Case report A novel POMT2 mutation causes mild congenital muscular dystrophy with normal brain MRI
2009
We report a patient harboring a novel homozygous mutation of c.604T > G (p.F202V) in POMT2. He showed delayed psychomotor development but acquired the ability to walk at the age of 3 years and 10 months. His brain MRI was normal. No ocular abnormalities were seen. Biopsied skeletal muscle revealed markedly decreased but still detectable glycosylated forms of alpha-dystroglycan (a-DG). Our results indicate that mutations in POMT2 can cause a wide spectrum of clinical phenotypes as observed in other genes associated with a-dystroglycanopathy. Presence of small amounts of partly glycosylated a-DG may have a role in reducing the clinical symptoms of a-dystroglycanopathy. 2008 Elsevier B.V. All rights reserved.
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