rs119103251

A SNP in the PYGM gene on chromosome 11. Its most notable genotype is T;T: McArdle disease (also known as glycogen storage disease type V)

Gene
PYGM
Location
Chr 1164,757,826 (GRCh38)
Highest magnitude
5.0Very important
Tested on
AncestryDNA
Minor allele frequency
<1%

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

SNPedia records rs119103251 on the minus strand: (A;A), (A;G), (G;G). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Notes

From SNPedia

Notes

PYGM gene, c.613G>A, p.Gly205Ser or G205S 23andMe name: i5005799

C;T

Unaffected in absence of a second mutation in the PYGM gene

Source and license

Adapted from rs119103251 on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.

SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.