2000
Methanococcus jannaschii Prolyl-Cysteinyl-tRNA Synthetase Possesses Overlapping Amino Acid Binding Sites †
Stathopoulos C, Jacquin-Becker C, Becker H, Li T, Ambrogelly A, Longman R, Söll D. Methanococcus jannaschii Prolyl-Cysteinyl-tRNA Synthetase Possesses Overlapping Amino Acid Binding Sites †. Biochemistry 2000, 40: 46-52. PMID: 11141055, DOI: 10.1021/bi002108x.Peer-Reviewed Original ResearchConceptsAmino acidsTRNA synthetaseProtein translation apparatusCysteinyl-tRNA synthetase activityCognate tRNA speciesSite-directed mutagenesisAmino acid activationAbsence of tRNAAmino acid residuesSynthetase activityTranslation apparatusMethanococcus jannaschiiTRNA speciesCysteine activationUnusual enzymeDifferent amino acidsMutant enzymesCysteine bindingProline bindingProlyl-tRNA synthetase activityAcid residuesAminoacyl-tRNAPosition 103Single enzyme
1996
Transfer RNA-dependent cognate amino acid recognition by an aminoacyl-tRNA synthetase.
Hong K, Ibba M, Weygand-Durasevic I, Rogers M, Thomann H, Söll D. Transfer RNA-dependent cognate amino acid recognition by an aminoacyl-tRNA synthetase. The EMBO Journal 1996, 15: 1983-91. PMID: 8617245, PMCID: PMC450117, DOI: 10.1002/j.1460-2075.1996.tb00549.x.Peer-Reviewed Original ResearchConceptsAmino acid recognitionEscherichia coli glutaminyl-tRNA synthetaseAccuracy of aminoacylationProtein-RNA interactionsRole of tRNAGlutaminyl-tRNA synthetaseAmino acid affinityCharacterization of mutantsAminoacyl-tRNA synthetaseAmino acid activationSpecific interactionsSubstrate recognitionEnzyme active siteGlnRActive siteAcceptor stemTRNAAminoacylationAcid affinityPosition 235TerminusSynthetaseObserved roleGlnTRNAGlnEscherichia coli Tryptophanyl-tRNA Synthetase Mutants Selected for Tryptophan Auxotrophy Implicate the Dimer Interface in Optimizing Amino Acid Binding †
Sever S, Rogers K, Rogers M, Carter C, Söll D. Escherichia coli Tryptophanyl-tRNA Synthetase Mutants Selected for Tryptophan Auxotrophy Implicate the Dimer Interface in Optimizing Amino Acid Binding †. Biochemistry 1996, 35: 32-40. PMID: 8555191, DOI: 10.1021/bi952103d.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceBacillus subtilisBase SequenceBinding SitesCloning, MolecularDNA PrimersEscherichia coliGenes, BacterialGeobacillus stearothermophilusHaemophilus influenzaeKineticsMacromolecular SubstancesModels, MolecularMolecular Sequence DataPolymerase Chain ReactionProtein FoldingProtein Structure, SecondaryRecombinant ProteinsRestriction MappingSequence Homology, Amino AcidTryptophanTryptophan-tRNA LigaseConceptsTryptophanyl-tRNA synthetaseDimer interfaceClass I aminoacyl-tRNA synthetasesAminoacyl-tRNA synthetasesAmino acid bindingAmino acid activationActive siteSteady-state kinetic analysisSynthetase mutantsRossmann foldApparent KmKMSKS loopTrp lociProtein structureTrpR proteinTryptophan auxotrophDimeric enzymeAuxotrophic strainsBacillus stearothermophilusAcid bindingEscherichia coliOptimal catalysisAminoacyl adenylatesMutantsMutations
1995
Substrate selection by aminoacyl-tRNA synthetases.
Ibba M, Thomann H, Hong K, Sherman J, Weygand-Durasevic I, Sever S, Stange-Thomann N, Praetorius M, Söll D. Substrate selection by aminoacyl-tRNA synthetases. Nucleic Acids Symposium Series 1995, 40-2. PMID: 8643392.Peer-Reviewed Original Research