2012
The Mechanism of Pre-transfer Editing in Yeast Mitochondrial Threonyl-tRNA Synthetase*
Ling J, Peterson KM, Simonović I, Söll D, Simonović M. The Mechanism of Pre-transfer Editing in Yeast Mitochondrial Threonyl-tRNA Synthetase*. Journal Of Biological Chemistry 2012, 287: 28518-28525. PMID: 22773845, PMCID: PMC3436575, DOI: 10.1074/jbc.m112.372920.Peer-Reviewed Original ResearchConceptsPre-transfer editingThreonyl-tRNA synthetaseHydrolytic water moleculeFundamental biological processesNormal cellular functionAminoacyl-tRNA synthetasesPost-transfer editingPost-transfer editing activityTranslational fidelityAminoacylation siteCellular functionsAminoacylation active siteBiological processesMST1Conformational changesEditing activitySeryl adenylateAmino acidsSpecialized domainsEditingSerineSites 100SynthetaseActive siteAdenylateYeast mitochondrial threonyl-tRNA synthetase recognizes tRNA isoacceptors by distinct mechanisms and promotes CUN codon reassignment
Ling J, Peterson KM, Simonović I, Cho C, Söll D, Simonović M. Yeast mitochondrial threonyl-tRNA synthetase recognizes tRNA isoacceptors by distinct mechanisms and promotes CUN codon reassignment. Proceedings Of The National Academy Of Sciences Of The United States Of America 2012, 109: 3281-3286. PMID: 22343532, PMCID: PMC3295322, DOI: 10.1073/pnas.1200109109.Peer-Reviewed Original ResearchMeSH KeywordsAeropyrumAmino Acid SequenceAnticodonCatalytic DomainCodonCrystallography, X-RayEscherichia coliEvolution, MolecularLeucineMitochondriaModels, MolecularMolecular Sequence DataProtein ConformationProtein Structure, TertiaryRNA EditingRNA, Transfer, Amino AcylSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSequence AlignmentSpecies SpecificityStaphylococcus aureusSubstrate SpecificityThreonineThreonine-tRNA LigaseConceptsThreonyl-tRNA synthetaseAnticodon loopAnticodon sequenceEscherichia coli ThrRSSet of tRNAsDistinct recognition mechanismsAnticodon-binding domainAminoacyl-tRNA synthetasesCUN codonsDetailed structural comparisonCodon reassignmentYeast mitochondriaGenetic codeTRNA isoacceptorsSaccharomyces cerevisiaeIsoacceptor tRNAsEditing domainTRNAMST1Anticodon tripletStructural comparisonNatural tRNAAmino acidsDistinct mechanismsRecognition mechanism
2011
An unusual tRNAThr derived from tRNAHis reassigns in yeast mitochondria the CUN codons to threonine
Su D, Lieberman A, Lang BF, Simonović M, Söll D, Ling J. An unusual tRNAThr derived from tRNAHis reassigns in yeast mitochondria the CUN codons to threonine. Nucleic Acids Research 2011, 39: 4866-4874. PMID: 21321019, PMCID: PMC3113583, DOI: 10.1093/nar/gkr073.Peer-Reviewed Original ResearchConceptsCUN codonsYeast mitochondriaGenetic codeAlloacceptor tRNA gene recruitmentComprehensive phylogenetic analysisStandard genetic codeThreonyl-tRNA synthetaseHistidyl-tRNA synthetaseGene recruitmentEvolutionary originPhylogenetic analysisRecoding eventBiochemical experimentsFirst nucleotideAnticodon loopMST1CodonFirst clear exampleYeastMitochondriaThreonineSynthetaseCandida albicansGenomeClear example