{{Rsnum
|rsid=4713354
|Chromosome=6
|Orientation=plus
|geno1=(A;A)
|geno2=(A;C)
|geno3=(C;C)
|Gene=MDC1
|position=30717643
|Gene_s=MDC1
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
}}{{ population diversity
| geno1=(A;A)
| geno2=(A;C)
| geno3=(C;C)
| CEU | 86.7 | 13.3 | 0.0
| HCB | 67.6 | 31.6 | 0.7
| JPT | 53.1 | 38.9 | 8.0
| YRI | 18.4 | 55.1 | 26.5
| ASW | 24.6 | 61.4 | 14.0
| CHB | 67.6 | 31.6 | 0.7
| CHD | 78.0 | 19.3 | 2.8
| GIH | 75.2 | 19.8 | 5.0
| LWK | 39.1 | 47.3 | 13.6
| MEX | 73.7 | 24.6 | 1.8
| MKK | 45.5 | 43.6 | 10.9
| TSI | 76.5 | 20.6 | 2.9
| HapMapRevision=28
}}{{PMID Auto
|PMID=25198518
|Title=A Newfound Association between MDC1 Functional Polymorphism and Lung Cancer Risk in Chinese
}}

{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | FTDNA2}}
{{on chip | HumanOmni1Quad}}
{{on chip | Illumina Human 1M}}