New DGK gene mutations in the hepatocerebral form of mitochondrial DNA depletion syndrome

被引:35
作者
Mancuso, M
Ferraris, S
Pancrudo, J
Feigenbaum, A
Raiman, J
Christodoulou, J
Thorburn, DR
DiMauro, S
机构
[1] Columbia Univ Coll Phys & Surg, Dept Neurol, New York, NY 10032 USA
[2] Univ Pisa, Dept Neurosci, Pisa, Italy
[3] Univ Toronto, Toronto, ON, Canada
[4] Hosp Sick Children, Div Clin Genet & Metab, Toronto, ON M5G 1X8, Canada
[5] Royal Childrens Hosp, Murdoch Childrens Res Inst, Genet Hlth Serv Victoria, Melbourne, Vic, Australia
[6] Univ Melbourne, Dept Pediat, Melbourne, Vic, Australia
关键词
D O I
10.1001/archneur.62.5.745
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Objective: To document novel homozygous mutations in the gene for deoxyguanosine kinase (DGK) in 3 children with mitochondrial DNA depletion. Design: Clinical features included liver failure, hypotoma, And nystagmus in 2 siblings, and liver cirrhosis, optic dysplasia, nystagmus, and microcephaly in the third patient. We sequenced the whole coding region of the DGK gene. Results: We identified 2 novel homozygous mutations, G352A and C269T, that lead to truncated proteins. Conclusion: These data confirm that DGK mutations typically affect the liver and brain.
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页码:745 / 747
页数:3
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