A mutant Ebg enzyme that converts lactose into an inducer of the lac operon.
Lactose is not itself an inducer of the lac operon, nor is it converted to an inducer by ebg+ beta-galactosidase of Escherichia coli. We report here the isolation of a mutant Ebg beta-galactosidase which is capable of converting lactose into an inducer of the lac operon.
D004926:Escherichia coli / Q000235:genetics* / Q000378:metabolism; D005696:Galactosidases / Q000378:metabolism*; D007763:Lac Operon; D007785:Lactose / Q000378:metabolism*; D026901:Membrane Transport Proteins / Q000378:metabolism; D008756:Methylgalactosides / Q000378:metabolism; D009154:Mutation; D012097:Repressor Proteins / Q000502:physiology; D001616:beta-Galactosidase / Q000235:genetics / Q000378:metabolism*
D026901:Membrane Transport Proteins; D008756:Methylgalactosides; D012097:Repressor Proteins; D005696:Galactosidases; D001616:beta-Galactosidase; D007785:Lactose