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- Table of Contents
Designing a Western blot for JAK3? The guide has the expected band size, antibodies backed by real blot images, the controls to run alongside, and protocols taken from published papers.
Open the JAK3 Western Blot GuideFacts about Tyrosine-protein kinase JAK3.
In the cytoplasm, plays a pivotal role in signal transduction through its association with type I receptors sharing the frequent subunit gamma like IL2R, IL4R, IL7R, IL9R, IL15R and IL21R. Following ligand binding to cell surface receptors, phosphorylates specific tyrosine residues on the cytoplasmic tails of this receptor, creating docking sites for STATs proteins.
| Human | |
|---|---|
| Gene Name: | JAK3 |
| Uniprot: | P52333 |
| Entrez: | 3718 |

| Belongs to: |
|---|
| protein kinase superfamily |

EC 2.7.10; Jak3; JAK3_HUMAN; JAK-3EC 2.7.10.2; JAKL; JAKLtyrosine-protein kinase JAK3; Janus kinase 3Leukocyte janus kinase; LJAK; L-JAKJanus kinase 3 (a protein tyrosine kinase, leukocyte)
Mass (kDA):
125.099 kDA

| Human | |
|---|---|
| Location: | 19p13.11 |
| Sequence: | 19; NC_000019.10 (17824782..17848071, complement) |
In NK cells and an NK-like cell line but not in resting T-cells or in other tissues. The S-form is more commonly seen in hematopoietic lines, whereas the B-form is detected in cells both of hematopoietic and epithelial origins.
Endomembrane system; Peripheral membrane protein. Cytoplasm.






PMID: 8022790 by Kawamura M., et al. Molecular cloning of L-JAK, a Janus family protein-tyrosine kinase expressed in natural killer cells and activated leukocytes.
PMID: 7559633 by Lai K.S., et al. A kinase-deficient splice variant of the human JAK3 is expressed in hematopoietic and epithelial cancer cells.
*More publications can be found for each product on its corresponding product page