title: Mutations conferring quantitative and qualitative increases in beta-galactosidase activity in Escherichia coli.
mesh_terms: D000906:Antibodies; D003227:Conjugation, Genetic; D004790:Enzyme Induction; D004926:Escherichia coli / Q000201:enzymology; D005690:Galactose; D005696:Galactosidases / Q000032:analysis / Q000378:metabolism*; D006027:Glycosides; D006146:Guanidines / Q000494:pharmacology; D007700:Kinetics; D009154:Mutation / Q000187:drug effects; D009603:Nitroso Compounds / Q000494:pharmacology
chemical_list: D000906:Antibodies; D006027:Glycosides; D006146:Guanidines; D009603:Nitroso Compounds; D005696:Galactosidases; D005690:Galactose