Markers / Gene
G6PD
One position in this gene is readable from a home DNA test.
G6PD deficiency, the A- variant
rs1050828 · chrX:153,764,217 · C/T · evidence: established
G6PD deficiency is the most common enzyme deficiency in the world. It is usually silent until something triggers it: certain antimalarials, some antibiotics, the gout drug rasburicase, and fava beans can all cause red blood cells to break down. The gene is on the X chromosome, so men have only one copy.
| If you carry | What it means |
|---|---|
| No copies | You do not carry the A- variant |
| One copy | One copy, which means different things by sex |
| Two copies | Two copies, or hemizygous |
Where this gene fits
If you have taken a home DNA test, these positions are already in your file.
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