Two novel mutations in PEO1 (twinkle) gene associated with chronic external ophthalmoplegia.
Two novel mutations in PEO1 (twinkle) gene associated with chronic external ophthalmoplegia.
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DOI:
10.1016/j.jns.2011.05.042
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发表时间:
2011-09-15
影响因子:
4.4
通讯作者:
Comi, Giacomo P.
中科院分区:
文献类型:
--
作者:
Ronchi, Dario;Fassone, Elisa;Bordoni, Andreina;Sciacco, Monica;Lucchini, Valeria;Di Fonzo, Alessio;Rizzuti, Mafalda;Colombo, Irene;Napoli, Laura;Ciscato, Patrizia;Moggio, Maurizio;Cosi, Alessandra;Collotta, Martina;Corti, Stefania;Bresolin, Nereo;Comi, Giacomo P.
关键词:
Maintenance and replication of mitochondrial DNA require the concerted action of several factors encoded by nuclear genome. The mitochondrial helicase Twinkle is a key player of replisome machinery. Heterozygous mutations in its coding gene, PEO1, are associated with progressive external ophthalmoplegia (PEO) characterised by ptosis and ophthalmoparesis, with cytochrome c oxidase (COX)-deficient fibres, ragged-red fibres (RRF) and multiple mtDNA deletions in muscle. Here we describe clinical, histological and molecular features of two patients presenting with mitochondrial myopathy associated with PEO. PEO1 sequencing disclosed two novel mutations in exons 1 and 4 of the gene, respectively. Although mutations in PEO1 exon 1 have already been described, this is the first report of mutation occurring in exon 4.
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影响因子:
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作者:
Tyynismaa, Henna;Ylikallio, Emil;Suomalainen, Anu
通讯作者:
Suomalainen, Anu
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Spelbrink, JN;Li, FY;Larsson, C
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Suomalainen, A
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通讯作者:
Taylor, Robert W.
影响因子:
14.5
作者:
Amati-Bonneau, Patrizia;Valentino, Maria Lucia;Carelli, Valerio
通讯作者:
Carelli, Valerio