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Eur J Neurol. 2010 May;17(5):754-6. doi: 10.1111/j.1468-1331.2009.02859.x. Epub 2009 Nov 13.

The occurrence of mutations in FUS in a Belgian cohort of patients with familial ALS.

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Department of Neurology, Leuven University Hospital, Herestraat 49, 3000 Leuven, Belgium.



Mutations in fused in sarcoma (FUS) were recently identified as a cause of familial amyotrophic lateral sclerosis (ALS). The frequency of occurrence of mutations in FUS in sets of patients with familial ALS remains to be established.


We sequenced the FUS gene in a cohort of patients with familial ALS seen at the neuromuscular clinic in Leuven. A total of 28 patients with SOD1-negative ALS from 22 families were analyzed.


We identified a R521H mutation in 4 patients, belonging to a kindred of dominantly inherited classical ALS. The mutation segregated with disease. Mutations in FUS were observed in 2.9% of ALS pedigrees in our cohort.


These results show that mutations in FUS are also a significant cause of familial ALS in Belgium.

[Indexed for MEDLINE]

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