{{Rsnum
|rsid=2609997
|Gene=PENK
|Chromosome=8
|position=56447926
|Orientation=minus
|GMAF=0.3329
|Gene_s=PENK
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
}}{{ population diversity
| geno1=(A;A)
| geno2=(A;G)
| geno3=(G;G)
| CEU | 31.9 | 50.4 | 17.7
| HCB | 46.0 | 40.1 | 13.9
| JPT | 38.9 | 52.2 | 8.8
| YRI | 95.9 | 4.1 | 0.0
| ASW | 71.9 | 24.6 | 3.5
| CHB | 46.0 | 40.1 | 13.9
| CHD | 45.0 | 46.8 | 8.3
| GIH | 26.0 | 51.0 | 23.0
| LWK | 80.7 | 16.5 | 2.8
| MEX | 43.1 | 48.3 | 8.6
| MKK | 53.5 | 41.9 | 4.5
| TSI | 30.4 | 42.2 | 27.5
| HapMapRevision=28
}}{{PMID Auto
|PMID=22745721
|Title=Cannabis-Dependence Risk Relates to Synergism between Neuroticism and Proenkephalin SNPs Associated with Amygdala Gene Expression: Case-Control Study
|OA=1
}}

{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | FTDNA2}}
{{on chip | HumanOmni1Quad}}
{{on chip | Illumina Human 1M}}