Genetic CodeStereoisomerismCodonAnticodonCodon, TerminatorMolecular ConformationOxygen IsotopesTransfer RNA AminoacylationAmino Acyl-tRNA SynthetasesRNA, TransferMolecular StructureCyclizationAmino AcidsRNA, Transfer, CysEvolution, MolecularAlkenesAminoacylationMagnetic Resonance SpectroscopyModels, MolecularMolecular Sequence DataBase SequenceProtein BiosynthesisSubstrate SpecificityTyrosine-tRNA LigaseCiliophoraCatalysisChemistry Techniques, SyntheticNucleic Acid ConformationChemistry, OrganicModels, GeneticAmino Acid SequenceForaminiferaRNA, Transfer, AlaEscherichia coliRNA, Transfer, IleRNA, Transfer, Amino Acid-SpecificMethanococcalesStructure-Activity RelationshipKineticsFuransCrystallography, X-RayAlanine-tRNA LigaseLoligoPalladiumArctiumThionucleotidesSpiro CompoundsRNA, Transfer, SerRNA, Transfer, Amino AcylRNA EditingLeucine-tRNA LigaseRNA, Transfer, TyrHydrogen BondingBinding SitesSelenocysteineEuplotesMonoiodotyrosineBiological ProductsProtein ConformationPhysicochemical PhenomenaGenes, MitochondrialAcetalsBiological EvolutionProteinsBiogenesisDiplomonadidaCodes of EthicsIsoleucine-tRNA LigasePhylogenyRNA, Transfer, GlyRNA, Transfer, TrpDNASerine-tRNA LigaseEpoxy CompoundsRNA, Transfer, LeuCyclohexenesLoranthaceaeMethanosarcinaModels, ChemicalAlkynesMutationAurodoxCombinatorial Chemistry TechniquesCinchona AlkaloidsPeptide Termination FactorsTryptophan-tRNA LigaseHydrogenationMycoplasma capricolumRNAScrophulariaceaeDirected Molecular EvolutionLysine-tRNA LigaseProtein Modification, TranslationalBase PairingThreonine-tRNA LigaseAldehyde-LyasesChromatography, High Pressure LiquidRNA, Transfer, AsnIsomerismIsomerases