Markers / Gene
CYP2R1
One position in this gene is readable from a home DNA test.
Turning vitamin D into the usable form
rs10741657 · chr11:14,914,878 · A/G · evidence: established
CYP2R1 is the liver enzyme that activates vitamin D after your skin makes it. It is the second of the two strongest common influences on your measured level.
| If you carry | What it means |
|---|---|
| No copies | You have the higher-level version on both copies |
| One copy | You carry one lower-level copy |
| Two copies | You carry two lower-level copies |
Where this gene fits
If you have taken a home DNA test, these positions are already in your file.
Read my file