{{Rsnum
|rsid=8192488
|Gene=COMT
|Chromosome=22
|position=19963714
|Orientation=plus
|GMAF=0.02204
|Gene_s=COMT,MIR4761
|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 | 0.0 | 0.0 | 0.0
| HCB | 0.0 | 0.0 | 0.0
| JPT | 0.0 | 0.0 | 0.0
| YRI | 85.2 | 14.8 | 0.0
| ASW | 86.0 | 10.5 | 3.5
| CHB | 0.0 | 0.0 | 0.0
| CHD | 0.0 | 0.0 | 0.0
| GIH | 0.0 | 0.0 | 0.0
| LWK | 75.9 | 21.3 | 2.8
| MEX | 0.0 | 0.0 | 0.0
| MKK | 72.8 | 24.5 | 2.6
| TSI | 0.0 | 0.0 | 0.0
| HapMapRevision=28
}}{{PMID Auto
|PMID=19365560
|Title=Low enzymatic activity haplotypes of the human catechol-O-methyltransferase gene: enrichment for marker SNPs
|OA=1
}}

{{PMID|16816940}} Direct molecular haplotyping of multiple polymorphisms within exon 4 of the human catechol-O-methyltransferase gene by liquid chromatography-electrospray ionization time-of-flight mass spectrometry.

{{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}}