GABRG2 and Generalized myoclonic-atonic seizure: In 2013, Carvill (Carvill et al., 2013) reported a male patient with epilepsy presenting myoclonic-atonic seizures (EMAS) who carried a GABRG2 variant (p.R323Q) and experienced multiple seizure types, including GTCS, absence seizures, atonic seizures, myoclonic seizures, and tonic-clonic seizures.