{{Rsnum
|rsid=4812466
|Chromosome=20
|position=40810843
|Orientation=plus
|GMAF=0.3136
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(G;G)
|geno2=(G;T)
|geno3=(T;T)
}}{{ population diversity
| geno1=(G;G)
| geno2=(G;T)
| geno3=(T;T)
| CEU | 59.3 | 35.4 | 5.3
| HCB | 46.7 | 46.0 | 7.3
| JPT | 41.6 | 51.3 | 7.1
| YRI | 29.3 | 55.8 | 15.0
| ASW | 28.1 | 56.1 | 15.8
| CHB | 46.7 | 46.0 | 7.3
| CHD | 44.0 | 43.1 | 12.8
| GIH | 44.6 | 45.5 | 9.9
| LWK | 20.9 | 60.9 | 18.2
| MEX | 50.0 | 44.8 | 5.2
| MKK | 49.4 | 47.4 | 3.2
| TSI | 55.9 | 37.3 | 6.9
| HapMapRevision=28
}}{{PMID Auto GWAS
  |PMID=23319000
  |Trait=Metabolite levels (HVA-5-HIAA Factor score)
  |Title=Genome-wide association study of monoamine metabolite levels in human cerebrospinal fluid.
  |RiskAllele=T
  |Pval=6E-6
  |OR=.23
  |ORtxt=unit increase
  }}

{{on chip | Affy GenomeWide 6}}