SLC6A1 and epilepsy with myoclonic atonic seizures: Pathogenic mutations in hGAT-1 were first identified in patients with myoclonic-atonic epilepsy (MAE), a generalized epilepsy syndrome characterized by multiple seizure types - including myoclonic, myoclonic-atonic, atonic, and absence seizures - each exhibiting variable severity and clinical presentation (Mattison et al., 2018).