Regulatory Sequences, Nucleic AcidPoly ARNA, BacterialUridineTritiumCarbon IsotopesPhosphorus IsotopesUracilBase SequenceRNACentrifugation, Density GradientGenetics, MicrobialRNA, TransferRNA, MessengerPoly UUracil NucleotidesRNA, RibosomalRibonucleasesPoly(ADP-ribose) PolymerasesEscherichia coliPoly CMolecular Sequence DataPoly I-CTranscription, GeneticAmino Acyl-tRNA SynthetasesGenes, RegulatorPromoter Regions, GeneticDactinomycinRNA NucleotidyltransferasesChloramphenicolCell-Free SystemRibosomesRifampinRNA, ViralEnhancer Elements, GeneticMutationLeucineGene Expression RegulationChromatographyDNANucleic Acid DenaturationGenesPolynucleotidesGenetic CodeElectrophoresis, DiscOrotic AcidPoly A-UCytosine NucleotidesSucroseNucleic Acid HybridizationColiphagesDNA-Directed RNA PolymerasesPoly dA-dTPoly(A)-Binding ProteinsProtein BiosynthesisTranscription FactorsPoly Adenosine Diphosphate RiboseDNA, BacterialBacterial ProteinsCulture TechniquesBinding SitesPoly GPoly ITemperatureBacillus subtilisSporesGalactosidasesRegulatory Elements, TranscriptionalAcrylatesCulture MediaPolyribosomesEnzyme RepressionPhenylalanineMethioninePuromycinAdenineNucleotidesCarbon RadioisotopesCell LineAmino AcidsVirus CultivationCell NucleusDNA-Binding ProteinsMolecular WeightCloning, MolecularChromatography, DEAE-CelluloseIsoleucineChemical PrecipitationGenes, ReporterValine-tRNA LigaseHot TemperatureChromatography, PaperNitrosoguanidinesElectrophoresis, Polyacrylamide GelL Cells (Cell Line)Poly TConserved SequencePlasmidsElectrophoresisMagnesium