Ribonuclease HRibonucleasesRibonuclease, PancreaticRibonuclease H, Human Immunodeficiency VirusEndoribonucleasesRibonuclease T1RNA-Directed DNA PolymeraseRibonuclease PMolecular Sequence DataHIV Reverse TranscriptaseEscherichia coliRNAExoribonucleasesRibonuclease IIISubstrate SpecificityAmino Acid SequenceOligoribonucleotidesBase SequenceBenzocycloheptenesPolynucleotidesEndonucleasesKineticsHydrazonesModels, MolecularPlacental HormonesCattleEnzyme StabilityRNA, BacterialTropolonePyranocoumarinsProtein DenaturationNucleic Acid ConformationPoly TChromatography, Ion ExchangeProtein ConformationCations, DivalentMolecular WeightMagnesiumEosinophil-Derived NeurotoxinHydrolysisBinding SitesReverse Transcriptase InhibitorsPolyribonucleotidesManganeseGammaretrovirusChromatography, DEAE-CellulosePancreasDNA-Directed DNA PolymerasePolyribonucleotide NucleotidyltransferaseProtein Structure, TertiaryDNANucleic Acid DenaturationElectrophoresis, Polyacrylamide GelNucleic Acid HybridizationThymus GlandHIV-1Centrifugation, Density GradientOncogenic VirusesAvian myeloblastosis virusRibosome SubunitsThermus thermophilusCrystallography, X-RayHydrogen-Ion ConcentrationSequence AlignmentRNA, TransferRNA Processing, Post-TranscriptionalStructure-Activity RelationshipCircular DichroismMutagenesis, Site-DirectedCloning, MolecularMutationCytidine MonophosphateCatalytic DomainTemplates, GeneticGametogenesis, PlantProtein FoldingRauscher VirusRNA, ViralRetroelementsThermodynamicsRNA, CatalyticSequence Homology, Amino AcidTemperatureDNA PrimersGuanosine MonophosphateSolanaceaeAvian leukosis virusTritiumRecombinant ProteinsRNA, MessengerAmino Acid SubstitutionPlasmidsRNA StabilityTranscription, GeneticArtiodactylaMagnetic Resonance SpectroscopyAmino AcidsProtein Structure, SecondaryRibonucleoproteinsRNA Precursors