This JAK3 Sandwich ELISA Kit is an in-vitro enzyme-linked immunosorbent assay for the measurement of samples in rat tissue homogenates, cell lysates or other biological fluids..
Applications
ELISA
Reactivity
Rat
Sensitivity
6.2pg/mL
Detection Limit
15.6-1000pg/mL
Note
STRICTLY FOR FURTHER SCIENTIFIC RESEARCH USE ONLY (RUO). MUST NOT TO BE USED IN DIAGNOSTIC OR THERAPEUTIC APPLICATIONS.
Product Properties
Storage Instruction
Store the unopened kit in the fridge at 2-8°C for up to 6 months. Once opened store individual kit contents according to components table provided with the kit.
tissue homogenates, cell lysates or other biological fluids.
Additional Info
Tissue Specificity
In contrast with the ubiquitous expression of the other JAKs, JAK3 is predominantly expressed in hematopoietic tissues.
Post Translational Modifications
Autophosphorylated, leading to regulate its activity. IL2 promotes phosphorylation on tyrosine residues, including autophosphorylation on Tyr-781. Dephosphorylation of Tyr-976 and Tyr-977 by PTPN2 negatively regulates cytokine-mediated signaling.
Function
Non-receptor tyrosine kinase involved in various processes such as cell growth, development, or differentiation. Mediates essential signaling events in both innate and adaptive immunity and plays a crucial role in hematopoiesis during T-cells development. In the cytoplasm, plays a pivotal role in signal transduction via its association with type I receptors sharing the common subunit gamma such as IL2R, IL4R, IL7R, IL9R, IL15R and IL21R. Following ligand binding to cell surface receptors, phosphorylates specific tyrosine residues on the cytoplasmic tails of the receptor, creating docking sites for STATs proteins. Subsequently, phosphorylates the STATs proteins once they are recruited to the receptor. Phosphorylated STATs then form homodimer or heterodimers and translocate to the nucleus to activate gene transcription. For example, upon IL2R activation by IL2, JAK1 and JAK3 molecules bind to IL2R beta (IL2RB) and gamma chain (IL2RG) subunits inducing the tyrosine phosphorylation of both receptor subunits on their cytoplasmic domain. Then, STAT5A and STAT5B are recruited, phosphorylated and activated by JAK1 and JAK3. Once activated, dimerized STAT5 translocates to the nucleus and promotes the transcription of specific target genes in a cytokine-specific fashion.
