{{Rsnum
|rsid=1801673
|Gene=ATM
|Chromosome=11
|position=108304736
|Orientation=plus
|ReferenceAllele=A
|MissenseAllele=T
|GMAF=0.002755
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(A;A)
|geno2=(A;T)
|geno3=(T;T)
|Gene_s=ATM
}}{{ population diversity
| geno1=(A;A)
| geno2=(A;T)
| geno3=(T;T)
| CEU | 98.5 | 1.5 | 0.0
| HCB | 100.0 | 0.0 | 0.0
| JPT | 100.0 | 0.0 | 0.0
| YRI | 100.0 | 0.0 | 0.0
| ASW | 0.0 | 0.0 | 0.0
| CHB | 100.0 | 0.0 | 0.0
| CHD | 0.0 | 0.0 | 0.0
| GIH | 0.0 | 0.0 | 0.0
| LWK | 0.0 | 0.0 | 0.0
| MEX | 0.0 | 0.0 | 0.0
| MKK | 0.0 | 0.0 | 0.0
| TSI | 0.0 | 0.0 | 0.0
| HapMapRevision=28
}}

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]]. {{PMID|17341484}}

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 (T).

{{PMID Auto
|PMID=18701470
|Title=Variants in the ATM gene associated with a reduced risk of contralateral breast cancer.
|OA=1
}}

{{PMID Auto
|PMID=19348699
|Title=Variants in the ATM gene and breast cancer susceptibility.
|OA=1
}}

{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}