Rs28930068

rs28930068, also known as R1239H or Arg1239His, is a SNP in the CACNA1S gene on chromosome 1.

Carrying one copy of a rs28930068(A) allele is sufficient to result in patients with hypokalemic periodic paralysis, type 1.

This variant meets the criteria published in 2013 by the ACMG regarding incidental findings in exome or genome sequencing, as a variant that they do recommend informing a patient about.