{{Rsnum
|rsid=3116496
|Gene=CD28
|Chromosome=2
|position=203729789
|Orientation=plus
|GMAF=0.129
|Gene_s=CD28
|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 | 4.4 | 24.8 | 70.8
| HCB | 0.7 | 17.5 | 81.8
| JPT | 0.0 | 10.6 | 89.4
| YRI | 0.0 | 5.4 | 94.6
| ASW | 0.0 | 12.3 | 87.7
| CHB | 0.7 | 17.5 | 81.8
| CHD | 0.9 | 13.8 | 85.3
| GIH | 0.0 | 11.9 | 88.1
| LWK | 0.0 | 4.5 | 95.5
| MEX | 1.7 | 22.4 | 75.9
| MKK | 1.3 | 19.9 | 78.8
| TSI | 5.9 | 35.3 | 58.8
| HapMapRevision=28
}}{{PMID Auto
|PMID=23133541
|Title=Investigation of CD28 gene polymorphisms in patients with sporadic breast cancer in a chinese han population in northeast china
|OA=1
}}

{{PMID Auto
|PMID=24368148
|Title=Association between IVS3 +17T/C CD28 gene polymorphism and the acute kidney allograft rejection
}}

{{PMID Auto
|PMID=19672595
|Title=Polymorphisms in the CD28/CTLA4/ICOS genes: role in malignant melanoma susceptibility and prognosis?
|OA=1
}}

{{PMID Auto
|PMID=21669243
|Title=CTLA-4, CD28, and ICOS gene polymorphism associations with non-small-cell lung cancer.
}}

{{PMID Auto
|PMID=24927673
|Title=Quantitative assessment of the associations between CD28 T &gt; C polymorphism (rs3116496) and cancer risk
}}
{{on chip | 23andMe v1}}
{{on chip | 23andMe v2}}
{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | FTDNA2}}
{{on chip | HumanOmni1Quad}}
{{on chip | Illumina Human 1M}}