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Zap-70 Monoclonal Antibody (1E7.2), eBioscience™, Invitrogen™
Description
The 1E7.2 antibody reacts with human and mouse ZAP-70, the TCRζ-associated protein-70. ZAP-70 is a cytosolic protein tyrosine kinase (PTK) and a member of the Syk family of proteins. It is expressed in T and NK cells and is required for TCR signaling and development. ZAP-70 interacts with the TCR complex by binding to tyrosine-phosphorylated immunoreceptor tyrosine-based activation motifs (ITAMs) present in the invariant subunits of the TCR complex. Following activation, ZAP-70 is phosphorylated on several tyrosine residues by two mechanisms; an autophosphorylation and a transphosphorylation by the Src family tyrosine kinase Lck1-3. Tyrosine phosphorylation of ZAP-70 correlates to its increased kinase activity and triggers downstream signaling events. Mutations in ZAP-70 have been shown to result in a form of Severe Combined Immunodeficiency Syndrome (SCID) in humans. 1E7.2 was generated against a KLH-peptide sequence corresponding to the human ZAP-70 amino acid residues 282-307. While ZAP-70 is normally expressed in T and NK cells, several recent studies have also shown high correlation of ZAP-70 positive expression with mutated IgVH expression in B-chronic lymphocytic leukemia (CCL). In conclusion, the expression of ZAP-70, which can be measured by intracellular flow cytometry, may serve as a prognostic marker for B-CLL.
Specifications
Specifications
| Antigen | Zap-70 |
| Applications | Flow Cytometry, Immunocytochemistry, Immunofluorescence, Immunoprecipitation, Western Blot |
| Classification | Monoclonal |
| Clone | 1E7.2 |
| Concentration | 0.5 mg/mL |
| Conjugate | Unconjugated |
| Formulation | PBS with 0.09% sodium azide; pH 7.2 |
| Gene | ZAP70 |
| Gene Accession No. | P43403, P43404 |
| Gene Alias | 70 kDa zeta-associated protein; 70 kDa zeta-chain associated protein; ADMIO2; EC 2.7.10.2; FLJ17670; FLJ17679; I79_004087; IMD48; kinase ZAP70; mrtle; mur; Srk; STCD; STD; syk-related protein tyrosine kinase; Syk-related tyrosine kinase; Tyrosine-protein kinase ZAP-70; TZK; ZA70; Zap70; ZAP-70; zeta chain of T cell receptor associated protein kinase 70; zeta chain of T cell receptor associated protein kinase 70kDa; zeta-chain (TCR) associated protein kinase; zeta-chain (TCR) associated protein kinase 70; zeta-chain (TCR) associated protein kinase 70kDa; zeta-chain associated protein kinase 70kDa; zeta-chain associated protein kinase, 70kD |
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