rs398122990(A;G)

“royal disease” also known as hemophilia B or Christmas disease

Magnitude
8.0Very important
Repute
Not rated
On SNPedia
rs398122990(A;G)
Gene
F9

Other genotypes of rs398122990

  1. A;AGoodnormalTypical · 0.0
  2. G;GNot ratedRoyal Disease Hemophilia B SNPVery important · 8.0

All about rs398122990

Notes

From SNPedia

You carry a form of hemophilia known as the “royal disease,” transmitted from Queen Victoria (1819–1901) to European royal families. It is currently unknown if this "royal disease" rs398122990(G) SNP is extinct world-wide, but if you're seeing this in your Promethease report, you may be the proof that the variant is not extinct. Please let info@snpedia.com know that you saw this in your report.

Source and license

Adapted from rs398122990(A;G) 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.