{{Rsnum
|rsid=3094628
|Gene=HCG18
|Chromosome=6
|position=30317535
|Orientation=minus
|GMAF=0.03306
|Gene_s=HCG17,HCG18
|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 | 68.8 | 31.2 | 0.0
| HCB | 100.0 | 0.0 | 0.0
| JPT | 100.0 | 0.0 | 0.0
| YRI | 100.0 | 0.0 | 0.0
| ASW | 0.0 | 0.0 | 0.0
| CHB | 100.0 | 0.0 | 0.0
| 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|19143812|OA=1
}} HLA-DQB1 8.1 haplotype is associated with significantly lower risk for [[type-1 diabetes]]
*[[rs2157678]](T)
*[[rs3130380]](A)
*[[rs3094628]](C)
*[[rs3130352]](T)

{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | HumanOmni1Quad}}