rs3218707
A SNP in the ATM gene on chromosome 11. Its most notable genotype is G;G: common in complete genomics
- Gene
- ATM
- Location
- Chr 11108,244,000 (GRCh38)
- Highest magnitude
- 0.0Typical
- Tested on
- 23andMe, AncestryDNA
- Minor allele frequency
- 1%
Genotypes
As shown in 23andMe and AncestryDNA files.
On SNPedia: (G;G). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.
Frequency
Share of each genotype in 4 HapMap populations.
- AverageG;G 98%
- European ancestry (Utah)G;G 100%
- Han Chinese (Beijing)G;G 100%
- Japanese (Tokyo)G;G 100%
- Yoruba (Nigeria)G;G 92%
Related
Conditions, medicines and genes
Other ATM SNPs
- rs147557621G;TBreast cancer associated mutationVery important
- rs200976093C;TBreast cancer associated mutationVery important
- rs376170600C;GBreast cancer associated mutationVery important
- rs376603775C;TBreast cancer associated mutationVery important
- rs529296539C;GBreast cancer associated mutationVery important
- rs587776551A;GBreast cancer associated mutationVery important
- rs587778080C;TBreast cancer associated mutationVery important
- rs587779813A;GBreast cancer associated mutationVery important
Notes
From SNPedia
Notes
This SNP, a variant in the ATM gene, is 1 of 25 SNPs reported to represent independently minor, but cumulatively significant, increased risk for breast cancer. For details of all 25 SNPs in this group, along with the two methods used to calculate overall risk estimates for breast cancer, refer to the SNPedia breast cancer entry. For this particular SNP, the risk (minor) allele is (C).
Source and license
Adapted from rs3218707 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.