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Título: | Genomic organization and identification of a novel alternative splicing variant of mouse mitochondrial thioredoxin reductase (TrxR2) gene |
Autor: | Miranda-Vizuete, Antonio CSIC ORCID; Spyrou, Giannis | Palabras clave: | Alternative splicing Mitochondria Mouse Thioredoxin reductase |
Fecha de publicación: | 30-jun-2002 | Editor: | Korean Society for Molecular and Cellular Biology | Citación: | Molecules and Cells 13(3): 488-492 (2002) | Resumen: | Eukaryotic mitochondria are equipped with a com-plete thioredoxin system, composed of thioredoxin and thioredoxin reductase, which has been implicated in the protection against the reactive oxygen intermedi-ates generated during the respiratory process in this organelle. Like its cytosolic counterpart, mammalian mitochondrial thioredoxin reductase is a homodimeric selenoprotein. We report here the genomic organiza-tion of the mouse mitochondrial thioredoxin gene (TrxR2) that spans 53 kb and consists of 18 exons ranging from 20 to 210 bp. All splicing sites conformed to the GT/AG rule with the exon-intron boundaries located exactly at the same position as the human TrxR2 gene, the only mammalian mitochondrial thio-redoxin reductase gene whose genomic structure has been elucidated to date. In addition, we have identified a novel mRNA splicing variant lacking intron 14 re-sulting in a protein subunit with a shorter interface domain. This new splicing variant provides a frame-work for further analysis of this important enzyme as its predicted homodimeric conformation can now be expanded to a putative heterodimeric structure as well as a small subunit homodimer with the obvious impli-cations at the regulatory level. | Descripción: | 19 páginas, 2 figuras, 1 tabla. | Versión del editor: | http://www.molcells.org/article_pdf/Ksmcb/13/Ksmcb13-3-19.pdf | URI: | http://hdl.handle.net/10261/47406 | ISSN: | 1016-8478 | E-ISSN: | 0219-1032 |
Aparece en las colecciones: | (IBIS) Artículos |
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Manuscript revised.doc | Texto | 70 kB | Microsoft Word | Visualizar/Abrir |
Figura 1.JPG | Figura 1 | 38,48 kB | JPEG | Visualizar/Abrir |
Figure 2.ppt | Figura 2 | 455,5 kB | Microsoft Powerpoint | Visualizar/Abrir |
Table 1.doc | Tabla | 21 kB | Microsoft Word | Visualizar/Abrir |
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