{{Rsnum
|rsid=838552
|Gene=USP40
|Chromosome=2
|position=233513383
|Orientation=plus
|GMAF=0.2287
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
|Gene_s=USP40
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 5.3 | 38.1 | 56.6
| HCB | 1.5 | 16.1 | 82.5
| JPT | 0.9 | 9.7 | 89.4
| YRI | 21.8 | 47.6 | 30.6
| ASW | 14.0 | 42.1 | 43.9
| CHB | 1.5 | 16.1 | 82.5
| CHD | 0.9 | 23.9 | 75.2
| GIH | 3.0 | 24.8 | 72.3
| LWK | 14.5 | 49.1 | 36.4
| MEX | 0.0 | 19.0 | 81.0
| MKK | 18.1 | 51.6 | 30.3
| TSI | 3.9 | 39.2 | 56.9
| HapMapRevision=28
}}linked to late onset [[Parkinson's disease]] {{PMID|16917932}}

{{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}}