We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Benign familial neonatal convulsions (BFNC) resulting from mutation of the KCNQ2 voltage sensor.
- Authors
del Giudice, Emanuele Miraglia; Coppola, Giangennaro; Scuccimarra, Goffredo; Cirillo, Grazia; Bellini, Giulia; Pascotto, Antonio
- Abstract
Benign familial neonatal convulsions (BFNC) is a rare autosomal inherited epilepsy. We studied the KCNQ2 coding region in a large, four-generation, Italian family with BFNC. A missense mutation C686T predicting the change of one of the innermost arginine (R214W) of the key functional voltage sensor (S4 helix), has been found in all affected members. This substitution probably reduces the movement of the voltage sensor that precedes channel opening during voltage-dependent activation. Several mutations affecting the trans-membrane domain and the pore region of the K[sup +] channels belonging to the KQT-like family have been described in some human diseases associated with altered regulation of cellular excitability (ie BFNC, some LQT syndromes and DFNA2). R214W represents the first mutation involving the region of the voltage sensor.
- Publication
European Journal of Human Genetics, 2000, Vol 8, Issue 12, p994
- ISSN
1018-4813
- Publication type
Academic Journal
- DOI
10.1038/sj.ejhg.5200570