The -lactamases of gram-negative bacteria and their transfer by R-factors.

Amidohydrolases/antagonists & inhibitors,biosynthesis,classification,metabolism Ampicillin/metabolism Carbenicillin/metabolism Cephaloridine/metabolism Cephalosporins/metabolism,pharmacology Chloromercuribenzoates/pharmacology Cloxacillin/pharmacology Conjugation, Genetic Electrophoresis Enzyme Induction Escherichia coli/drug effects,enzymology Genes Genetics, Microbial Hydrolysis Penicillin G/metabolism Penicillin Resistance Penicillinase/biosynthesis,metabolism Penicillins/pharmacology Pseudomonas aeruginosa/drug effects,enzymology beta-Lactamase Inhibitors

Cephalosporins Chloromercuribenzoates Penicillins beta-Lactamase Inhibitors Ampicillin Amidohydrolases Penicillinase Carbenicillin Cephaloridine Cloxacillin Penicillin G