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Recombinant ZAP70 (Chronic Lymphocytic Leukemia Marker) Antibody [MSVA-870R]

In Stock
Catalog Number Formulation Size Price
7535-RBM14-P0
Purified Ab with BSA and Azide
20ug
$324.50
7535-RBM14-P1
Purified Ab with BSA and Azide
100ug
$654.50
Flat Rate Domestic: $75 | Orders outside the US - Contact Us for Order Information | Ships next business day
ZAP70 Antibody in Numerous Tissues (IHC)

ZAP70 Antibody in Numerous Tissues (IHC)

Tyrosine-protein kinase ZAP-70 Rabbit Recombinant Monoclonal Antibody (MSVA-870R) tested on many normal and cancer tissues. The immunohistochemistry staining in these tissues aligns with the expression data in Human Protein Atlas.

Applications & Dilutions

Applications Tested Dillution Protocol Note
Immunohistochemistry (IHC)
1:75-1:150
IHC Protocol
Manual Protocol: Freshly cut sections should be used (less than 10 days between cutting and staining). Heat-induced antigen retrieval for 5 minutes in an autoclave at 121°C in pH 7.8 Target Retrieval Solution buffer. Apply the antibody at a dilution of 1:100 at 37°C for 60 minutes. Visualization of bound antibody by the EnVision Kit (Dako, Agilent) according to the manufacturer’s directions.

Summary

ZAP70 is a 70kDa protein tyrosine kinase found in T-cells and natural killer cells. Control of this protein translation is via the IgVH gene.ZAP70 protein is expressed in leukemic cells of approximately 25% of chronic lymphocytic leukemia (CLL) cases as well. Anti-ZAP70 expression is an excellent surrogate marker for the distinction between the Ig-mutated (anti-ZAP70 negative) and Ig-unmutated (anti-ZAP70 positive) CLL subtypes and can identify patient groups with divergent clinical courses. The anti-ZAP70 positive Ig-unmutated CLL cases have been shown to have a poorer prognosis.

Product Properties & Targets

Antibody Type
Rabbit Monoclonals, Recombinant Rabbit Monoclonals
Host
Rabbit
Applications
Immunohistochemistry
Species Reactivity
Human
Research Areas
Cardiovascular, Immunology, PD-1 blockade immunotherapy, Signal Transduction
Isotype / Light Chain
IgG / Kappa
Cellular Localization
Cell membrane, Cytoplasm
Gene Name
ZAP70
Positive Control
Tonsil: A large fraction of the lymphocytes in the interfollicular areas and few lymphocytes in the germinal centres should show a strong ZAP70 immunostaining.
Immunogen
Recombinant fragment (around aa 247-382) of human ZAP70 protein (exact sequence is proprietary)
Alternate Names
Tyrosine-protein kinase ZAP-70, 70 kDa zeta-chain associated protein, Syk-related tyrosine kinase, Selective T cell defect; SRK; STD; Syk-related tyrosine kinase; Tyrosine-protein kinase ZAP-70;TZK; Zeta chain associated protein kinase 70kDa

Database Links

Entrez Gene ID
7535
SwissProt
P43403

Additional Information

Clone
MSVA-870R
Chromosome Location
2q12
Mol. Weight of Antigen
70kDa

Related Antibodies

View All ZAP70 Antibodies

Functions

  • Tyrosine kinase that plays an essential role in regulation of the adaptive immune response. Regulates motility, adhesion and cytokine expression of mature T-cells, as well as thymocyte development. Contributes also to the development and activation of primary B-lymphocytes. When antigen presenting cells (APC) activate T-cell receptor (TCR), a serie of phosphorylations lead to the recruitment of ZAP70 to the doubly phosphorylated TCR component CD247/CD3Z through ITAM motif at the plasma membrane. This recruitment serves to localization to the stimulated TCR and to relieve its autoinhibited conformation. Release of ZAP70 active conformation is further stabilized by phosphorylation mediated by LCK. Subsequently, ZAP70 phosphorylates at least 2 essential adapter proteins: LAT and LCP2. In turn, a large number of signaling molecules are recruited and ultimately lead to lymphokine production, T-cell proliferation and differentiation. Furthermore, ZAP70 controls cytoskeleton modifications, adhesion and mobility of T-lymphocytes, thus ensuring correct delivery of effectors to the APC. ZAP70 is also required for TCR-CD247/CD3Z internalization and degradation through interaction with the E3 ubiquitin-protein ligase CBL and adapter proteins SLA and SLA2. Thus, ZAP70 regulates both T-cell activation switch on and switch off by modulating TCR expression at the T-cell surface. During thymocyte development, ZAP70 promotes survival and cell-cycle progression of developing thymocytes before positive selection (when cells are still CD4/CD8 double negative). Additionally, ZAP70-dependent signaling pathway may also contribute to primary B-cells formation and activation through B-cell receptor (BCR).

Key References

  • Iwashima M, et al. Sequential interactions of the TCR with two distinct cytoplasmic tyrosine kinases. Science 1994;263:1136-9.

PubMed Links

Storage & Stability

Antibody with azide - store at 2 to 8°C. Antibody without azide - store at -20 to -80°C. Antibody is stable for 24 months. Non-hazardous. No MSDS required.

Limitations

This antibody is available for research use only and is not approved for use in diagnosis.

Supplied as

Ab produced in HEK293 cell mammalian-based expression system. Prepared in 10mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide.

Warranty

There are no warranties, expressed or implied, which extend beyond this description. Company is not liable for any personal injury or economic loss resulting from this product.
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