2022
Diversification of aminoacyl-tRNA synthetase activities via genomic duplication
Krahn N, Söll D, Vargas-Rodriguez O. Diversification of aminoacyl-tRNA synthetase activities via genomic duplication. Frontiers In Physiology 2022, 13: 983245. PMID: 36060688, PMCID: PMC9437257, DOI: 10.3389/fphys.2022.983245.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsGenomic duplicationSynthetase familyRecent bioinformatic analysisAminoacyl-tRNA synthetase familySynthetic biology applicationsDomains of lifeNew drug targetsAminoacyl-tRNA synthetase activityGene duplicationPhylogenetic diversityEvolutionary eventsGenetic codeBioinformatics analysisImportant bioactive moleculesAdaptive advantageBiological functionsBiological processesBiology applicationsDrug targetsDuplicationAaRSsCatalytic siteSynthetase activityProteinBioactive molecules
1998
Retracing the evolution of amino acid specificity in glutaminyl‐tRNA synthetase
Hong K, Ibba M, Söll D. Retracing the evolution of amino acid specificity in glutaminyl‐tRNA synthetase. FEBS Letters 1998, 434: 149-154. PMID: 9738468, DOI: 10.1016/s0014-5793(98)00968-5.Peer-Reviewed Original ResearchConceptsGlutaminyl-tRNA synthetaseTranslational error rateMolecular phylogenetic studiesAmino acid specificityGlutamyl-tRNA synthetaseFirst biochemical evidenceCellular growth ratePhe-90Phylogenetic studiesSynthetase mutantsTyr-240SynthetaseBiochemical evidenceVivo expressionGenesGlutamic acidActive siteGrowth rateMisacylationMutantsMutagenesisDuplicationDiversificationResiduesKey step
1977
Regulation of biosynthesis of aminoacyl-tRNA synthetases and of tRNA in Escherichia coli I. Isolation and characterization of a mutant with elevated levels of tRNAGln1
Morgan S, Körner A, Low K, Söll D. Regulation of biosynthesis of aminoacyl-tRNA synthetases and of tRNA in Escherichia coli I. Isolation and characterization of a mutant with elevated levels of tRNAGln1. Journal Of Molecular Biology 1977, 117: 1013-1031. PMID: 24122, DOI: 10.1016/s0022-2836(77)80010-7.Peer-Reviewed Original ResearchConceptsGlutaminyl-tRNA synthetaseAminoacyl-tRNA synthetasesRegulation of biosynthesisEscherichia coli strainsGlutamine synthetaseSpontaneous revertantsSynthetasesColi strainsMutantsSynthetaseElevated levelsRevertantsI. IsolationTRNABiosynthesisDuplicationSpeciesMutationsGlnTRegulationOverproductionIsolation