2000
Antisense HEMA1 RNA Expression Inhibits Heme and Chlorophyll Biosynthesis in Arabidopsis1
Kumar A, Söll D. Antisense HEMA1 RNA Expression Inhibits Heme and Chlorophyll Biosynthesis in Arabidopsis1. Plant Physiology 2000, 122: 49-56. PMID: 10631248, PMCID: PMC58843, DOI: 10.1104/pp.122.1.49.Peer-Reviewed Original ResearchConceptsConstitutive cauliflower mosaic virus 35S promoterCauliflower mosaic virus 35S promoterTransgenic Arabidopsis plantsGlutamyl-tRNA reductaseBiosynthesis of tetrapyrrolesNormal growth conditionsLevels of chlorophyllFormation of ALAArabidopsis plantsChlorophyll biosynthesisHemA geneChlorophyll deficiencyGsa geneFirst enzymeGene expressionEnzymatic stepsSecond enzymeHeme synthesisPlantsReductase expressionChlorophyllGrowth conditionsBiosynthesisHemeGenes
1994
Glutamyl‐tRNA as an Intermediate in Glutamate Conversions
Verkamp E, Kumar A, Lloyd A, Martins O, Stange‐Thomann N, Söll D. Glutamyl‐tRNA as an Intermediate in Glutamate Conversions. 1994, 545-550. DOI: 10.1128/9781555818333.ch27.Peer-Reviewed Original ResearchNumber of reactionsPorphyrin ringInitial precursorSynthesis of selenocysteineReactionAmino acidsPhotosynthetic reactionsIntermediatesCompoundsChain formationConversionPrecursorsAcidFormationPorphyrinsFirst conversionHemeSynthesisMoleculesGlu-tRNATransamidationConversion of glutamateGlutamyl-tRNARingSelenocysteine
1991
Transfer RNA Involvement in Chlorophyll Biosynthesis
O’Neill G, Jahn D, Söll D. Transfer RNA Involvement in Chlorophyll Biosynthesis. Subcellular Biochemistry 1991, 17: 235-264. PMID: 1796486, DOI: 10.1007/978-1-4613-9365-8_11.Peer-Reviewed Original ResearchConceptsTransfer RNARegulation of hemeBranched biosynthetic pathwayPorphyrin biosynthesisBiosynthesis of ALAPhotosynthetic metabolismChlorophyll biosynthesisRNA involvementArchaebacterial kingdomMammalian cellsBiosynthetic pathwayChlorophyll synthesisBacterial systemsBiosynthesisRecent rapid progressPlantsCentral roleAlaHemeTetrapyrrole ringEnzymePathwayFive-carbonProkaryotesExperimental system
1990
Transfer RNA and the formation of the heme and chlorophyll precursor, 5-aminolevulinic acid.
O'Neill G, Söll D. Transfer RNA and the formation of the heme and chlorophyll precursor, 5-aminolevulinic acid. BioFactors 1990, 2: 227-35. PMID: 2282139.Peer-Reviewed Original ResearchConceptsGlu-tRNA reductaseSequence-specific recognitionDual-function moleculeNADPH-dependent enzymeThree-step pathwayTransfer RNASpecific cofactorsChlorophyll precursorsLow molecular weight metabolitesNovel roleAmino acidsReduction of glutamatePeptide bond synthesisTRNAWeight metabolitesHemeMetabolic conversionBond synthesisBiosynthesisRNAOrganismsAcidCofactorProteinGlutamate