2001
DOI: 10.1212/wnl.57.12.2295
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A novel missense adenine nucleotide translocator-1 gene mutation in a Greek adPEO family

Abstract: Autosomal dominant progressive external ophthalmoplegia (adPEO) is caused by mutations in at least three different genes: ANT1 (chromosome 4q34-35), TWINKLE, and POLG. The ANT1 gene encodes the adenine nucleotide translocator-1 (ANT1). We identified a heterozygous T293C mutation of the ANT1 gene in a Greek family with adPEO. The resulting leucine to proline substitution likely modifies the secondary structure of the ANT1 protein. ANT1 gene mutations may account for adPEO in families with different ethnic backg… Show more

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Cited by 84 publications
(69 citation statements)
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“…Moreover, the protective roles of the affected proteins appear to be conserved. For example, in humans disruption of adenine nucleotide translocase, encoded by sesB in flies, causes myopathy (Bakker et al 1993) and has been genetically linked to progressive external ophthalmoplegia (Kaukonen et al 2000;Napoli et al 2001;Komaki et al 2002). Mutations in tko correlate with mutations in human myoclonus epilepsy with ''ragged red fibers'' (MERRF) (Berkovic et al 1989;Shoffner et al 1990;Canafoglia et al 2001).…”
Section: Discussionmentioning
confidence: 99%
“…Moreover, the protective roles of the affected proteins appear to be conserved. For example, in humans disruption of adenine nucleotide translocase, encoded by sesB in flies, causes myopathy (Bakker et al 1993) and has been genetically linked to progressive external ophthalmoplegia (Kaukonen et al 2000;Napoli et al 2001;Komaki et al 2002). Mutations in tko correlate with mutations in human myoclonus epilepsy with ''ragged red fibers'' (MERRF) (Berkovic et al 1989;Shoffner et al 1990;Canafoglia et al 2001).…”
Section: Discussionmentioning
confidence: 99%
“…In humans, four isoforms of the ANT protein exist, and they are differently expressed in a tissue-specific manner (Stepien et al 1992;Palmieri 2004;Dolce et al 2005). The human ANT1 isoform is predominantly expressed in skeletal and cardiac muscle, and specific ANT1 mutations are associated with adPEO characterized by mtDNA instability (Kaukonen et al 1999(Kaukonen et al , 2000Napoli et al 2001;Komaki et al 2002;Siciliano et al 2003). In mice, Ant1 knockout induces mitochondrial myopathy (Graham et al 1997), increased H 2 O 2 production, and mtDNA damage and inhibits oxidative phosphorylation (Esposito et al 1999).…”
mentioning
confidence: 99%
“…Des altérations de l'isoforme ANT1 « musculaire » ont été récemment mises en cause dans plusieurs maladies, que ce soit par une mutation de son gène [13,14] ou un dérèglement de son expression [15]. L'implication de l'ANT1 dans divers syndromes a été confirmée chez la souris par une invalidation du gène ANT1 [16]; ces animaux présentent toutes les caractéristiques physiologiques, histologiques et biochimiques des myopathies et des cardiomyopathies: une déficience de l'état 3 de la respiration, des fibres rouges déchiquetées, une hypertrophie cardiaque, une élévation des taux d'acides lactique et citrique et, enfin, une intolérance à l'exercice.…”
Section: Les Ant Dans Les Maladies Humaines Et L'apoptoseunclassified