1992
Switching tRNA(Gln) identity from glutamine to tryptophan.
Rogers M, Adachi T, Inokuchi H, Söll D. Switching tRNA(Gln) identity from glutamine to tryptophan. Proceedings Of The National Academy Of Sciences Of The United States Of America 1992, 89: 3463-3467. PMID: 1565639, PMCID: PMC48888, DOI: 10.1073/pnas.89.8.3463.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acyl-tRNA SynthetasesAnticodonBase SequenceBeta-GalactosidaseCloning, MolecularEscherichia coliGenes, BacterialGenes, SuppressorGenes, SyntheticGlutamineMolecular Sequence DataMutagenesis, Site-DirectedNucleic Acid ConformationRNA, Transfer, GlnSuppression, GeneticTetrahydrofolate DehydrogenaseTryptophanConceptsOpal suppressorEscherichia coli glutaminyl-tRNA synthetaseAccuracy of aminoacylationGlutaminyl-tRNA synthetaseN-terminal sequence analysisEfficient suppressorYeast mitochondriaRespective tRNAsUCA anticodonAmber suppressorFol geneUGA codonUGA mutationsSequence analysisAlanine insertionAnticodonGenetic selectionBase pairsBase substitutionsSuppressorTRNATrpRSDihydrofolate reductasePosition 35Mutations
1988
Accuracy of in Vivo Aminoacylation Requires Proper Balance of tRNA and Aminoacyl-tRNA Synthetase
Swanson R, Hoben P, Sumner-Smith M, Uemura H, Watson L, Söll D. Accuracy of in Vivo Aminoacylation Requires Proper Balance of tRNA and Aminoacyl-tRNA Synthetase. Science 1988, 242: 1548-1551. PMID: 3144042, DOI: 10.1126/science.3144042.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acyl-tRNA SynthetasesBeta-GalactosidaseEscherichia coliKineticsPlasmidsRNA, Transfer, Amino Acid-SpecificRNA, Transfer, GlnConceptsAminoacyl-tRNA synthetaseAminoacyl-tRNA synthetasesProtein biosynthesisAccuracy of aminoacylationCognate aminoacyl-tRNA synthetaseAmber suppressorVivo aminoacylationGln-tRNA synthetaseCognate tRNATRNAExquisite specificityAminoacylationSynthetaseAccurate aminoacylationSynthetasesBiosynthesisIntracellular concentrationRelative levelsProper balanceComplexed formsSuppressorEscherichiaGlnSite-directed mutagenesis to fine-tune enzyme specificity
Uemura H, Rogers M, Swanson R, Watson L, Söll D. Site-directed mutagenesis to fine-tune enzyme specificity. Protein Engineering Design And Selection 1988, 2: 293-296. PMID: 3150543, DOI: 10.1093/protein/2.4.293.Peer-Reviewed Original ResearchConceptsOligonucleotide-directed mutagenesisEscherichia coli glutaminyl-tRNA synthetaseGenetic selectionGlutaminyl-tRNA synthetaseAmino acid replacementsSite-directed mutagenesisAcid replacementsEnzyme specificitySingle residueMutagenesisSide chainsRepulsive charge-charge interactionsSpecific recognitionCharge-charge interactionsNucleic acidsMutantsProteinSupFSynthetaseResiduesGlutamineSelection
1985
Two control systems modulate the level of glutaminyl-tRNA synthetase in Escherichia coli
Cheung A, Watson L, Söll D. Two control systems modulate the level of glutaminyl-tRNA synthetase in Escherichia coli. Journal Of Bacteriology 1985, 161: 212-218. PMID: 2578447, PMCID: PMC214858, DOI: 10.1128/jb.161.1.212-218.1985.Peer-Reviewed Original ResearchConceptsGlutaminyl-tRNA synthetaseEscherichia coli glutaminyl-tRNA synthetaseBeta-galactosidase structural genePost-transcriptional regulationStructural geneTranscriptional controlRegulatory mutationsTranslational levelGln-10Metabolic regulationEscherichia coliSynthetaseVivo expressionTranscriptionGrowth conditionsRegulationMRNA levelsRegulatory studiesSynthetase levelsMutationsGlnGrowth rateGenesPromoterColi