According to the OMIM database, variants in the CACNA1A gene cause “Developmental and epileptic encephalopathy 42,” “Episodic ataxia, type 2,” “Migraine, familial hemiplegic, 1,” “Migraine, familial hemiplegic, 1, with progressive cerebellar ataxia,” and “Spinocerebellar ataxia 6” diseases. The gene discussed is CACNA1A; the disease is Familial paroxysmal ataxia.