Given this variant in gene ATP1A2, LOC126805890 (ATPase Na+/K+ transporting subunit alpha 2| CDK7 strongly-dependent group 2 enhancer GRCh37_chr1:160093987-160095186) on Chromosome 1, classify it as benign or pathogenic. Include the disorder it may cause if applicable.
Pathogenic; Familial hemiplegic migraine