Repressor ProteinsAmino AcidsOperator Regions, GeneticGTP PyrophosphokinaseSequence Homology, Amino AcidAmino Acid SequenceLac RepressorsBase SequenceMolecular Sequence DataEscherichia coliBacterial ProteinsCloning, MolecularTranscription FactorsDNA-Binding ProteinsBinding SitesSequence AlignmentTranscription, GeneticProtein BindingOperonMutationPromoter Regions, GeneticAmino Acid SubstitutionPosition-Specific Scoring MatricesIsopropyl ThiogalactosidePlasmidsGene Expression Regulation, BacterialDNAViral Regulatory and Accessory ProteinsSequence Analysis, DNAGenes, BacterialGenes, RegulatorRecombinant Fusion ProteinsDNA, BacterialMutagenesis, Site-DirectedEscherichia coli ProteinsAmino Acid MotifsSequence Analysis, ProteinAmino Acids, EssentialProtein ConformationProtein Structure, TertiaryRestriction MappingSequence Homology, Nucleic AcidAmino Acid Transport SystemsRecombinant ProteinsModels, MolecularKineticsRNA, MessengerCell LineSoftwareDNA, ComplementaryStructure-Activity RelationshipGene Expression RegulationViral ProteinsCarrier ProteinsZinc FingersNuclear ProteinsProtein BiosynthesisBacteriophage lambdaLac OperonLysogenyTransfectionMolecular WeightSaccharomyces cerevisiaeDNA PrimersElectrophoresis, Polyacrylamide GelConsensus SequenceGenesPeptide FragmentsAmino Acids, AromaticLactoseTrans-ActivatorsProtein Structure, SecondaryTryptophanMutagenesisSequence DeletionProteinsLeucineAmino Acids, Branched-ChainDimerizationDNA FootprintingEnzyme RepressionAmino Acids, SulfurTwo-Hybrid System TechniquesRegulatory Sequences, Nucleic AcidHistone DeacetylasesGene ExpressionOpen Reading FramesMacromolecular SubstancesSubstrate SpecificityGenetic Complementation TestHeLa CellsInternetPeptidesElectrophoretic Mobility Shift AssayTetracyclineSaccharomyces cerevisiae ProteinsConserved Sequencebeta-GalactosidaseGenes, ReporterGene Expression Regulation, Fungal