{{Rsnum
|rsid=2236142
|Gene=CHEK2
|Chromosome=22
|position=28741956
|Orientation=plus
|GMAF=0.3939
|Gene_s=CHEK2,HSCB
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;G)
|geno3=(G;G)
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;G)
| geno3=(G;G)
| CEU | 53.2 | 40.3 | 6.5
| HCB | 8.9 | 60.0 | 31.1
| JPT | 13.3 | 42.2 | 44.4
| YRI | 51.6 | 40.3 | 8.1
| ASW | 0.0 | 0.0 | 0.0
| CHB | 8.9 | 60.0 | 31.1
| 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=22201027
|Title=Variant allele of CHEK2 is associated with a decreased risk of esophageal cancer lymph node metastasis in a Chinese population
}}

{{PMID|17132159|OA=1
}} Comprehensive analysis of the ATM, CHEK2 and ERBB2 genes in relation to breast tumour characteristics and survival: a population-based case-control and follow-up study.

{{on chip | 23andMe v1}}
{{on chip | 23andMe v2}}
{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | FTDNA}}