Pyruvate dehydrogenase E1α deficiency in a family : Different clinical presentation in two siblings

The pyruvate dehydrogenase (PDH) complex (PDHc) is responsible for the irreversible conversion of pyruvate to acetyl-CoA. PDHc is a multienzyme complex consisting of three catalytic subunits, pyruvate decarboxylase (E1), dihydrolipoamideacetyltransferase (E2), dihydrolipoamide dehydrogenase (E3), an...

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Detalles Bibliográficos
Autores principales: De Meirleir, L., Spècola, Norma, Seneca, Sara, Lissens, Willy
Formato: Articulo
Lenguaje:Inglés
Publicado: 1998
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/132731
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Sumario:The pyruvate dehydrogenase (PDH) complex (PDHc) is responsible for the irreversible conversion of pyruvate to acetyl-CoA. PDHc is a multienzyme complex consisting of three catalytic subunits, pyruvate decarboxylase (E1), dihydrolipoamideacetyltransferase (E2), dihydrolipoamide dehydrogenase (E3), and two regulatorysubunits, E1 kinase and phospho-E1 phosphatase. An abnormal E1asubunit, whosegene is located on the X chromosome, is the most frequent cause of PDH deÐciency. The clinical presentation of a PDH-E1adeÐciency (McKusick 312170) is variable.We have analysed a family with a mutation (36 bp insertion in exon 10) in thePDH-E1agene in which the male member had a diferent and less severe clinicalpicture than his afected sister.