Lac OperonOperonLactoseTranscription, GeneticLac RepressorsTranscription FactorsGalactosidasesEscherichia coliGene Expression Regulation, BacterialIsopropyl Thiogalactosidebeta-GalactosidaseBase SequenceMolecular Sequence DataGenes, BacterialPromoter Regions, GeneticBacterial ProteinsEnzyme RepressionMutationRepressor ProteinsNitrophenylgalactosidesGene Expression RegulationGenes, RegulatorRNA, MessengerEscherichia coli ProteinsMolecular BiologyDNA, BacterialCloning, MolecularPlasmidsAmino Acid SequencerRNA OperonSp1 Transcription FactorCyclic AMP Receptor ProteinRNA, BacterialDNA-Binding ProteinsDNA-Directed RNA PolymerasesBinding SitesGenesTrans-ActivatorsTranscriptional ActivationOperator Regions, GeneticThiogalactosidesProtein BindingTranscription Initiation SiteChromosomes, BacterialCell LineGenetics, MicrobialModels, GeneticNuclear ProteinsDNAChromosome MappingSalmonella typhimuriumBacteriophage muEnzyme InductionGalactoseNucleic Acid ConformationRestriction MappingGenes, ReporterRNA Polymerase IIMembrane Transport ProteinsDNA, RecombinantDNA Transposable ElementsTransduction, GeneticSignal TransductionTranscription Factor AP-1Regulatory Sequences, Nucleic AcidColiphagesCell NucleusHeLa CellsSTAT3 Transcription FactorGenetic CodeTransfectionBasic Helix-Loop-Helix Transcription FactorsRecombinant Fusion ProteinsTranscription Factors, TFIIPhenotypeTranscription Factor TFIIDBacillus subtilisReverse Transcriptase Polymerase Chain ReactionGlycosidesSequence Homology, Amino AcidGene Expression Regulation, DevelopmentalModels, BiologicalKineticsReverse TranscriptionSequence Analysis, DNASequence Homology, Nucleic AcidHomeodomain ProteinsElectrophoretic Mobility Shift AssayCells, CulturedGene ExpressionTerminator Regions, GeneticBasic-Leucine Zipper Transcription FactorsChromatin ImmunoprecipitationSpecies SpecificityGene Expression ProfilingEnhancer Elements, GeneticForkhead Transcription FactorsGene Expression Regulation, FungalGenetic Complementation TestTranscription Factor TFIIB