> Trialight public data. Index of pages: https://trialight.com/llms.txt
> Web page: https://trialight.com/data/target/jak2-6d06f09e-903b-5a13-9d7a-79efa991190f
> Record changed: 2026-10-13

# JAK2

ENSG00000096968

Target class

Kinase

Chromosome

9

Approved drugs

14

Clinical candidates (approved and in development)

29

## Clinical evidence

**Approved drugs**

14

**Clinical candidates (approved and in development)**

29

## Druggability

**Chemical probe available**

Yes

## Names

**Other names**

- JTK10

**Target name**

JAK2

**Gene name**

Janus kinase 2

**Gene symbol**

JAK2

**Protein name**

Tyrosine-protein kinase JAK2 (EC 2.7.10.2) (Janus kinase 2) (JAK-2)

## Classification

**Gene biotype**

Protein coding

**Gene family**

SH2 domain containing|FERM domain containing|Jak family tyrosine kinases

**Target class**

Kinase

**Target type**

Human gene

## Expression and localisation

**Tissues expressed in**

54

**Protein localisation evidence grade**

Supported

**Highest tissue expression**

68.89

**Tissue specificity (Gini)**

0.434

**Tissue specificity (tau)**

0.846

## Pathways and interactions

**KEGG gene identifiers**

- hsa:3717

**Protein interaction confidence**

0.873976

**Protein interaction partners**

207

### Reactome pathways (39)

- R-HSA-1059683
- R-HSA-110056
- R-HSA-112411
- R-HSA-1170546
- R-HSA-1433557
- R-HSA-2586552
- R-HSA-3214858
- R-HSA-512988
- R-HSA-5673000
- R-HSA-5673001
- R-HSA-6785807
- R-HSA-6788467
- R-HSA-6802946
- R-HSA-6802952
- R-HSA-6802955
- R-HSA-69231
- R-HSA-877300
- R-HSA-877312
- R-HSA-8854691
- R-HSA-8984722
- R-HSA-9006335
- R-HSA-9020591
- R-HSA-9020933
- R-HSA-9020956
- R-HSA-9027276

And 14 more, listed on the interactive page.

## Genomic location

**End position**

5129948

**Start position**

4984390

**Chromosome**

9

**Strand**

Forward

## Identifiers

**Ensembl gene ID**

ENSG00000096968

**HGNC ID**

HGNC:6192

Source: [www.genenames.org](https://www.genenames.org/data/gene-symbol-report/#!/hgnc%5Fid/HGNC:6192)

**NCBI Gene ID**

3717

**UniProt ID**

O60674

## Cellular location

- Endomembrane system
- Peripheral membrane protein . Cytoplasm . Nucleus .
- Focal adhesion sites
- Nucleoplasm

### Publication evidence

- PubMed 19783980  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/19783980/)

## Tissue expression

**Tissue specificity (tau)**

0.846351

**Expression inequality (Gini)**

0.434397

### Highest expression

Expression in transcripts per million

**Artery - Tibial**

68.89

**Artery - Aorta**

46.89

**Artery - Coronary**

31.65

**Adipose - Subcutaneous**

20.79

**Nerve - Tibial**

20

### All tissues (54)

Expression in transcripts per million

- Artery - Tibial68.89
- Artery - Aorta46.89
- Artery - Coronary31.65
- Adipose - Subcutaneous20.79
- Nerve - Tibial20
- Lung18.99
- Skin - Sun Exposed (Lower leg)18.02
- Vagina17.78
- Cervix - Ectocervix17.51
- Uterus17.36
- Ovary17.28
- Cells - EBV-transformed lymphocytes17.13
- Skin - Not Sun Exposed (Suprapubic)16.38
- Cervix - Endocervix16.17
- Spleen15.6
- Breast - Mammary Tissue15.46
- Adipose - Visceral (Omentum)14.8
- Fallopian Tube14.62
- Bladder13.17
- Esophagus - Muscularis12.66
- Esophagus - Gastroesophageal Junction12.5
- Colon - Sigmoid11.34
- Small Intestine - Terminal Ileum11.33
- Testis11.02
- Esophagus - Mucosa9.67

And 29 more, listed on the interactive page.

## Biological functions

### Biological processes (34)

- GO:0007155  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0007155)
- GO:0007259  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0007259)
- GO:0007498  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0007498)
- GO:0010572  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0010572)
- GO:0010811  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0010811)
- GO:0019221  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0019221)
- GO:0033209  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0033209)
- GO:0034612  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0034612)
- GO:0035556  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0035556)
- GO:0035722  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0035722)
- GO:0038043  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0038043)
- GO:0038065  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0038065)
- GO:0038155  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0038155)
- GO:0038156  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0038156)
- GO:0038157  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0038157)
- GO:0038162  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0038162)
- GO:0038163  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0038163)
- GO:0038165  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0038165)
- GO:0043687  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0043687)
- GO:0046677  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0046677)
- GO:0048861  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0048861)
- GO:0050727  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0050727)
- GO:0051897  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0051897)
- GO:0060333  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0060333)
- GO:0060391  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0060391)

And 9 more, listed on the interactive page.

