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  • Title: Aberrant splicing of exon 6 in the pyruvate dehydrogenase-E1 alpha mRNA linked to a silent mutation in a large family with Leigh's encephalomyelopathy.
    Author: De Meirleir L, Lissens W, Benelli C, Ponsot G, Desguerre I, Marsac C, Rodriguez D, Saudubray JM, Poggi F, Liebaers I.
    Journal: Pediatr Res; 1994 Dec; 36(6):707-12. PubMed ID: 7898978.
    Abstract:
    Pyruvate dehydrogenase (PDH)-E1 alpha deficiency has recently been studied at the molecular-genetic level. The gene is situated on the X chromosome. We report on an unusual mutation in a familial E1 alpha deficiency. In fibroblasts, PDH deficiency was diagnosed in a young infant presenting with Leigh's encephalomyelopathy and in a maternal nephew with episodes of "malaises." In the two affected children as well as their mothers we found a silent mutation in exon 6 of the PDH-E1 alpha and an aberrant splicing of exon 6 in some of the cDNA clones. This case emphasizes the need for both genomic and cDNA analysis in cases where a PDH-E1 alpha deficiency is strongly suspected.
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