Search results for "Upstream activating sequence"

showing 2 items of 2 documents

GAL4-responsive UAS- tau as a tool for studying the anatomy and development of the Drosophila central nervous system

1997

To improve the quality of cytoplasmic labelling of GAL4-expressing cells in Drosophila enhancer-trap and transgenic strains, a new GAL4-responsive reporter UAS-tau, which features a bovine tau cDNA under control of a yeast upstream activation sequence (UAS), was tested. Tau, a microtubule-associated protein, is distributed actively and evenly into all cellular processes. Monoclonal anti-bovine Tau antibody reveals the axonal structure of the labelled cells with detail similar to that of Golgi impregnation. We demonstrate that the UAS-tau system is especially useful for studying processes of differentiation and reorganisation of identified neurones during postembryonic development.

Central Nervous SystemSaccharomyces cerevisiae ProteinsHistologyTransgenetau ProteinsBiologyProteomicsPathology and Forensic MedicineAnimals Genetically ModifiedFungal ProteinsUpstream activating sequenceGenes ReporterComplementary DNAmental disordersAnimalsEnhancer trapGenetic TestingTranscription factorNeuronsRegulation of gene expressionMetamorphosis BiologicalAntibodies MonoclonalGene Expression Regulation DevelopmentalCell BiologyAnatomyDNA-Binding ProteinsEnhancer Elements GeneticCytoplasmCattleDrosophilaTranscription FactorsCell and Tissue Research
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Reciprocal regulation of the human sterol regulatory element binding protein (SREBP)-1a promoter by Sp1 and EGR-1 transcription factors.

2007

AbstractSterol regulatory element binding protein (SREBP)-1a is a transcription factor that is highly expressed in actively growing cells, and is involved in the biosynthesis of cholesterol, fatty acids and phospholipids. We have mapped the minimal human SREBP-1a promoter region to 75bp upstream of the translation start site where we discovered a functional role for the 3 GC-boxes containing overlapping sites for the Sp1 and EGR-1 transcription factors. Intact SP1-binding sites are essential for promoter activity, whereas EGR-1 suppresses the transcription of the human SREBP-1a promoter. These results reveal a novel physiologically relevant transcriptional mechanism for the reciprocal regul…

Egr-1Chromatin ImmunoprecipitationSp1 Transcription FactorSREBP-1aResponse elementMolecular Sequence DataBiophysicsElectrophoretic Mobility Shift AssayBiologyBiochemistrySp1Cell LineUpstream activating sequenceStructural BiologyTranscription (biology)Sequence Homology Nucleic AcidGene expressionGeneticsHumansPromoter Regions GeneticMolecular BiologyTranscription factorGeneral transcription factorBase SequenceReverse Transcriptase Polymerase Chain ReactionPromoterPromoterCell BiologySterol regulatory element-binding proteinBiochemistryEarly Growth Response Transcription Factorslipids (amino acids peptides and proteins)Gene expressionSterol Regulatory Element Binding Protein 1FEBS letters
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