GABRB1 and epilepsy: We found that variants in the epilepsy-associated genes GABRA1, GABRB3 and GABRG2 were mainly present in the ESP variants, but the GEC cohort contained epilepsy-associated GABRA6, GABRB1, and GABRB2 and non-epilepsy- associated GABRA4, GABRA5, and GABRG3 genes.