1977
Regulation of biosynthesis of aminoacyl-tRNA synthetases and of tRNA in Escherichia coli II. Isolation of regulatory mutants affecting leucyl-tRNA synthetase levels
LaRossa R, Vögeli G, Low K, Söll D. Regulation of biosynthesis of aminoacyl-tRNA synthetases and of tRNA in Escherichia coli II. Isolation of regulatory mutants affecting leucyl-tRNA synthetase levels. Journal Of Molecular Biology 1977, 117: 1033-1048. PMID: 342703, DOI: 10.1016/s0022-2836(77)80011-9.Peer-Reviewed Original ResearchConceptsLeucyl-tRNA synthetaseThermolabile leucyl-tRNA synthetaseRegulation of biosynthesisDistinct genetic lociAminoacyl-tRNA synthetasesEscherichia coli IIOperator-promoter regionStructural geneRegulatory mutantsGenetic lociEscherichia coli strainsSuch revertantsSpontaneous revertantsThermolabile enzymeLociSynthetaseColi strainsRevertantsSynthetase levelsLeuTRNAMutantsSynthetasesLeuXBiosynthesis
1972
Glutamyl Transfer Ribonucleic Acid Synthetase of Escherichia coli II. INTERACTION WITH INTACT GLUTAMYL TRANSFER RIBONUCLEIC ACID
Lapointe J, Söll D. Glutamyl Transfer Ribonucleic Acid Synthetase of Escherichia coli II. INTERACTION WITH INTACT GLUTAMYL TRANSFER RIBONUCLEIC ACID. Journal Of Biological Chemistry 1972, 247: 4975-4981. PMID: 4341532, DOI: 10.1016/s0021-9258(19)44926-0.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphateAmino Acyl-tRNA SynthetasesCarbon IsotopesCatalysisCentrifugation, Density GradientDiphosphatesDrug StabilityEscherichia coliGlutamatesHot TemperatureHydrogen-Ion ConcentrationKineticsLeucineMagnesiumPhosphorus IsotopesProtein BindingRNA, TransferSpectrometry, FluorescenceValineConceptsGlutamyl-transfer ribonucleic acid synthetaseEscherichia coli IITransfer ribonucleic acidTRNA-GluTRNA-ValTRNA-LeuCognate tRNABiological specificityRibonucleic acidPure enzymeEnzymeSimilar Km valuesComplex formationGradient centrifugationSynthetaseKm valuesFluorescence-quenching studiesTRNAIsoacceptorsComplexesFluorescence quenching studiesHeat inactivationInactivationLeuGlu