Use UniProt P52333 as the stable identity anchor, then attach disease evidence before program review.
CHEMBL3038491 Target Snapshot
JAK3/JAK1 · PROTEIN COMPLEX · Homo sapiens
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As of 2026-09-13Protein identity stays anchored to UniProt P52333. Use UniProt P52333 as the stable identity anchor, then attach disease evidence before program review.
Tyrosine-protein kinase JAK3
Review this target as JAK3/JAK1, mapped to UniProt P52333. ChEMBL maps the protein component as Tyrosine-protein kinase JAK3. Sequence length is 1124 aa.
Protein source · UniProt accession via ChEMBL component mappingCross-source identity
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This review treats JAK3/JAK1 as ChEMBL target CHEMBL3038491, mapped to UniProt P52333. Disease framing currently uses the Open Targets-ready proxy contract.
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Open Review-ready CardBasic Information
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| Preferred Name | JAK3/JAK1 |
| Target Type | PROTEIN COMPLEX |
| Organism | Homo sapiens |
| UniProt | P52333 |
Next Actions
UniProt Target Context
Reviewable protein naming and mapping context for this target snapshot.
| Protein Label | Tyrosine-protein kinase JAK3 |
| UniProt Accession | P52333 |
| Component Type | Protein |
| Sequence Length | 1124 aa |
Tyrosine-protein kinase JAK3
How to read this target
Review this target as JAK3/JAK1, mapped to UniProt P52333. ChEMBL maps the protein component as Tyrosine-protein kinase JAK3. Sequence length is 1124 aa.
Clinical Phase Distribution
Activity Type Distribution
Top Inhibitors (by pChEMBL)
| ChEMBL ID | pChEMBL | Type | Value (nM) | Phase |
|---|---|---|---|---|
| CHEMBL3622821 | 8.7 | IC50 | 2.0 | Approved |
| CHEMBL4588333 | 8.59 | IC50 | 2.6 | Preclinical |
| CHEMBL2105759 | 8.3 | IC50 | 5.0 | Approved |
| CHEMBL221959 | 8.17 | IC50 | 6.7 | Approved |
| CHEMBL4439418 | 8.15 | IC50 | 7.1 | Preclinical |
| CHEMBL4635876 | 8.1 | IC50 | 7.943 | Preclinical |
| CHEMBL5209379 | 8.05 | IC50 | 9.0 | Preclinical |
| CHEMBL5170161 | 8.05 | IC50 | 9.0 | Preclinical |
| CHEMBL4297507 | 8.05 | IC50 | 9.0 | Clinical |
| CHEMBL4437638 | 8.03 | IC50 | 9.4 | Preclinical |
pChEMBL Value Distribution
Approved Drugs
Assay Landscape
Binding — 76 assays, 235 compounds
| BAO Format | Assays | Compounds | Avg pChEMBL |
|---|---|---|---|
| cell-based format | 53 | 132 | 7.0 |
| protein complex format | 12 | 67 | 6.8 |
| tissue-based format | 9 | 35 | 6.0 |
| assay format | 2 | 1 | 5.9 |
ADME — 8 assays, 5 compounds
| BAO Format | Assays | Compounds | Avg pChEMBL |
|---|---|---|---|
| cell-based format | 8 | 5 | 5.7 |