Repressor ProteinsSequence Analysis, ProteinMolecular Sequence DataAmino Acid SequenceOperator Regions, GeneticBase SequenceLac RepressorsSequence AlignmentBacterial ProteinsTranscription FactorsDNA-Binding ProteinsEscherichia coliProteinsCloning, MolecularSequence Homology, Amino AcidTranscription, GeneticOperonBinding SitesPromoter Regions, GeneticDatabases, ProteinIsopropyl ThiogalactosideProtein BindingGene Expression Regulation, BacterialDNAMutationPlasmidsSoftwareViral Regulatory and Accessory ProteinsGenes, RegulatorGenes, BacterialDNA, BacterialSequence Homology, Nucleic AcidAlgorithmsEscherichia coli ProteinsProtein Structure, TertiaryComputational BiologyProtein ConformationRestriction MappingPhylogenyModels, MolecularRecombinant Fusion ProteinsRNA, MessengerSequence Analysis, DNAGene Expression RegulationInternetEvolution, MolecularZinc FingersViral ProteinsNuclear ProteinsBacteriophage lambdaConsensus SequenceLysogenyConserved SequenceLac OperonDNA, ComplementaryGenesAmino Acid MotifsProtein BiosynthesisModels, GeneticUser-Computer InterfaceProtein Structure, SecondaryRecombinant ProteinsLactoseSaccharomyces cerevisiaeRegulatory Sequences, Nucleic AcidCarrier ProteinsDatabases, FactualDNA FootprintingOpen Reading FramesCell LineTrans-ActivatorsSequence AnalysisHistone DeacetylasesEnzyme RepressionStructure-Activity RelationshipMutagenesis, Site-DirectedDrosophila ProteinsFungal ProteinsTetracyclineAmino AcidsElectrophoretic Mobility Shift AssayTransfectionTwo-Hybrid System TechniquesDimerizationGenes, FungalGenetic Complementation TestColiphagesGene Expression Regulation, FungalGenes, ReporterGene Expression Regulation, DevelopmentalInsect ProteinsDeoxyribonuclease ISaccharomyces cerevisiae ProteinsDNA Primersbeta-GalactosidaseGene ExpressionKineticsHomeodomain ProteinsInformation Storage and RetrievalNucleic Acid Conformation