2001
Conserved amino acids near the carboxy terminus of bacterial tyrosyl‐tRNA synthetase are involved in tRNA and Tyr‐AMP binding
Salazar J, Zuñiga R, Lefimil C, Söll D, Orellana O. Conserved amino acids near the carboxy terminus of bacterial tyrosyl‐tRNA synthetase are involved in tRNA and Tyr‐AMP binding. FEBS Letters 2001, 491: 257-260. PMID: 11240138, DOI: 10.1016/s0014-5793(01)02214-1.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine MonophosphateBacterial ProteinsCloning, MolecularConserved SequenceDimerizationEscherichia coliGammaproteobacteriaGene ExpressionGenetic Complementation TestGeobacillus stearothermophilusMutagenesis, Site-DirectedRNA, TransferSequence Homology, Amino AcidStructure-Activity RelationshipTyrosineTyrosine-tRNA LigaseConceptsBacterial tyrosyl-tRNA synthetasesBacterial tyrosyl tRNA synthetaseConserved amino acidsAmino acidsAmino acid identityAmino-terminal regionActive site domainCarboxy-terminal segmentTyrosyl-tRNA synthetasesTyrosyl-tRNA synthetaseAcid identityLargest subfamilyCarboxy terminusSite domainTRNA bindingEnzyme functionTyr-AMPTRNATyrRSResiduesEquivalent roleBindingH306S356K395
2000
Ancient Adaptation of the Active Site of Tryptophanyl-tRNA Synthetase for Tryptophan Binding †
Ibba M, Stange-Thomann N, Kitabatake M, Ali K, Söll I, Carter, C, Michael Ibba, and, Söll D. Ancient Adaptation of the Active Site of Tryptophanyl-tRNA Synthetase for Tryptophan Binding †. Biochemistry 2000, 39: 13136-13143. PMID: 11052665, DOI: 10.1021/bi001512t.Peer-Reviewed Original ResearchMeSH KeywordsAcylationAnimalsBacillus subtilisBacterial ProteinsBinding SitesCattleDiphosphatesDNA Mutational AnalysisDNA, BacterialEvolution, MolecularGeobacillus stearothermophilusHumansKineticsMiceMutagenesis, Site-DirectedProtein BindingRabbitsRNA, Transfer, TrpSequence Homology, Amino AcidTryptophanTryptophan-tRNA LigaseTyrosineConceptsAmino acid specificityActive site residuesTyrosyl-tRNA synthetasesTryptophanyl-tRNA synthetaseAncient adaptationAnalogous residuesGlu side chainsTryptophan replacementHomologous positionsSystematic mutationAromatic side chainsTrpRSTryptophan recognitionBacillus stearothermophilusSide chainsTryptophan bindingTyrRSResiduesCommon originCompetitive inhibitorMutationsTrp bindingMechanistic supportCatalytic efficiencyActive site
1994
Thiobacillus ferrooxidans tyrosyl-tRNA synthetase functions in vivo in Escherichia coli
Salazar O, Sagredo B, Jedlicki E, Söll D, Weygand-Durasevic I, Orellana O. Thiobacillus ferrooxidans tyrosyl-tRNA synthetase functions in vivo in Escherichia coli. Journal Of Bacteriology 1994, 176: 4409-4415. PMID: 7517395, PMCID: PMC205654, DOI: 10.1128/jb.176.14.4409-4415.1994.Peer-Reviewed Original ResearchMeSH KeywordsAcidithiobacillus thiooxidansAmino Acid SequenceBase SequenceGene Expression Regulation, BacterialGenes, BacterialGenetic Complementation TestMolecular Sequence DataMutationNucleic Acid HybridizationOperonPromoter Regions, GeneticRNA, BacterialRNA, RibosomalRNA, Transfer, TyrSequence Analysis, DNATyrosine-tRNA LigaseConceptsOverall identityTyrosyl-tRNA synthetase geneRho-independent transcription terminatorEscherichia coli TyrRSClass I aminoacyl-tRNA synthetasesRibosomal RNA operonSingle-copy geneAminoacyl-tRNA synthetasesTyrosyl-tRNA synthetasesSouthern blot analysisRNA operonBioleaching of mineralsThermosensitive mutationTranscription unitTranscription terminatorSynthetase genePutative promoterProtein sequencesSynthetase functionE. coli strainsGenesSignature sequencesEscherichia coliAmino acidsDNA probes