rs28940302

A SNP in the VKORC1P1 gene on chromosome X. Its most notable genotype is T;T.

Gene
VKORC1P1
Location
Chr X27,863,980 (GRCh38)
Highest magnitude
2.0Worth knowing
Tested on
23andMe

Genotypes

As shown in 23andMe and AncestryDNA files.

  1. C;CNot ratedNo summary available.Typical · 0.0
  2. G;GNot ratedNo summary available.Typical · 0.0
  3. T;TMost notableNot ratedNo summary available.Worth knowing · 2.0

On SNPedia: (C;C), (G;G), (T;T). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Conditions, medicines and genes

Other VKORC1P1 SNPs

All VKORC1P1 SNPs

Notes

From SNPedia

Notes

this is one of several snps which influences warfarin dosage

Source and license

Adapted from rs28940302 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.