rs146922325

A SNP in the PROC gene on chromosome 2. Its most notable genotype is T;T: Complete protein-C deficiency; severe thrombophilia

Gene
PROC
Location
Chr 2127,426,114 (GRCh38)
Highest magnitude
8.0Very important
Tested on
AncestryDNA
Minor allele frequency
<1%

Genotypes

As shown in 23andMe and AncestryDNA files.

On SNPedia: (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

aka c.565C>T, p.Arg189Trp, R189W The rs146922325(T) mutation may be the most frequent pathogenic variant associated with venous thromboembolism in East Asian (including Chinese) populations.

C;T

Likely to be a milder form. See links via main rs-page.

T;T

Possibly less severe form. See links via main rs-page.

Source and license

Adapted from rs146922325 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.