Operator Regions, GeneticBase SequenceMolecular Sequence DataOperonRepressor ProteinsPromoter Regions, GeneticBinding SitesEscherichia coliBacterial ProteinsGenes, RegulatorGene Expression Regulation, BacterialProtein BindingDNA, BacterialGenes, BacterialMutationPhysician AssistantsTranscription FactorsAmino Acid SequenceDNATranscription, GeneticGene Expression RegulationLac RepressorsLac OperonViral Regulatory and Accessory ProteinsPlasmidsModels, MolecularComputer TerminalsProtein Structure, TertiaryRadiation ProtectionROC CurveNucleic Acid ConformationIsopropyl ThiogalactosideDNA FootprintingFluoroscopyEscherichia coli ProteinsKineticsRadiation MonitoringProtein ConformationOccupational ExposureRecombinant Fusion ProteinsReproducibility of ResultsRadiography, Interventional