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  • Title: A novel KCNQ2 K+ channel mutation in benign neonatal convulsions and centrotemporal spikes.
    Author: Coppola G, Castaldo P, Miraglia del Giudice E, Bellini G, Galasso F, Soldovieri MV, Anzalone L, Sferro C, Annunziato L, Pascotto A, Taglialatela M.
    Journal: Neurology; 2003 Jul 08; 61(1):131-4. PubMed ID: 12847176.
    Abstract:
    Patients with benign familial neonatal convulsions (BFNC) may develop various epilepsies or epilepsy-associated EEG traits. A heterozygous 1-base pair deletion (2043DeltaT) in the KCNQ2 gene encoding for K+ channel subunits was found in a patient with BFNC who showed centrotemporal spikes at age 3 years. Electrophysiologic studies showed that mutant K+ channel subunits failed to give rise to functional homomeric channels or exert dominant-negative effects when expressed with KCNQ2/KCNQ3 subunits.
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