Repressor ProteinsOperator Regions, GeneticLac RepressorsMolecular Sequence DataTranscription FactorsDNA-Binding ProteinsBase SequenceBacterial ProteinsOperonIsopropyl ThiogalactosideEscherichia coliTranscription, GeneticPromoter Regions, GeneticAmino Acid SequenceProtein BindingBinding SitesGene Expression Regulation, BacterialViral Regulatory and Accessory ProteinsGenes, RegulatorPlasmidsMutationEscherichia coli ProteinsDNA, BacterialDNALysogenyGenes, BacterialLac OperonZinc FingersCloning, MolecularBacteriophage lambdaGene Expression RegulationRecombinant Fusion ProteinsNuclear ProteinsLactoseDNA FootprintingHistone DeacetylasesEnzyme RepressionViral ProteinsTrans-ActivatorsRegulatory Sequences, Nucleic AcidTetracyclineRNA, MessengerElectrophoretic Mobility Shift AssayRestriction MappingColiphagesCarbon DioxideConsensus SequenceDeoxyribonuclease ITwo-Hybrid System TechniquesProtein Structure, TertiaryGenes, ReporterCell LineCarrier ProteinsDimerizationProtein BiosynthesisProtein ConformationSequence Homology, Amino AcidDrosophila ProteinsMutagenesis, Site-Directedbeta-GalactosidaseGene Expression Regulation, FungalTransfectionSequence AlignmentBasic Helix-Loop-Helix Transcription FactorsHomeodomain ProteinsModels, MolecularKineticsGene Expression Regulation, DevelopmentalNucleic Acid ConformationRecombinant ProteinsCell NucleusHeLa CellsModels, GeneticSaccharomyces cerevisiaeTranscriptional ActivationSaccharomyces cerevisiae ProteinsSequence Homology, Nucleic AcidAlcohol OxidoreductasesRNA-Binding ProteinsGene SilencingDrosophilaTryptophanArabidopsis ProteinsModels, BiologicalBacillus subtilisGenetic Complementation TestDNA Transposable ElementsSignal TransductionPhenotypeInsect ProteinsChloramphenicol O-AcetyltransferaseMutagenesisGenesDNA, ViralStructure-Activity RelationshipCyclic AMP Response Element ModulatorAllosteric RegulationSequence DeletionGene ExpressionDNA Primers