RNA, CatalyticRNA CleavageRibonuclease PEndoribonucleasesNucleic Acid ConformationRNABase SequenceMolecular Sequence DataRNA, BacterialRNA PrecursorsRNA, ViralCatalysisEscherichia coli ProteinsSubstrate SpecificityRNA, TransferRNA, Small InterferingEscherichia coliMagnesiumKineticsRNA Processing, Post-TranscriptionalModels, MolecularRNA, RibosomalBinding SitesDNA, CatalyticRNA-Induced Silencing ComplexRNA SplicingRNA EditingRNA, MessengerRNA, Double-StrandedRibonucleasesDNA-Directed RNA PolymerasesRNA InterferenceRibonuclease HRNA StabilityRibonuclease IIIRibonuclease, PancreaticAmino Acid SequenceRNA Polymerase IIOligoribonucleotidesHydrolysisRNA, FungalIntronsRNA, Ribosomal, 28STranscription Factors, GeneralArgonaute ProteinsTranscriptional Elongation FactorsDNA CleavageRNA VirusesTranscription, GeneticMutationTemplates, GeneticPoly ARNA FoldingBase PairingRNA-Binding ProteinsCleavage Stage, OvumRNA HelicasesHeLa CellsRNA, AntisenseProtein BiosynthesisProtein BindingProtein Structure, TertiaryCations, DivalentRNA, Small NuclearSequence Homology, Amino AcidRecombinant ProteinsRNA, UntranslatedCatalytic DomainRNA CapsNucleic Acid HybridizationManganeseDNA PrimersSequence Analysis, RNAConserved SequenceRNA, PlantCell LineSaccharomyces cerevisiaeEndopeptidases