i5005436

A SNP in the CYP21A2 gene on chromosome 6. Its most notable genotype is C;T: miscalled by 23andMe, but should indicate being a carrier of allele for congenital adrenal hyperplasia

Gene
CYP21A2
Location
Chr 632,008,312 (GRCh38)
Highest magnitude
3.0Important
Tested on
23andMe

Genotypes

As shown in 23andMe and AncestryDNA files.

On SNPedia: (C;C), (C;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

Congenital adrenal hyperplasia rs7769409

C;T

As with rs7755898(C;T), for 23andMe users this commonly occurs as the result of a genotyping error in that testing platform. This can be seen in the opensnp data. If you were tested on another platform this may be real and further testing is perhaps warranted. See discussion at Congenital adrenal hyperplasia

Source and license

Adapted from i5005436 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.