Protein Interaction MappingRepressor ProteinsProtein BindingTwo-Hybrid System TechniquesMolecular Sequence DataProtein Structure, TertiaryAmino Acid SequenceBinding SitesProtein Interaction MapsOperator Regions, GeneticTranscription FactorsBase SequenceLac RepressorsModels, MolecularProtein ConformationDNA-Binding ProteinsProtein Interaction Domains and MotifsBacterial ProteinsCell LineTranscription, GeneticEscherichia coliPromoter Regions, GeneticOperonIsopropyl ThiogalactosideProteinsMutationGene Expression Regulation, BacterialViral Regulatory and Accessory ProteinsDatabases, ProteinPlasmidsRecombinant Fusion ProteinsGenes, RegulatorEscherichia coli ProteinsNuclear ProteinsDNASaccharomyces cerevisiaeGene Expression RegulationCloning, MolecularDNA, BacterialSaccharomyces cerevisiae ProteinsZinc FingersModels, BiologicalComputational BiologyViral ProteinsSequence Homology, Amino AcidDimerizationCarrier ProteinsSignal TransductionGenes, BacterialSequence AlignmentLysogenyLac OperonBacteriophage lambdaTrans-ActivatorsAmino Acid MotifsDNA FootprintingTransfectionRNA, MessengerDrosophila ProteinsMultiprotein ComplexesMutagenesis, Site-DirectedHistone DeacetylasesAlgorithmsLactoseHeLa CellsRecombinant ProteinsGenes, ReporterModels, GeneticRegulatory Sequences, Nucleic AcidConsensus SequenceElectrophoretic Mobility Shift AssayCell NucleusFungal ProteinsRNA-Binding ProteinsEnzyme RepressionProteomeKineticsProtein BiosynthesisStructure-Activity RelationshipGene Expression Regulation, FungalProteomicsDeoxyribonuclease IRestriction MappingTetracyclineHomeodomain ProteinsTranscriptional ActivationMacromolecular SubstancesMutagenesisBasic Helix-Loop-Helix Transcription FactorsArabidopsis ProteinsSequence Analysis, ProteinColiphagesCOS CellsNucleic Acid ConformationGene Expression Regulation, DevelopmentalProtein Structure, SecondaryPhenotypeDrosophilaDNA PrimersSoftware