Regulatory Sequences, Nucleic AcidRNA, BacterialUridineTritiumCarbon IsotopesPhosphorus IsotopesUracilBase SequenceCentrifugation, Density GradientRNAGenetics, MicrobialRNA, TransferUracil NucleotidesRNA, MessengerRNA, RibosomalRibonucleasesEscherichia coliMolecular Sequence DataPromoter Regions, GeneticAmino Acyl-tRNA SynthetasesGenes, RegulatorTranscription, GeneticRNA InterferenceChloramphenicolDactinomycinRNA NucleotidyltransferasesMutationRifampinCell-Free SystemEnhancer Elements, GeneticRibosomesGene Expression RegulationRNA, ViralLeucineChromatographyElectrophoresis, DiscOrotic AcidGenetic CodeGenesDNACytosine NucleotidesTranscription FactorsSucroseColiphagesNucleic Acid DenaturationDNA-Directed RNA PolymerasesDNA, BacterialBacterial ProteinsCulture TechniquesNucleic Acid HybridizationBinding SitesSporesBacillus subtilisGalactosidasesProtein BiosynthesisRegulatory Elements, TranscriptionalPolynucleotidesTemperatureCulture MediaEnzyme RepressionAcrylatesCell LineMethionineGenes, ReporterPhenylalanineVirus CultivationDNA-Binding ProteinsNucleotidesPuromycinCarbon RadioisotopesAdenineAmino AcidsIsoleucinePolyribosomesGene Expression Regulation, DevelopmentalValine-tRNA LigaseRNA, Small InterferingChromatography, DEAE-CelluloseChemical PrecipitationCell NucleusConserved SequenceNitrosoguanidinesChromatography, PaperCloning, MolecularHot TemperatureElectrophoresisTransgenesPlasmidsCentrifugation, ZonalMolecular WeightSulfur IsotopesL Cells (Cell Line)Electrophoresis, Polyacrylamide GelGene ExpressionHybridization, GeneticOperonTime FactorsIn Situ HybridizationMice, TransgenicBlotting, Northern