### Cellular components (9)

- GO:0000785  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0000785)
- GO:0005634  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005634)
- GO:0005654  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005654)
- GO:0005737  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005737)
- GO:0005829  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005829)
- GO:0009898  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0009898)
- GO:0019897  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0019897)
- GO:0031234  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0031234)
- GO:0031904  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0031904)

### Molecular functions (9)

- GO:0004713  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0004713)
- GO:0004715  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0004715)
- GO:0005102  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005102)
- GO:0005515  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005515)
- GO:0019901  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0019901)
- GO:0020037  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0020037)
- GO:0035401  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0035401)
- GO:0042169  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0042169)
- GO:0042802  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0042802)

## On-target safety

- heart disease  
### Studies

  - preclinical: Important for the heart and vasculature based on findings in genetically modified or kinase-inhibitor-treated mice. Role of kinase in heart/vasculature: JAK2 and STAT3 protective in many pathological settings  
### Biological samples

  - cardiovascular system  
PubMed 21283106  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/21283106/)

## Off-target safety

- regulation of catalytic activity  
### Studies

  - biochemical: NVS\_ENZ\_hJak2, is one of one assay component(s) measured or calculated from the NVS\_ENZ\_hJak2 assay. It is designed to make measurements of enzyme activity, a form of enzyme reporter, as detected with fluorescence intensity signals by Fluorescence and electrophoretic mobility shift technology.  
### Biological samples

  - cell-free  
Evidence source  
Source: [www.epa.gov](https://www.epa.gov/chemical-research/exploring-toxcast-data-downloadable-data)

## Related records

### Trials (1,095)

- "Baricitinib for Treating Hospital-acquired Pneumonia in Critically Ill Patients With a Proinflammatory Phenotype.
- 3T Therapy in the Treatment of MDA5-positive Dermatomyositis
- A 12 Day Study To Evaluate A Topical Drug To Treat Plaque Psoriasis
- A 16-week Trial to Investigate the Efficacy and Safety of Delgocitinib Cream 20 mg/g in Adult Participants With Mild to Severe Palmoplantar Pustulosis
- A 2-Year Phase 3 Study Of CP-690,550 In Patients With Active Rheumatoid Arthritis On Background Methotrexate
- A 24 Week Trial to Compare the Efficacy and Safety of Delgocitinib Cream 20 mg/g Twice-daily With Alitretinoin Capsules Once-daily in Adult Participants With Severe Chronic Hand Eczema
- A 52-Week Trial to Investigate the Efficacy and Safety of Delgocitinib Cream in Adult Participants With Lichen Sclerosus
- A 6-Month Study Of CP-690,550 Versus Tacrolimus In Kidney Transplant Patients
- A Clinical Study of Ruxolitinib in Patients With Primary Myelofibrosis (PM), Post-polycythemia Vera (PV) Myelofibrosis, or Post-essential Thrombocythemia (ET) Myelofibrosis
- A Clinical Study to Test the Effects of Ruxolitinib And Thalidomide Combination for Patients With Myelofibrosis
- A Clinical Trial of Bomedemstat in Participants With Polycythemia Vera (MK-3543-025)
- A Clinical Trial of Flonoltinib Maleate for Intermediate or High-Risk Myelofibrosis
- A Clinical Trial of TQH3906 Capsules in the Treatment of Active Psoriatic Arthritis
- A Dose Ranging Study of the Effect of Ruxolitinib Phosphate Cream When Applied to Participants With Plaque Psoriasis
- A Dose-escalation Study of the Safety and Tolerability of Orally Administered TG101348 in Patients With Myelofibrosis
- A Drug Drug Interaction (DDI) Study of Baricitinib (LY3009104) and Digoxin in Healthy Participants
- A Drug Interaction Study to Evaluate the Pharmacokinetics of ASP015K and Metformin
- A Drug Interaction Study to Evaluate the Pharmacokinetics of ASP015K and Methotrexate in Patients With Rheumatoid Arthritis
- A Long Term Study To Evaluate The Safety And Tolerability Of CP-690,550 For Patients With Moderate To Severe Chronic Plaque Psoriasis
- A Long Term Study To Evaluate The Safety, Tolerability And Efficacy Of CP-690,550 In Patients With Moderate To Severe Plaque Psoriasis And/Or Psoriatic Arthritis

### Drugs (32)

- AC-430 Tyrosine-protein kinase JAK2 inhibitor
- AT-9283 Tyrosine-protein kinase JAK2 inhibitor
- AZD-1480 Tyrosine-protein kinase JAK2 inhibitor
- [Baricitinib](https://trialight.com/data/asset/baricitinib-dde0cdc5-8f75-41b1-bc92-b187471c63df.md) Tyrosine-protein kinase JAK2 inhibitor
- BMS-911543 Tyrosine-protein kinase JAK2 inhibitor
- CT-1578 Tyrosine-protein kinase JAK2 inhibitor
- Delgocitinib Janus Kinase (JAK) inhibitor
- Deuruxolitinib phosphate Tyrosine-protein kinase JAK2 inhibitor
- Fedratinib Tyrosine-protein kinase JAK2 inhibitor
- Fedratinib hydrochloride Tyrosine-protein kinase JAK2 inhibitor
- Filgotinib Tyrosine-protein kinase JAK2 inhibitor
- Filgotinib maleate Tyrosine-protein kinase JAK2 inhibitor
- Gandotinib Tyrosine-protein kinase JAK2 inhibitor
- Gusacitinib Janus Kinase (JAK) inhibitor
- Izencitinib Janus Kinase (JAK) inhibitor
- Lestaurtinib Tyrosine-protein kinase JAK2 inhibitor
- LS-104 Tyrosine-protein kinase JAK2 inhibitor
- [Momelotinib](https://trialight.com/data/asset/momelotinib-d384d174-93c9-4c16-bc43-4bc528bdef0d.md) Tyrosine-protein kinase JAK2 inhibitor
- Momelotinib dihydrochloride monohydrate Tyrosine-protein kinase JAK2 inhibitor
- Nezulcitinib Janus Kinase (JAK) inhibitor

---

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