{{Rsnum
|rsid=500498
|Chromosome=9
|position=133273232
|Orientation=plus
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
|Gene=ABO
|Gene_s=ABO
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 28.6 | 57.1 | 14.3
| HCB | 20.5 | 54.5 | 25.0
| JPT | 25.0 | 53.6 | 21.4
| YRI | 21.3 | 46.1 | 32.6
| ASW | 21.1 | 50.9 | 28.1
| CHB | 20.5 | 54.5 | 25.0
| CHD | 16.3 | 58.7 | 25.0
| GIH | 26.5 | 51.0 | 22.4
| LWK | 18.9 | 52.8 | 28.3
| MEX | 0.0 | 0.0 | 0.0
| MKK | 21.7 | 44.7 | 33.6
| TSI | 42.6 | 32.7 | 24.8
| HapMapRevision=28
}}This SNP is a variant in the [[ABO]] gene, and is therefore potentially useful in determining [[ABO blood group]], such as through the use of [[genosets]].

{{on chip | 23andMe v1}}
{{on chip | 23andMe v2}}
{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | Illumina Human 1M}}