Zinc FingersRepressor ProteinsFingersMolecular Sequence DataOperator Regions, GeneticTranscription FactorsDNA-Binding ProteinsBase SequenceLac RepressorsAmino Acid SequenceBinding SitesPromoter Regions, GeneticProtein BindingTranscription, GeneticBacterial ProteinsEscherichia coliOperonMutationDNAIsopropyl ThiogalactosideKruppel-Like Transcription FactorsCloning, MolecularSequence Homology, Amino AcidPlasmidsZinc CompoundsNuclear ProteinsZinc SulfateGene Expression Regulation, BacterialRecombinant Fusion ProteinsViral Regulatory and Accessory ProteinsGenes, RegulatorProtein Structure, TertiaryGene Expression RegulationSequence AlignmentConsensus SequenceZinc OxideRNA, MessengerTrans-ActivatorsCell LineEscherichia coli ProteinsTwo-Hybrid System TechniquesCarrier ProteinsDNA, BacterialZinc IsotopesTransfectionDrosophila ProteinsGene Expression Regulation, DevelopmentalMutagenesis, Site-DirectedElectrophoretic Mobility Shift AssayLac OperonGenes, ReporterRestriction MappingTranscriptional ActivationModels, MolecularDNA FootprintingHistone DeacetylasesCell NucleusHomeodomain ProteinsRecombinant ProteinsProtein ConformationLysogenyTranscription Factor TFIIIAGenes, BacterialViral ProteinsBacteriophage lambdaRegulatory Sequences, Nucleic AcidDNA, ComplementaryHeLa CellsDimerizationZinc AcetateDNA PrimersRNA-Binding ProteinsAmino Acid MotifsDrosophilaRING Finger DomainsSaccharomyces cerevisiae ProteinsMetalloproteinsZincLactoseSaccharomyces cerevisiaeDeoxyribonuclease ISequence Homology, Nucleic AcidGene Expression Regulation, FungalFungal ProteinsMutagenesisStructure-Activity RelationshipCOS CellsSequence DeletionEnzyme RepressionGene ExpressionProtein BiosynthesisPhenotypebeta-GalactosidaseKineticsTetracyclineConserved SequenceSignal TransductionArabidopsis ProteinsBasic Helix-Loop-Helix Transcription FactorsNucleic Acid Conformation