{{Rsnum
|rsid=2230724
|Gene=JAK2
|Chromosome=9
|position=5081780
|Orientation=plus
|GMAF=0.4105
|Gene_s=JAK2
|Assembly=GRCh37.p5
|GenomeBuild=37.3
|dbSNPBuild=137
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
}}
{{ population diversity
| geno1=(A;A)
| geno2=(A;G)
| geno3=(G;G)
| CEU | 23.0 | 52.2 | 24.8
| HCB | 15.8 | 45.9 | 38.3
| JPT | 14.3 | 51.8 | 33.9
| YRI | 91.2 | 8.2 | 0.7
| ASW | 64.9 | 26.3 | 8.8
| CHB | 15.8 | 45.9 | 38.3
| CHD | 13.9 | 50.9 | 35.2
| GIH | 22.0 | 55.0 | 23.0
| LWK | 84.5 | 14.5 | 0.9
| MEX | 38.6 | 50.9 | 10.5
| MKK | 64.1 | 32.7 | 3.2
| TSI | 29.7 | 44.6 | 25.7
| HapMapRevision=28
}}{{PMID Auto
|PMID=22168550
|Title=Association of Janus kinase 2 (JAK2) polymorphisms with acute leukemia susceptibility
}}

{{PMID Auto
|PMID=23717640
|Title=Janus Kinase 2 Polymorphisms Are Associated with Risk in Patients with Gastric Cancer in a Chinese Population
|OA=1
}}

{{PMID Auto
|PMID=23193966
|Title=Contribution of JAK2 and STAT3 variants to the genetic susceptibility of recurrent spontaneous miscarriage in a Tunisian population.
}}

{{PMID Auto
|PMID=23670291
|Title=Search for mutations in signaling pathways in head and neck squamous cell carcinoma.
}}

{{PMID Auto
|PMID=25127987
|Title=Polymorphisms in immune mediators associate with risk of cervical cancer
}}
{{on chip | FTDNA2}}
{{on chip | HumanOmni1Quad}}
{{on chip | Illumina Human 1M}}