1991
delta-Aminolevulinic acid dehydratase deficiency can cause delta-aminolevulinate auxotrophy in Escherichia coli
O'Neill G, Thorbjarnardóttir S, Michelsen U, Pálsson S, Söll D, Eggertsson G. delta-Aminolevulinic acid dehydratase deficiency can cause delta-aminolevulinate auxotrophy in Escherichia coli. Journal Of Bacteriology 1991, 173: 94-100. PMID: 1987138, PMCID: PMC207161, DOI: 10.1128/jb.173.1.94-100.1991.Peer-Reviewed Original ResearchConceptsALA dehydratase activityEscherichia coliWild-type geneClasses of mutantsDNA sequence analysisAminoglycoside antibiotic kanamycinHeme biosynthetic pathwayALA biosynthesisWild-type DNAAuxotrophic phenotypeComplementation studiesDehydratase activityHemB geneBiosynthetic pathwayPositive regulationALA formationSame geneMutantsPenicillin enrichmentSequence analysisGenesAntibiotic kanamycinDiffusible productHemB mutantEnzymatic activity
1983
Stable transcription complex formation of eukaryotic tRNA genes is dependent on a limited separation of the two intragenic control regions.
Dingermann T, Sharp S, Schaack J, Söll D. Stable transcription complex formation of eukaryotic tRNA genes is dependent on a limited separation of the two intragenic control regions. Journal Of Biological Chemistry 1983, 258: 10395-10402. PMID: 6309803, DOI: 10.1016/s0021-9258(17)44470-x.Peer-Reviewed Original ResearchConceptsIntragenic control regionControl regionTRNA genesTRNAArg geneDrosophila Kc cell extractStable transcription complex formationTranscription efficiencyDrosophila tRNAArg geneT-control regionMutant tRNA genesEukaryotic tRNA genesTranscription complex formationStable transcription complexesWild-type geneXhoI linkerTranscriptional roleTranscription initiationTranscription complexDNA regionsType genesTranscription factorsGene transcriptionTermination sitesDNA fragmentsCell extracts
1982
The minimum intragenic sequences required for promotion of eukaryotic tRNA gene transcription
Sharp S, Dingermann T, Söll D. The minimum intragenic sequences required for promotion of eukaryotic tRNA gene transcription. Nucleic Acids Research 1982, 10: 5393-5406. PMID: 6924209, PMCID: PMC320884, DOI: 10.1093/nar/10.18.5393.Peer-Reviewed Original ResearchConceptsD-control regionTRNA genesIntragenic control regionTranscription systemControl regionTRNAArg geneRNA synthesisGene transcriptionEukaryotic tRNA gene transcriptionHeLa cell transcription systemDrosophila tRNAArg geneT-control regionMutant tRNA genesEukaryotic tRNA genesTRNA gene transcriptionRNA polymerase IIIWild-type geneAdjacent flanking sequencesHeLa systemsMature tRNAIntragenic regionsSpecific transcriptionPolymerase IIIXenopus laevis oocytesDNA sequences