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Frequent mutations of SCN1A in severe myoclonic epilepsy in infancy
T Sugawara1, E Mazaki-Miyazaki, K Fukushima
1Laboratory for Neurogenetics, RIKEN, Brain Science Institute, Saitama, Japan.
Neurology
|April 10, 2002
Abstract:
Mutations in the neuronal voltage-gated sodium channel alpha-subunit type I gene (SCN1A) were found responsible for severe myoclonic epilepsy in infancy (SMEI). The authors describe novel mutations of SCN1A in Japanese patients with SMEI. They screened 12 unrelated patients and a pair of monozygotic twins and detected 10 mutations that lead to truncation of the protein.