GABRG2 and sleep-related hypermotor epilepsy: In our SHE patients (P7, W48, and W58), we detected three variants (NM_198903:c.1070C > A, p.Thr357Asn, de novo; c.649C > T, p.Gln217X, inherited from unaffected father; c.269C > T, p.Thr90Met, inherited from unaffected mother) in GABRG2 at different time points (Table 2).