Variable expressivity of a novel mutation in the SCN1A gene leading to an autosomal dominant seizure disorder

A. A. Mhanni, J. N. Hartley, W. G. Sanger, A. E. Chudley, E. L. Spriggs

Research output: Contribution to journalArticle


Mutations in the SCN1A gene can cause a variety of dominantly inherited epilepsy syndromes. Severe phenotypes usually result from loss of function mutations, whereas missense mutations cause a milder phenotype by altering the sodium channel activity. We report on a novel missense variant (p.Val1379Leu) in the SCN1A gene segregating in an autosomal dominant pattern in a family exhibiting a variable epilepsy phenotype ranging from generalized epilepsy with febrile seizures during infancy to a well controlled seizure disorder in adulthood. This report supports the importance of SCN1A mutation analysis in families in which seizure disorders segregate in an autosomal dominant fashion.

Original languageEnglish (US)
Pages (from-to)711-712
Number of pages2
Issue number9
Publication statusPublished - Nov 1 2011



  • Dominant
  • GEFS+
  • SCN1A

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

Cite this