Repressor ProteinsOperator Regions, GeneticMolecular Sequence DataBase SequenceLac RepressorsTranscription FactorsBacterial ProteinsDNA-Binding ProteinsTranscription, GeneticAmino Acid SequenceEscherichia coliPromoter Regions, GeneticOperonPlasmidsIsopropyl ThiogalactosideGene Expression Regulation, BacterialBinding SitesCloning, MolecularGenes, RegulatorProtein BindingMutationDNA, BacterialGenes, BacterialViral Regulatory and Accessory ProteinsGene DosageDNARestriction MappingEscherichia coli ProteinsGene Expression RegulationDNA Transposable ElementsBacteriophage lambdaRecombinant Fusion ProteinsRNA, MessengerNuclear ProteinsSequence Homology, Amino AcidRegulatory Sequences, Nucleic AcidSequence Homology, Nucleic AcidSequence AlignmentLysogenyLac OperonDNA Copy Number VariationsZinc FingersGenes, FungalCell LineGenesViral ProteinsSequence Analysis, DNADNA, ViralSaccharomyces cerevisiaeTrans-ActivatorsRepetitive Sequences, Nucleic AcidProtein Structure, TertiaryTransfectionConsensus SequenceLactoseDNA FootprintingGenes, ReporterProtein BiosynthesisHistone DeacetylasesGene Expression Regulation, Fungalbeta-GalactosidaseCarrier ProteinsEnzyme RepressionChromosome MappingModels, GeneticPhenotypeNucleic Acid ConformationGenetic Complementation TestBlotting, SouthernModels, MolecularDNA PrimersProtein ConformationNucleic Acid HybridizationPolymerase Chain ReactionHeLa CellsDimerizationTetracyclineDrosophila ProteinsSaccharomyces cerevisiae ProteinsRecombinant ProteinsCell NucleusElectrophoretic Mobility Shift AssayEnhancer Elements, GeneticMutagenesis, Site-DirectedMultigene FamilyFungal ProteinsColiphagesBacillus subtilisGene ExpressionDeoxyribonuclease IRNA-Binding ProteinsGenes, ViralKineticsTranscriptional ActivationSequence DeletionGene Expression Regulation, DevelopmentalMutagenesisTwo-Hybrid System TechniquesGenetic VectorsChloramphenicol O-Acetyltransferase