Lac OperonOperonLactoseLac RepressorsGalactosidasesEscherichia coliPoint MutationMutationMutation, MissenseIsopropyl Thiogalactosidebeta-GalactosidaseGene Expression Regulation, BacterialEnzyme RepressionGenes, BacterialBase SequenceBacterial ProteinsMolecular Sequence DataNitrophenylgalactosidesMolecular BiologyEscherichia coli ProteinsFrameshift MutationDNA, BacterialTranscription, GeneticGenes, RegulatorrRNA OperonRepressor ProteinsGerm-Line MutationOperator Regions, GeneticCyclic AMP Receptor ProteinThiogalactosidesCloning, MolecularPromoter Regions, GeneticAmino Acid SequencePlasmidsRNA, BacterialChromosomes, BacterialGenetics, MicrobialGenesChromosome MappingPedigreeSalmonella typhimuriumBacteriophage muMembrane Transport ProteinsGalactoseTransduction, GeneticSequence Analysis, DNADNA Transposable ElementsModels, GeneticMutation RateColiphagesEnzyme InductionGenetic Complementation TestPhenotypePolymerase Chain ReactionGenetic CodeDNA Mutational AnalysisExonsAmino Acid SubstitutionMutagenesisDNA, RecombinantGlycosidesHeterozygoteRNA, MessengerNucleic Acid ConformationMutagenesis, Site-DirectedAllelesGenotypeRestriction MappingTranscription FactorsRecombination, GeneticDNA-Directed RNA PolymerasesMutagenesis, InsertionalSequence Homology, Amino AcidDNA-Binding ProteinsBacillus subtilisPolymorphism, Single-Stranded ConformationalKineticsGene DeletionSequence DeletionSpecies SpecificityBinding SitesGene Expression RegulationSuppression, GeneticDNA PrimersCodon, NonsenseHomozygoteCodonSequence AlignmentStochastic ProcessesCulture MediaGlucoseProtein BindingGenes, RecessiveProtein Structure, TertiaryModels, MolecularGenes, DominantMembrane ProteinsGenetic TestingCyclic AMPModels, Biological