{{Rsnum
|rsid=231806
|Chromosome=2
|position=203844626
|Orientation=plus
|GMAF=0.3577
|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 | 20.0 | 53.8 | 26.2
| HCB | 6.7 | 28.9 | 64.4
| JPT | 9.1 | 43.2 | 47.7
| YRI | 14.5 | 41.9 | 43.5
| ASW | 0.0 | 0.0 | 0.0
| CHB | 6.7 | 28.9 | 64.4
| 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=19175525
|Title=CTLA4 and generalized vitiligo: two genetic association studies and a meta-analysis of published data
|OA=1
}}{{PMID|17280620|OA=1
}} CT60 genotype does not affect CTLA-4 isoform expression despite association to T1D and AITD in northern Sweden.

{{PMID|19735686}} CTLA-4 promoter polymorphisms are associated with latent autoimmune diabetes in adults.

{{PMID|19956106|OA=1
}} Analysis of 19 genes for association with type I diabetes in the Type I Diabetes Genetics Consortium families.