378:metabolism; D008826:Microbial Sensitivity Tests; D009154:Mutation; D010403:Penicillin Resistance; D010405:Penicillinase / Q000096:biosynthesis / Q000378:metabolism*; D010406:Penicillins / Q000494:pharmacology*; D010641:Phenotype; D011135:Polysaccharides, Bacterial / Q000378:metabolism; D012293:Rifampin / Q000494:pharmacology; D013997:Time Factors; D065093:beta-Lactamase Inhibitors
chemical_list: D003470:Culture Media; D008070:Lipopolysaccharides; D010406:Penicillins; D011135:Polysaccharides, Bacterial; D065093:beta-Lactamase Inhibitors; D000667:Ampicillin; D010405:Penicillinase; D012293:Rifampin