Novel mutation of SCN1A in familial generalized epilepsy with febrile seizures plus.
Article Details
- CitationCopy to clipboard
Li N, Zhang J, Guo JF, Yan XX, Xia K, Tang BS
Novel mutation of SCN1A in familial generalized epilepsy with febrile seizures plus.
Neurosci Lett. 2010 Aug 23;480(3):211-4. doi: 10.1016/j.neulet.2010.06.040. Epub 2010 Jun 18.
- PubMed ID
- 20600615 [ View in PubMed]
- Abstract
Generalized epilepsy with febrile seizures plus (GEFS+) is an epileptic syndrome inherited in autosomal dominant mode. Of all the identified causative GEFS+ genes, voltage-gated sodium channel alpha1 subunit gene (SCN1A) is the most clinically relevant one. We describe here the clinical and molecular characterization of a GEFS+ family. A novel heterozygous mutation c.5383G>A was revealed by direct sequencing of the SCN1A gene for both affected and unaffected individuals. It is speculated that the function of the sodium channel could be compromised by the substitution of lysine for a highly conserved residue glutamic acid at position 1795 within the C-terminus of alpha1 subunit. Our finding extends the spectrum of SCN1A mutations related to GEFS+ and further confirms the contribution of the sodium channel genes to the etiology of idiopathic epilepsies.