Repressor ProteinsMetallochaperonesMetalloidsArsenicIon PumpsLac RepressorsOperator Regions, GeneticX-Ray Absorption SpectroscopyEscherichia coliTranscription FactorsMolecular Sequence DataAntimonyBacterial ProteinsDNA-Binding ProteinsBinding SitesPromoter Regions, GeneticTranscription, GeneticBase SequenceBicyclo CompoundsEscherichia coli ProteinsTrans-ActivatorsOperonTwo-Hybrid System TechniquesProtein BindingGene Expression Regulation, BacterialViral Regulatory and Accessory ProteinsMolecular ChaperonesAmino Acid SequenceMutationGenes, RegulatorGene Expression RegulationPlasmidsCyclic AMP Response Element ModulatorModels, MolecularNuclear ProteinsLac OperonProtein ConformationZinc FingersDNA, BacterialLysogenyHistone DeacetylasesHomeodomain ProteinsCysteineRecombinant Fusion ProteinsCrystallography, X-RayBacteriophage lambdaGene Expression Regulation, DevelopmentalIsopropyl ThiogalactosideKruppel-Like Transcription FactorsDrosophila ProteinsGenes, ReporterHelix-Turn-Helix MotifsBasic Helix-Loop-Helix Transcription FactorsDNACloning, MolecularDNA FootprintingGenes, BacterialRNA, MessengerProtein Structure, TertiaryTranscriptional ActivationElectrophoretic Mobility Shift AssayCell LineSequence Homology, Amino Acidbeta-GalactosidaseRegulatory Sequences, Nucleic AcidViral ProteinsEnzyme RepressionDrosophilaTransfectionChromatin ImmunoprecipitationGene Expression Regulation, FungalSignal TransductionGene SilencingColiphagesLactoseArabidopsis ProteinsDimerizationSaccharomyces cerevisiae ProteinsRegulonConsensus SequenceSequence AlignmentModels, GeneticHeLa CellsDNA PrimersTetracyclinePhenotypeCo-Repressor ProteinsResponse ElementsArabidopsisDown-RegulationMutagenesis, Site-DirectedCell NucleusGene Expression Regulation, PlantRec A RecombinasesSaccharomyces cerevisiaeCorynebacterium diphtheriaeCarrier ProteinsHistone Deacetylase 1Basic-Leucine Zipper Transcription FactorsBacteriophage mu