Regulatory Sequences, Nucleic AcidRNA, BacterialUridineTritiumCarbon IsotopesPhosphorus IsotopesBase SequenceUracilRNACentrifugation, Density GradientGenetics, MicrobialRNA, TransferRNA, MessengerUracil NucleotidesRNA, RibosomalRibonucleasesTranscription, GeneticEscherichia coliMolecular Sequence DataPromoter Regions, GeneticGenes, RegulatorAmino Acyl-tRNA SynthetasesDactinomycinGene Expression RegulationChloramphenicolRNA NucleotidyltransferasesRibosomesMutationCell-Free SystemRifampinRNA, ViralEnhancer Elements, GeneticLeucineDNAProtein BiosynthesisGenesChromatographyNucleic Acid HybridizationTranscription FactorsGenetic CodeElectrophoresis, DiscOrotic AcidSucroseCytosine NucleotidesNucleic Acid DenaturationColiphagesDNA-Directed RNA PolymerasesDNA, BacterialBacterial ProteinsBinding SitesCulture TechniquesBlotting, NorthernPolyribosomesSporesGalactosidasesRegulatory Elements, TranscriptionalBacillus subtilisCell LineCloning, MolecularPolynucleotidesTemperatureCulture MediaIn Situ HybridizationDNA-Binding ProteinsMethionineEnzyme RepressionAcrylatesGenes, ReporterAmino Acid SequencePuromycinCell NucleusPhenylalanineAdenineAmino AcidsVirus CultivationNucleotidesCarbon RadioisotopesGene Expression Regulation, DevelopmentalIsoleucineReverse Transcriptase Polymerase Chain ReactionTime FactorsValine-tRNA LigaseChromatography, DEAE-CelluloseMolecular WeightChemical PrecipitationLiverPlasmidsHot TemperatureConserved SequenceNitrosoguanidinesChromatography, PaperElectrophoresis, Polyacrylamide GelPoly AElectrophoresisL Cells (Cell Line)OperonMice, TransgenicCells, CulturedCentrifugation, ZonalSulfur Isotopes