{{Rsnum
|rsid=2274471
|Gene=JAK2
|Chromosome=9
|position=4985879
|Orientation=minus
|GMAF=0.202
|Gene_s=JAK2
|Assembly=GRCh37.p5
|GenomeBuild=37.3
|dbSNPBuild=137
|geno1=(C;C)
|geno2=(C;T)
|geno3=(T;T)
}}
{{ population diversity
| geno1=(C;C)
| geno2=(C;T)
| geno3=(T;T)
| CEU | 3.6 | 27.7 | 68.8
| HCB | 0.0 | 29.2 | 70.8
| JPT | 4.4 | 31.0 | 64.6
| YRI | 0.7 | 20.4 | 78.9
| ASW | 1.8 | 29.8 | 68.4
| CHB | 0.0 | 29.2 | 70.8
| CHD | 1.8 | 23.9 | 74.3
| GIH | 1.0 | 27.0 | 72.0
| LWK | 0.0 | 24.5 | 75.5
| MEX | 5.2 | 34.5 | 60.3
| MKK | 1.9 | 30.1 | 67.9
| TSI | 5.9 | 46.1 | 48.0
| HapMapRevision=28
}}{{PMID Auto GWAS
  |PMID=23266558
  |Trait=Crohn's disease
  |Title=A Genome-Wide Association Study Identifies 2 Susceptibility Loci for Crohn's Disease in a Japanese Population.
  |RiskAllele=A
  |Pval=5E-6
  |OR=1.27
  |ORtxt=[1.15-1.41]
  }}

{{PMID Auto
|PMID=18239666
|Title=Association of common JAK2 variants with body fat, insulin sensitivity and lipid profile.
|OA=1
}}

{{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}}