ATP1A3 and alternating hemiplegia of childhood: We sought to develop gene editing strategies to correct five ATP1A3 mutations that collectively represent 65% of ATP1A3associated AHC cases: D801N c.2401A (“D801N”), E815K c.2443A (“E815K”), L839P c.2516C (“L839P”), G947R c.2839A (“G947R-A”), and G947R c.2839C (“G947R-C”).