rs118203906

A SNP in the F5 gene on chromosome 1. Its most notable genotype is G;G: Hemophilia A (severity varies)

Gene
F5
Location
Chr 1169,555,299 (GRCh38)
Highest magnitude
5.5Very important
Tested on
AncestryDNA
Minor allele frequency
<1%

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

SNPedia records rs118203906 on the minus strand: (C;C), (C;G), (G;G). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Notes

From SNPedia

Notes

C;G

May have higher thrombophilia risk due to activated protein C resistance; see ClinVar & OMIM

Source and license

Adapted from rs118203906 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.