In a cohort of Chinese families with members affected by paroxysmal kinesigenic dyskinesia, infantile convulsions, and choreoathetosis, direct sequencing showed three different pathogenic mutations (c.649dupC, c.776dupG, and c.649C → T) in the PRRT2 gene [24]. This evidence concerns the gene PRRT2 and episodic kinesigenic dyskinesia 1.