1996
Homologous Expression and Purification of Mutants of an Essential Protein by Reverse Epitope-Tagging
Thomann H, Ibba M, Hong K, Söll D. Homologous Expression and Purification of Mutants of an Essential Protein by Reverse Epitope-Tagging. Bio/Technology 1996, 14: 50-55. PMID: 9636312, DOI: 10.1038/nbt0196-50.Peer-Reviewed Original ResearchConceptsGlutaminyl-tRNA synthetaseMutant enzymesEssential enzymeGlutaminyl-tRNA synthetasesWild-type proteinExtrachromosomal genetic elementsEpitope taggingEssential proteinsMutant proteinsHomologous expressionReporter epitopeCell-free extractsGenetic elementsNormal phenotypeBiochemical studiesEnzymatic activityEnzymeProteinSynthetaseProtein contaminationExpressionPurificationMutantsSynthetasesNovel strategy
1984
Transcription factor binding is limited by the 5'-flanking regions of a Drosophila tRNAHis gene and a tRNAHis pseudogene.
Cooley L, Schaack J, Burke DJ, Thomas B, Söll D. Transcription factor binding is limited by the 5'-flanking regions of a Drosophila tRNAHis gene and a tRNAHis pseudogene. Molecular And Cellular Biology 1984, 4: 2714-2722. PMID: 6570190, PMCID: PMC369281, DOI: 10.1128/mcb.4.12.2714.Peer-Reviewed Original ResearchConceptsDrosophila Kc cell extractHeLa cell extractsCell extractsReal genesStable complex formationControl regionDeletion analysisStable transcription complex formationRecombinant clonesDrosophila tRNAArg geneTRNA gene clusterTranscription complex formationBona fide genesInternal control regionTranscription factor bindingSame DNA strandComplex formationTranscription control regionsConsecutive base pairsTRNAHis geneTRNAArg geneFide genesGene clusterTranscription factorsFactor bindingThe extent of a eukaryotic tRNA gene. 5‘- and 3‘-flanking sequence dependence for transcription and stable complex formation.
Schaack J, Sharp S, Dingermann T, Burke DJ, Cooley L, Söll D. The extent of a eukaryotic tRNA gene. 5‘- and 3‘-flanking sequence dependence for transcription and stable complex formation. Journal Of Biological Chemistry 1984, 259: 1461-1467. PMID: 6693417, DOI: 10.1016/s0021-9258(17)43429-6.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsArginineBase SequenceChromosome DeletionDrosophilaGenesHeLa CellsHumansMutationRNA, TransferTranscription, GeneticConceptsStable complex formationBase pairsDrosophila Kc cell extractSequence requirementsCell extractsEukaryotic tRNA genesStable transcription complexesHeLa cell extractsTRNA genesComplex formationTranscription complexArg genesEfficient transcriptionTranscription assaysTranscription propertiesCell-free extractsTranscriptionHomologous systemGenesSequenceSequence dependenceCellular sourceExtractAssaysPairs
1983
Each element of the Drosophila tRNA Arg gene split promoter directs transcription in Xenopus oocytes
Sharp S, Dingermann T, Schaack J, Sharp J, Burke D, DeRobertis E, Söll D. Each element of the Drosophila tRNA Arg gene split promoter directs transcription in Xenopus oocytes. Nucleic Acids Research 1983, 11: 8677-8690. PMID: 6561520, PMCID: PMC326616, DOI: 10.1093/nar/11.24.8677.Peer-Reviewed Original ResearchConceptsD-control regionDrosophila tRNAArg geneTRNAArg geneEukaryotic tRNA gene transcriptionXenopus oocytesRNA polymerase III transcription factorT-control regionEukaryotic tRNA genesTRNA gene transcriptionIntragenic control regionTranscription initiation siteSpecific DNA sequencesTRNA genesTranscription initiationArg genesControl regionTranscription factorsGene transcriptionDNA sequencesMutant formsOocyte nucleusSequence 5Initiation siteGenesTranscription