Repressor ProteinsPromoter Regions, GeneticBase SequenceOperator Regions, GeneticLac RepressorsTranscription FactorsMolecular Sequence DataDNA-Binding ProteinsBacterial ProteinsTranscription, GeneticOperonEscherichia coliIsopropyl ThiogalactosideProtein BindingAmino Acid SequenceGene Expression Regulation, BacterialViral Regulatory and Accessory ProteinsBinding SitesGenes, RegulatorMutationPlasmidsDNA, BacterialEscherichia coli ProteinsGene Expression RegulationLac OperonZinc FingersLysogenyBacteriophage lambdaNuclear ProteinsDNARecombinant Fusion ProteinsGenes, BacterialCloning, MolecularHistone DeacetylasesDNA FootprintingTrans-ActivatorsLactoseViral ProteinsEnzyme RepressionRegulatory Sequences, Nucleic AcidRNA, MessengerElectrophoretic Mobility Shift AssayGenes, ReporterHomeodomain ProteinsDrosophila ProteinsProtein Structure, TertiaryTetracyclineColiphagesCell LineConsensus SequenceGene Expression Regulation, DevelopmentalBasic Helix-Loop-Helix Transcription FactorsSequence Homology, Amino AcidTwo-Hybrid System Techniquesbeta-GalactosidaseCyclic AMP Response Element ModulatorRestriction MappingDimerizationDeoxyribonuclease ITransfectionGene Expression Regulation, FungalCarrier ProteinsProtein BiosynthesisMutagenesis, Site-DirectedProtein ConformationSequence AlignmentTranscriptional ActivationDrosophilaCell NucleusNucleic Acid ConformationHeLa CellsGene SilencingModels, GeneticModels, MolecularSaccharomyces cerevisiae ProteinsSaccharomyces cerevisiaeRecombinant ProteinsArabidopsis ProteinsSignal TransductionKineticsRNA-Binding ProteinsKruppel-Like Transcription FactorsPhenotypeTryptophanHelix-Turn-Helix MotifsSequence Homology, Nucleic AcidBacillus subtilisInsect ProteinsModels, BiologicalMutagenesisDNA PrimersAlcohol OxidoreductasesArabidopsisSequence DeletionDNA Transposable ElementsFungal ProteinsDNA, ViralGenetic Complementation TestGene Expression Regulation, ViralGenes