期刊
HUMAN MUTATION
卷 29, 期 11, 页码 E231-E241出版社
WILEY
DOI: 10.1002/humu.20844
关键词
Walker-Warburg syndrome; congenital muscular dystrophy; alpha-dystroglycan; POMT1; POMT2; FCMD; FKRP
资金
- National Institutes of Health [R37 NS35129-05, K23 NS049159]
- Muscular Dystrophy Association
Walker-Warburg syndrome (WWS) is a genetically heterogeneous autosomal recessive disease characterized by congenital muscular dystrophy, cobblestone lissencephaly, and ocular malformations. Mutations in six genes involved in the glycosylation of a-dystroglycan (POMT1, POMT2, POMGNT1, FCMD, FKRP and LARGE) have been identified in WWS patients, but account for only a portion of WWS cases. To better understand the genetics of WWS and establish the frequency and distribution of mutations across WWS genes, we genotyped all known loci in a cohort of 43 WWS patients of varying geographical and ethnic origin. Surprisingly, we reached a molecular diagnosis for 40% of our patients and found mutations in POMT1, POMT2, FCMD and FKRP, many of which were novel alleles, but no mutations in POMGNT1 or LARGE. Notably, the FCMD gene was a more common cause of WWS than previously expected in the European/American subset of our cohort, including all Ashkenazi Jewish cases, who carried the same founder mutation. (C) 2008 Wiley-Liss, Inc.
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