rs118204448

A SNP in the GALNS gene on chromosome 16. Its most notable genotype is C;T: Carrier of an Mucopolysaccharidosis, MPS-IV-A mutation

Gene
GALNS
Location
Chr 1688,835,240 (GRCh38)
Highest magnitude
3.0Important
Tested on
AncestryDNA

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

SNPedia records rs118204448 on the minus strand: (A;G), (G;G), (G;T). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Notes

From SNPedia

Notes

aka c.871G>T (p.Ala291Ser) and also c.871G>A (p.Ala291Thr)

C;T

Unaffected in absence of a second GALNS gene mutation

A;C

Unaffected in absence of a second GALNS gene mutation

Source and license

Adapted from rs118204448 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.