Severe infantile encephalomyopathy caused by a mutation in COX6B1, a nucleus-encoded subunit of cytochrome c oxidase

被引:139
作者
Massa, Valeria [1 ]
Fernandez-Vizarra, Erika [1 ]
Alshahwan, Saad [2 ]
Bakhsh, Eman [3 ]
Goffrini, Paola [4 ]
Ferrero, Ileana [4 ]
Mereghetti, Paolo [5 ]
D'Adamo, Pio [6 ]
Gasparini, Paolo [6 ]
Zeviani, Massimo [1 ]
机构
[1] Neurol Inst C Besta, Dept Mol Neurogenet, Fdn IRCCS, I-20126 Milan, Italy
[2] Riyadh Mil Hosp, Dept Pediat, Riyadh 11159, Saudi Arabia
[3] Riyadh Mil Hosp, Dept Neuroradiol, Riyadh 11159, Saudi Arabia
[4] Univ Parma, Dept Genet Anthropol Evolut, I-43100 Parma, Italy
[5] Univ Milano Bicocca, Dept Biotechnol & Biosci, I-20126 Milan, Italy
[6] Univ Trieste, IRCCS Burlo Garofolo, Dept Med Genet, I-34137 Trieste, Italy
关键词
D O I
10.1016/j.ajhg.2008.05.002
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Cytochrome c oxidase (COX) deficiency, one of the most common respiratory-chain defects in humans, has been associated with mutations in either mitochondrial DNA genes or nucleus-encoded proteins that are not part in but promote the biogenesis of COX. Mutations of nucleus-encoded structural subunits were sought for but never found in COX-defective patients, leading to the conjecture that they may be incompatible with extra-uterine survival. We report a disease-associated mutation in one such subunit, COX6B1. Nuclear-encoded COX genes should be reconsidered and included in the diagnostic mutational screening of human disorders related to COX deficiency.
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收藏
页码:1281 / 1289
页数:9
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