2006
A Molecular Tunnel Required for Cooperation of an Asparaginase and a Glu‐tRNAGln Kinase in Gln‐tRNA Formation
Sheppard K, Feng L, Oshikane H, Nakamura Y, Fukai S, Nureki O, Söll D. A Molecular Tunnel Required for Cooperation of an Asparaginase and a Glu‐tRNAGln Kinase in Gln‐tRNA Formation. The FASEB Journal 2006, 20: a503-a503. DOI: 10.1096/fasebj.20.4.a503-a.Peer-Reviewed Original ResearchGlu-tRNAGlnMolecular tunnelMost prokaryotesCo-crystal structurePresence of ATPGln-tRNAGlnSequence similarityEvolutionary linkHeterodimeric enzymeStructural insightsGatDEGatDEnzyme showEnzymatic analysisKinaseAmide donorCrystal structureActive siteATPGlnGluProkaryotesArchaeaTransamidationTight coupling
1997
Defining the Active Site of Yeast Seryl-tRNA Synthetase MUTATIONS IN MOTIF 2 LOOP RESIDUES AFFECT tRNA-DEPENDENT AMINO ACID RECOGNITION*
Lenhard B, Filipić S, Landeka I, Škrtić I, Söll D, Weygand-Durašević I. Defining the Active Site of Yeast Seryl-tRNA Synthetase MUTATIONS IN MOTIF 2 LOOP RESIDUES AFFECT tRNA-DEPENDENT AMINO ACID RECOGNITION*. Journal Of Biological Chemistry 1997, 272: 1136-1141. PMID: 8995413, DOI: 10.1074/jbc.272.2.1136.Peer-Reviewed Original ResearchConceptsMotif 2 loopAmino acid recognitionSeryl-tRNA synthetaseClass II aminoacyl-tRNA synthetasesSeryl-tRNA synthetasesYeast seryl-tRNA synthetaseAmino acidsLoss of complementationAminoacyl-tRNA synthetasesActive sitePresence of tRNASteady-state kinetic analysisProkaryotic counterpartsYeast enzymeElevated Km valuesNull allelesConformational changesTRNAAcceptor endSynthetasesGenesATPStructural dataStructural studiesSerine
1990
Purification and functional characterization of the Glu-tRNA(Gln) amidotransferase from Chlamydomonas reinhardtii.
Jahn D, Kim Y, Ishino Y, Chen M, Söll D. Purification and functional characterization of the Glu-tRNA(Gln) amidotransferase from Chlamydomonas reinhardtii. Journal Of Biological Chemistry 1990, 265: 8059-8064. PMID: 1970821, DOI: 10.1016/s0021-9258(19)39038-6.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphateAmmoniaAsparagineAzo CompoundsBinding SitesChlamydomonasElectrophoresis, Polyacrylamide GelEnzyme ActivationGlutamatesGlutamic AcidGlutamineMagnesiumMolecular WeightNitrogenous Group TransferasesNorleucinePhosphorylationProtein DenaturationRNA, Transfer, Amino AcylSpectrophotometrySubstrate SpecificityTransferasesConceptsChlamydomonas reinhardtiiGlutamyl-tRNA synthetaseGlycerol gradient sedimentationSodium dodecyl sulfate-polyacrylamide gelsDodecyl sulfate-polyacrylamide gelsAmide donorSulfate-polyacrylamide gelsGlutamine-dependent reactionGlutamine amidotransferasesPresence of ATPGreen algaeSpecific amidotransferaseFunctional characterizationGlutaminyl-tRNAAmidotransferaseLow glutaminase activityApparent MrGradient sedimentationAlpha 2 structureReinhardtiiEnzymeATPGlutaminase activityStable complexesAmmonia-dependent reactionEnzymatic addition of guanylate to histidine transfer RNA
Williams J, Cooley L, Söll D. Enzymatic addition of guanylate to histidine transfer RNA. Methods In Enzymology 1990, 181: 451-462. PMID: 2166216, DOI: 10.1016/0076-6879(90)81143-i.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell LineChromatography, AffinityChromatography, DEAE-CelluloseChromatography, Ion ExchangeDrosophilaElectrophoresis, Polyacrylamide GelGuanosine TriphosphateKineticsNucleotidyltransferasesPhosphorus RadioisotopesRadioisotope Dilution TechniqueRNA, Transfer, Amino Acid-SpecificRNA, Transfer, HisSaccharomyces cerevisiaeSubstrate SpecificityConceptsHistidine tRNATransfer RNABacteriophage T5Yeast enzymeEnzyme migratesUridine residuesExtra nucleotidesLigase mechanismAdditional nucleotidesEnzymatic additionGel filtration chromatographyEnzyme intermediateTRNAAbsolute requirementEnzymeMolecular weightNucleotidesUltrogel AcA 34Filtration chromatographyATPDrosophilaAcA 34Molecular weight markersYeastTitration experiments
1971
A Comparative Study of the Interactions of Escherichia coli Leucyl-, Seryl-, and Valyl-Transfer Ribonucleic Acid Synthetases with Their Cognate Transfer Ribonucleic Acids
Myers G, Blank H, Söll D. A Comparative Study of the Interactions of Escherichia coli Leucyl-, Seryl-, and Valyl-Transfer Ribonucleic Acid Synthetases with Their Cognate Transfer Ribonucleic Acids. Journal Of Biological Chemistry 1971, 246: 4955-4964. PMID: 4936720, DOI: 10.1016/s0021-9258(18)61956-8.Peer-Reviewed Original ResearchConceptsEscherichia coli KSeryl-tRNA synthetaseLeucyl-tRNA synthetaseRibonucleic acidTransfer ribonucleic acidValyl-tRNA synthetaseTRNA recognitionColi KSynthetase-tRNA complexIsoacceptorsAmino acidsEquilibrium binding studiesPing-pong typeTRNASynthetaseEnzymeKm valuesSubstrate inhibitionBasic similaritiesBinding studiesSerylAcidATPSame bufferSequence
1970
The Interaction of Seryl and of Leucyl Transfer Ribonucleic Acid Synthetases with Their Cognate Transfer Ribonucleic Acids
Knowles J, Katze J, Konigsberg W, Söll D. The Interaction of Seryl and of Leucyl Transfer Ribonucleic Acid Synthetases with Their Cognate Transfer Ribonucleic Acids. Journal Of Biological Chemistry 1970, 245: 1407-1415. PMID: 4910800, DOI: 10.1016/s0021-9258(18)63251-x.Peer-Reviewed Original ResearchConceptsSeryl-tRNA synthetaseTransfer ribonucleic acidComplex formationTransfer RNA speciesLeucyl-tRNA synthetaseRibonucleic acidRNA speciesCognate tRNAEscherichia coliSynthetaseDensity gradient centrifugationTRNAStable complexesHigh saltGradient centrifugationSpeciesGel filtrationComplexesSerylColiATPEnzymeAcidSerFormation