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dc.contributor.authorUrcelay, Elena-
dc.contributor.authorJareño, María A.-
dc.contributor.authorMenaya, Juan-
dc.contributor.authorParrilla, Roberto L.-
dc.contributor.authorSánchez Ayuso, Matilde-
dc.contributor.authorMartín-Requero, Ángeles-
dc.date.accessioned2013-03-25T10:45:21Z-
dc.date.available2013-03-25T10:45:21Z-
dc.date.issued2000-12-
dc.identifier.citationEuropean Journal of Biochemistry 267(24):1-10(2000)es_ES
dc.identifier.issn0014-2956-
dc.identifier.urihttp://hdl.handle.net/10261/72851-
dc.description9 páginas, 5 figuras, 1 tabla -- PAGS nros. 7209-7217es_ES
dc.description.abstractWe report data on the structural and functional characterization of the 5′ flanking region of the human mitochondrial glycerol-3-phosphate dehydrogenase (mtGPDH) gene. We found two regions upstream of 5′-untranslated sequences exhibiting promoter activity in transient transfection assays. Transcription start sites and potential regulatory sites in both promoter regions were defined. The proximal promoter was approximately sevenfold more active than the distal one in most cell lines, but it was only twice as active in a neuroblastoma cell line. These observations seem to indicate that the rate of transcription, as well as the tissue-specific expression of the human mtGPDH gene, is the result of a combinatorial effect of transcription factors on at least two promoters. 3,5,3′-Triiodothyronine failed to alter the transcriptional activity of human mtGPDH promoter(s) constructs in transient transfection assays. Although this finding seems to be in conflict with the reported effect of 3,5,3′-triiodothyronine in rodents, it is consistent with our observation of 3,5,3′-triiodothyronine stimulation of mtGPDH activity in primary cultures of rat adipocytes, but not human cultured adipocytes, suggesting distinct regulation of this gene in both specieses_ES
dc.description.sponsorshipThis work was supported in part by grants from the Spanish Dirección General de Enseñanza Superior e Investigación Científica (PM97-0016 and PB97-1240), and Fondo de Investigaciones Sanitarias (96/2014). E. Urcelay is a recipient of a tenure-track research contract from the Spanish Secretary of Education and Science. The expert technical assistance of María José Arias-Salgado is gratefully acknowledgedes_ES
dc.language.isoenges_ES
dc.publisherWiley-Blackwelles_ES
dc.rightsclosedAccesses_ES
dc.subjectMitochondrial glycerol phosphate dehydrogenasees_ES
dc.subjectpromoteres_ES
dc.subjectthyroid hormonees_ES
dc.titleCloning and functional characterization of the 5´ regulatory region of the human mitochondrial glycerol-3-phosphate dehydrogenase gene. Lack of 3,5,3´-triiodothyronine responsiveness in adipose tissuees_ES
dc.typeartículoes_ES
dc.identifier.doi10.1046/j.1432-1327.2000.01832.x-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1046/j.1432-1327.2000.01832.xes_ES
dc.identifier.e-issn1432-1033-
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