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TMEM43 mutations associated with arrhythmogenic right ventricular cardiomyopathy in non-Newfoundland populations
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Medicinsk genetik.
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2013 (Engelska)Ingår i: Human Genetics, ISSN 0340-6717, E-ISSN 1432-1203, Vol. 132, nr 11, s. 1245-1252Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a myocardial disease characterized by fibro-fatty replacement of right ventricular free wall myocardium and life-threatening ventricular arrhythmias. A missense mutation, c.1073C>T (p.S358L) in the transmembrane protein 43 (TMEM43) gene, has been genetically identified to cause ARVC type 5 in a founder population from Newfoundland. It is unclear whether this mutation occurs in other populations outside of this founder population or if other variants of TMEM43 are associated with ARVC disease. We sought to identify non-Newfoundland individuals with TMEM43 variants among patient samples sent for genetic assessment for possible ARVC. Of 195 unrelated individuals with suspected ARVC, mutation of desmosomal proteins was seen in 28 and the p.S358L TMEM43 mutation in six. We identified a de novo p.S358L mutation in a non-Newfoundland patient and five separate rare TMEM43 (four novel) sequence variants in non-Newfoundland patients, each occurring in an evolutionarily conserved amino acid. TMEM43 mutations occur outside of the founder population of the island of Newfoundland where it was originally described. TMEM43 sequencing should be incorporated into clinical genetic testing for ARVC patients.

Ort, förlag, år, upplaga, sidor
2013. Vol. 132, nr 11, s. 1245-1252
Nationell ämneskategori
Medicinsk genetik
Identifikatorer
URN: urn:nbn:se:uu:diva-208530DOI: 10.1007/s00439-013-1323-2ISI: 000325706500005PubMedID: 23812740OAI: oai:DiVA.org:uu-208530DiVA, id: diva2:652935
Tillgänglig från: 2013-10-02 Skapad: 2013-10-02 Senast uppdaterad: 2018-01-11Bibliografiskt granskad

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