{{Rsnum
|rsid=56156157
|Gene=CD28
|Chromosome=2
|position=203706326
|Orientation=plus
|GMAF=0.01194
|Gene_s=CD28
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(-;-)
|geno2=(-;C)
|geno3=(C;C)
}}{{PMID Auto
|PMID=21544637
|Title=CD28 proximal promoter polymorphisms in systemic lupus erythematosus susceptibility
}}