1991
Two glutamyl-tRNA reductase activities in Escherichia coli
Jahn D, Michelsen U, Söll D. Two glutamyl-tRNA reductase activities in Escherichia coli. Journal Of Biological Chemistry 1991, 266: 2542-2548. PMID: 1990004, DOI: 10.1016/s0021-9258(18)52279-1.Peer-Reviewed Original ResearchConceptsReductase activityGlu-tRNA reductaseMolecular massEscherichia coliApparent molecular massDifferent chromatographic separationsSequence-specific recognitionGlycerol gradient centrifugationThree-step conversionTetrapyrrole biosynthesisChlamydomonas reinhardtiiE. coli K12ALA formationChromatographic separationKey enzymeMonomeric structureActive enzymeBacillus subtilisColi K12Nondenaturing conditionsHomogeneous proteinMolecular weightDelta-aminolevulinic acidEnzyme activityAddition of GTP
1990
Enzymatic 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