rs797045193

A SNP in the SLC52A3 gene on chromosome 20. Its most notable genotype is G;G: Brown-Vialetto-Van Laere syndrome type 1 mutation; riboflavin treatment recommended

Gene
SLC52A3
Location
Chr 20765,551 (GRCh38)
Highest magnitude
8.0Very important
Tested on
AncestryDNA

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

SNPedia records rs797045193 on the minus strand: (C;C), (C;T), (T;T). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Conditions, medicines and genes

Notes

From SNPedia

Notes

G;G

See discussion at Brown-Vialetto-Van laere syndrome, including recommendation for immediate riboflavin supplementation.

A;G

Unaffected carrier in absence of second mutation; see discussion at Brown-Vialetto-Van laere syndrome.

Source and license

Adapted from rs797045193 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.