CatalysisEnzymesRNA, TransferBiocatalysisKineticstRNA MethyltransferasesModels, MolecularSubstrate SpecificityCatalytic DomainBinding SitesMolecular Sequence DataModels, ChemicalEscherichia coliCrystallography, X-RayAnticodonQuantum TheoryProtein ConformationAmino Acid SequenceMutagenesis, Site-DirectedBase SequenceRNA, Transfer, Amino Acid-SpecificThermodynamicsHydrogen-Ion ConcentrationRNA, Transfer, Amino AcylNucleic Acid ConformationEnzyme StabilityMutationRNA, Transfer, SerHydrogen BondingDecarboxylationHydrogenStructure-Activity RelationshipAmino Acyl-tRNA SynthetasesRNA, Transfer, PheHydrolysisProtein BindingHistidineStatic ElectricityTetrahydrofolate DehydrogenaseProtein Structure, TertiaryRNA, Transfer, TrpOxidation-ReductionRecombinant ProteinsMolecular ConformationRNA, Transfer, ArgRNA, Transfer, MetRNA, Transfer, GlyRNA, Transfer, IleSolventsMolecular StructureRNA, Transfer, AlaRNA, Transfer, AspRNA, Transfer, GluStereoisomerismSequence Homology, Amino AcidTemperatureProtein Structure, SecondaryRNA, Transfer, ValAmino Acid SubstitutionPseudomonasCloning, MolecularProtonsSpectrophotometryMolecular Dynamics SimulationRNA, Transfer, GlnCysteineRNA, Transfer, ProChromatography, High Pressure LiquidNADPOxidoreductasesBacterial ProteinsRNA, Transfer, HisMagnetic Resonance SpectroscopyRNA, BacterialNuclear Magnetic Resonance, BiomolecularComputer SimulationProteinsWaterAmino AcidsAdenosine TriphosphateEnzyme ActivationAminoacylationRNA, CatalyticRNA, Transfer, ThrCodonOxygenSaccharomyces cerevisiaeRNA, FungalSerine-tRNA LigaseThiouridineRNA, Transfer, CysAcylationEndoribonucleasesMolecular WeightRibosomesProtein BiosynthesisRNA Processing, Post-TranscriptionalRibonuclease PSuppression, GeneticTyrosine-tRNA Ligase