For a general phenotypic description of autosomal dominant nocturnal frontal lobe epilepsy (ADNFLE, ENFL), see 600513. Clustered attacks of epileptic episodes originating from the frontal lobe during sleep represent the main manifestation of ADNFLE.
In affected members of a family with ADNFLE showing linkage to chromosome 1, De Fusco et al. (2000) identified a heterozygous mutations in the CHRNB2 gene (118507.0001).