Regulatory Sequences, Nucleic AcidRNA, BacterialUridineTritiumBase SequenceCarbon IsotopesPhosphorus IsotopesMolecular Sequence DataUracilCentrifugation, Density GradientRNAGenetics, MicrobialEscherichia coliRNA, MessengerRNA, TransferUracil NucleotidesRNA, RibosomalRibonucleasesTranscription, GeneticAmino Acyl-tRNA SynthetasesPromoter Regions, GeneticGenes, RegulatorMolecular WeightChloramphenicolDactinomycinRNA NucleotidyltransferasesAmino Acid SequenceMutationCell-Free SystemRibosomesRifampinRNA, ViralGenesElectrophoresis, Polyacrylamide GelLeucineChromatographyDNAEnhancer Elements, GeneticGene Expression RegulationPeptide BiosynthesisProtein BiosynthesisBacterial ProteinsCloning, MolecularElectrophoresis, DiscGenetic CodeBinding SitesPeptidesDNA, BacterialNucleic Acid HybridizationOrotic AcidDNA-Directed RNA PolymerasesSucroseTranscription FactorsColiphagesPancreatic PolypeptideCytosine NucleotidesAmino AcidsNucleic Acid DenaturationCulture TechniquesTemperatureCell LineBacillus subtilisGalactosidasesMethionineSporesPolynucleotidesRegulatory Elements, TranscriptionalCulture MediaPlasmidsViral ProteinsSequence Homology, Nucleic AcidPuromycinKineticsPolyribosomesDNA-Binding ProteinsPhenylalanineAcrylatesChemical PrecipitationCarbon RadioisotopesChromatography, DEAE-CelluloseEnzyme RepressionRestriction MappingHot TemperatureVirus CultivationCell NucleusIsoleucineNucleotidesElectrophoresisAdenineOperonValine-tRNA LigaseConserved SequenceBlotting, NorthernGene ExpressionGenes, ReporterL Cells (Cell Line)Chromatography, PaperSpecies SpecificityChromosome MappingSulfur Isotopes