1994
Connecting Anticodon Recognition with the Active Site of Escherichia coli Glutaminyl-tRNA Synthetase
Weygand-Duraševic I, Rogers M, Söll D. Connecting Anticodon Recognition with the Active Site of Escherichia coli Glutaminyl-tRNA Synthetase. Journal Of Molecular Biology 1994, 240: 111-118. PMID: 8027995, DOI: 10.1006/jmbi.1994.1425.Peer-Reviewed Original ResearchConceptsGlutaminyl-tRNA synthetaseAnticodon recognitionMutant enzymesEscherichia coli glutaminyl-tRNA synthetaseOpal suppressor tRNASpecificity constantMutant gene productsWild-type enzymeAmino acid loopExtensive conformational changesActive siteNumber of mutationsSuppressor tRNAGene productsGlnRPathways of communicationSaturation mutagenesisTRNAAcceptor stemAcid loopGenetic selectionConformational changesAnticodonPoor substrateAminoacylation
1989
A selection for mutants of the RNA polymerase III transcription apparatus: PCF1 stimulates transcription of tRNA and 5S RNA genes.
Willis I, Schmidt P, Söll D. A selection for mutants of the RNA polymerase III transcription apparatus: PCF1 stimulates transcription of tRNA and 5S RNA genes. The EMBO Journal 1989, 8: 4281-4288. PMID: 2686985, PMCID: PMC401634, DOI: 10.1002/j.1460-2075.1989.tb08614.x.Peer-Reviewed Original ResearchMeSH KeywordsBase SequenceCloning, MolecularDNA-Directed RNA PolymerasesGene ExpressionGenes, DominantGenes, FungalKineticsMolecular Sequence DataMutationOligonucleotide ProbesPlasmidsPromoter Regions, GeneticRNA Polymerase IIIRNA, RibosomalRNA, Ribosomal, 5SRNA, TransferSaccharomyces cerevisiaeSaccharomycetalesSchizosaccharomycesSelection, GeneticSuppression, GeneticTemplates, GeneticTranscription, GeneticConceptsTRNA genesMutant strainTranscription of mutantsTranscription of tRNARNA polymerase IIISuppressor tRNA geneDominant mutant geneWild-type strainStable complexesTranscription apparatusRNA genesStable complex formationUpstream geneTRNA suppressorsPositive regulatorSteady-state levelsComplex assemblyGenetic approachesPolymerase IIIGene transcriptionInternal promoterMutant geneTime-course experimentsTranscriptionGenes
1988
Site-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