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 GTPPurification and functional characterization of glutamate-1-semialdehyde aminotransferase from Chlamydomonas reinhardtii.
Jahn D, Chen M, Söll D. Purification and functional characterization of glutamate-1-semialdehyde aminotransferase from Chlamydomonas reinhardtii. Journal Of Biological Chemistry 1991, 266: 161-167. PMID: 1985889, DOI: 10.1016/s0021-9258(18)52416-9.Peer-Reviewed Original ResearchMeSH KeywordsAminooxyacetic AcidCell MembraneChlamydomonasChromatography, DEAE-CelluloseChromatography, GelChromatography, High Pressure LiquidChromatography, Ion ExchangeCyclohexanecarboxylic AcidsElectrophoresis, Polyacrylamide GelIntramolecular TransferasesIsomerasesKineticsMolecular WeightPyridoxal PhosphateConceptsGlutamate-1-semialdehyde aminotransferaseGlutamyl-tRNA synthetaseC5 pathwayChlamydomonas reinhardtiiGreen alga Chlamydomonas reinhardtiiGlu-tRNA reductaseTRNA-dependent transformationChloroplasts of plantsGlutamyl-tRNA reductaseAlga Chlamydomonas reinhardtiiDelta-aminolevulinic acidApparent molecular massWhole cell extractsChlorophyll biosynthesisSodium dodecyl sulfate-polyacrylamide gel electrophoresisC. reinhardtiiDodecyl sulfate-polyacrylamide gel electrophoresisSulfate-polyacrylamide gel electrophoresisRate zonal sedimentationFunctional characterizationThird enzymeGlycerol gradientsCell extractsReinhardtiiMembrane fraction
1990
Expression of the Synechocystis sp. strain PCC 6803 tRNA(Glu) gene provides tRNA for protein and chlorophyll biosynthesis
O'Neill G, Söll D. Expression of the Synechocystis sp. strain PCC 6803 tRNA(Glu) gene provides tRNA for protein and chlorophyll biosynthesis. Journal Of Bacteriology 1990, 172: 6363-6371. PMID: 2121711, PMCID: PMC526821, DOI: 10.1128/jb.172.11.6363-6371.1990.Peer-Reviewed Original ResearchConceptsSynechocystis 6803Synechocystis spFirst anticodon baseStrain PCC 6803Cyanobacterium Synechocystis spTotal tRNA populationAmount of chlorophyllNorthern blot analysisChlorophyll biosynthesisALA biosynthesisPrecursor tRNAsPCC 6803TRNA speciesProtein biosynthesisTRNA populationCellular RNAAminoacylation assaysChlorophyll levelsBiosynthesisAddition of inhibitorsBlot analysisTranslation systemDelta-aminolevulinic acidTRNAChlorophyllPurification of the glutamyl-tRNA reductase from Chlamydomonas reinhardtii involved in delta-aminolevulinic acid formation during chlorophyll biosynthesis.
Chen M, Jahn D, O'Neill G, Söll D. Purification of the glutamyl-tRNA reductase from Chlamydomonas reinhardtii involved in delta-aminolevulinic acid formation during chlorophyll biosynthesis. Journal Of Biological Chemistry 1990, 265: 4058-4063. PMID: 2303495, DOI: 10.1016/s0021-9258(19)39702-9.Peer-Reviewed Original ResearchConceptsGlu-tRNA reductaseGlutamyl-tRNA reductaseGlu-tRNAChlamydomonas reinhardtiiTRNA-dependent transformationChloroplasts of plantsDelta-aminolevulinic acid formationApparent molecular massChlorophyll biosynthesisGlutamyl-tRNAHomologous tRNAsSecond enzymeActive enzymeMolecular massNondenaturing conditionsDifferent chromatographic separationsCertain bacteriaReductaseDelta-aminolevulinic acidReinhardtiiPorphyrin biosynthesisBiosynthesisStable complexesChromatographic separationCarboxyl groups
1989
delta-Aminolevulinic acid biosynthesis in Escherichia coli and Bacillus subtilis involves formation of glutamyl-tRNA.
O'Neill G, Chen M, Söll D. delta-Aminolevulinic acid biosynthesis in Escherichia coli and Bacillus subtilis involves formation of glutamyl-tRNA. FEMS Microbiology Letters 1989, 51: 255-9. PMID: 2511063, DOI: 10.1016/0378-1097(89)90406-0.Peer-Reviewed Original ResearchConceptsDelta-aminolevulinic acid biosynthesisChloroplasts of algaeTRNA-dependent transformationB. subtilisE. coliBacillus subtilisHigher plant speciesEscherichia coliPlant speciesAnaerobic eubacteriaGlutamyl-tRNAAcid biosynthesisCell-free extractsCell extractsBiosynthetic activitySubtilisDelta-aminolevulinic acidColiGabaculinAnaerobic conditionsAlaEubacteriaArchaebacteriaChloroplastsCyanobacteria
1988
Formation of the chlorophyll precursor delta-aminolevulinic acid in cyanobacteria requires aminoacylation of a tRNAGlu species
O'Neill G, Peterson D, Schön A, Chen M, Söll D. Formation of the chlorophyll precursor delta-aminolevulinic acid in cyanobacteria requires aminoacylation of a tRNAGlu species. Journal Of Bacteriology 1988, 170: 3810-3816. PMID: 2900830, PMCID: PMC211375, DOI: 10.1128/jb.170.9.3810-3816.1988.Peer-Reviewed Original ResearchConceptsPrecursor delta-aminolevulinic acidHigher plantsUnicellular cyanobacterium Synechocystis spGlutamate-1-semialdehyde aminotransferaseCell extractsCyanobacterium Synechocystis spDelta-aminolevulinic acidSouthern blot analysisIdentical primary sequencesSynechocystis spNucleotide modificationsConversion of glutamateGene copiesALA synthesisPrimary sequenceSequence specificityTerminal enzymePolyacrylamide gel electrophoresisChloroplastsEuglena gracilisEscherichia coliSpeciesBlot analysisTRNAGel electrophoresis