Anti-ZAP70 Purified
The ZAP70 (zeta-associated protein of 70 kDa) tyrosine kinase was identified as a tyrosine phosphoprotein that associates with TCR zeta subunit and undergoes tyrosine phosphorylation following TCR stimulation. ZAP70 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, ZAP70 gene mutations resulting in lower ZAP70 protein expression levels or expression of catalytically inactive ZAP70 proteins, have been identified. ZAP70 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), ZAP70 expression on B cell was shown to be correlated with disease progression and survival. ZAP70 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 zeta subunit on the activated TCR complex causes a colocalization with the Lck tyrosine kinase that phosphorylates ZAP70 on Tyr493 in the activation loop. ZAP70 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, PLCgamma1, Vav, Shc, Ras-GAP, and Abl. ZAP70-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.
Product Specifications
Certification
RUO
Immunogen
A KLH-coupled peptide corresponding to amino acids 282-307 of human ZAP70
Target Antigen
ZAP70
Clone
1E7.2
Applications
FC (QC tested), IP, WB, ICC
Concentration
1 mg/mL
Format
Purified
Buffer
Phosphate buffered saline (PBS), pH 7.4, 15 mM sodium azide
References & Citations
Storage Conditions
Store at 2-8°C. Do not freeze.
Specificity
Species
Human, Mouse
CAS Number
9007-83-4
Isotype
Mouse IgG1 kappa
Explore Other Products
Discover premium biology products from our extensive collection of 20M+ items
2210020M01Rik sgRNA CRISPR/Cas9 All-in-One Lentivector set (Mouse)
TSPYL4, CT (TSPYL4, KIAA0721, Testis-specific Y-encoded-like protein 4) (Azide free) (HRP)