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CyFlow™ ZAP-70 Purified
| Application: | Flow cytometry, Immunocytochemistry, Western blot |
| Clonality: | monoclonal |
| Target Species: | Human |
| Regulatory Status: | RUO |
| Source Species: | Mouse |
| Format/Fluorochrome: | Purified |
| Isotype: | IgG1 |
| Field of Interest: | Phosphorylation |
| Antigen: | ZAP-70 |
| Clone: | ZAP-03 |
| Order number: | AY657586 |
For Research Use Only
Not for use in diagnostic or therapeutic procedures.
Concentration Unit mg/mL Concentration 1 Quantity 0.1 mg Volume 0.1 mL... more
Product information "CyFlow™ ZAP-70 Purified"
| Concentration Unit | mg/mL |
| Concentration | 1 |
| Quantity | 0.1 mg |
| Volume | 0.1 mL |
| Immunogen | Bacterially expressed fusion protein representing C-terminal part (160 amino acids) of human ZAP-70 with histidine tag |
| Background Information | ZAP-70; ζ-associated protein of 70 kDa tyrosine kinase, was identified as a tyrosine phosphoprotein that associates with TCR ζ subunit and undergoes tyrosine phosphorylation following TCR stimulation. ZAP-70 is a Syk family tyrosine kinase primarily expressed in T and NK cells that plays an essential role in signaling through the TCR. TCR-mediated activation of T cells is crucial to the immune response. In humans, ZAP-70 gene mutations resulting in lower ZAP-70 protein expression levels or expression of catalytically inactive ZAP-70 proteins, have been identified. ZAP-70 deficiency results in the absence of mature CD8+ T cells and the prevention of TCR-mediated activation of CD4+ T cells, and it can lead to severe combined immunodeficiency. In patients with chronic lymphocytic leukemia (B-CLL), ZAP-70 expression on B cell was shown to be correlated with disease progression and survival. ZAP-70 contains two N-terminal SH2 domains (Src homology domain 2) and a C-terminal kinase domain. During T cell activation, the binding of ZAP-70 SH2 domains to the phosphorylated ζ subunit on the activated TCR complex causes a colocalization with the Lck tyrosine kinase that phosphorylates ZAP-70 on Tyr493 in the activation loop. ZAP-70 autophosphorylates multiple tyrosines in the region between the SH2 domains and the kinase domain, including the binding sites for additional SH2-containing signaling proteins such as SLP76, LAT, Lck, PLCγ1, Vav, Shc, Ras-GAP, and Abl. ZAP-70-mediated activation of these downstream effectors leads to the release of intracellular calcium stores, and the transcription of interleukin-2 and other genes important for an immune response. |
| Storage Buffer | The reagent is provided in phosphate buffered saline (PBS) solution, pH ≈7.4, containing 0.09% (w/v) sodium azide. |
| Storage | Avoid prolonged exposure to light. Store in the dark at 2-8°C. Do not freeze. |
| Stability | Do not use after expiration date stamped on vial label. |
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