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Clin Genet. 2008 Feb;73(2):139-45. doi: 10.1111/j.1399-0004.2007.00936.x. Epub 2007 Dec 19.

Two new patients bearing mutations in the fukutin gene confirm the relevance of this gene in Walker-Warburg syndrome.

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  • 1Departamento de Bioquímica, Instituto de Investigaciones Biomédicas "Alberto Sols" CSIC-UAM, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain.

Abstract

Walker-Warburg syndrome (WWS) is an autosomal recessive disorder characterized by congenital muscular dystrophy, brain malformations and structural abnormalities of the eye. We have studied two WWS patients born to non-consanguineous parents, and in both cases, we identified mutations in the fukutin gene responsible for this syndrome. One of the patients carries a homozygous-single nucleotide insertion that produces a frameshift, being this the first time that this insertion has been described in homozygosis and causing a WWS phenotype. The other patient carries two novel mutations, one being a point mutation that produces an amino acid substitution, while the other is a deletion in the 3'UTR that affects the polyadenylation signal of the fukutin gene. This deletion would probably result in the complete loss of the fukutin transcripts from this allele. This is the first time a mutation localized outside of the fukutin coding region has been identified as a cause of WWS.

PMID:
18177472
[PubMed - indexed for MEDLINE]
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