title: Mutational alteration of the maximal level of Lac operon expression.
mesh_terms: D002874:Chromosome Mapping; D002876:Chromosomes, Bacterial; D004790:Enzyme Induction; D004926:Escherichia coli / Q000201:enzymology; D005696:Galactosidases / Q000096:biosynthesis; D005796:Genes / Q000502:physiology*; D005809:Genes, Regulator / Q000502:physiology*; D005815:Genetic Code; D026901:Membrane Transport Proteins / Q000096:biosynthesis; D009154:Mutation; D009713:Nucleotidyltransferases / Q000378:metabolism; D011995:Recombination, Genetic; D014166:Transferases / Q000096:biosynthesis
chemical_list: D026901:Membrane Transport Proteins; D014166:Transferases; D009713:Nucleotidyltransferases; D005696:Galactosidases