{{Rsnum
|rsid=1330645
|Chromosome=5
|position=26070518
|Orientation=minus
|GMAF=0.332
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 25.4 | 46.0 | 28.6
| HCB | 2.2 | 13.3 | 84.4
| JPT | 2.3 | 11.6 | 86.0
| YRI | 1.6 | 27.9 | 70.5
| ASW | 0.0 | 0.0 | 0.0
| CHB | 2.2 | 13.3 | 84.4
| 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
}}{{PMID Auto
|PMID=22729394
|Title=A non-synonymous polymorphism in IRS1 modifies risk of developing breast and ovarian cancers in BRCA1 and ovarian cancer in BRCA2 mutation carriers
|OA=1
}}