antibody

Anti-ZAP70 Antibody Picoband™

PB9968

100μg/vial

polyclonal

domestic rabbit

nonconjugated

western blot, immunohistochemistry

Anti-ZAP70 Antibody Picoband™

100μg/vial

Polyclonal

Rabbit

Human

IHC, WB

Immunohistochemistry (Paraffin-embedded Section), 0.5-1µg/ml, Human, By Heat. Western blot, 0.1-0.5µg/ml, Human.

Tested Species: In-house tested species with positive results. By Heat: Boiling the paraffin sections in 10mM citrate buffer, pH6.0, for 20mins is required for the staining of formalin/paraffin sections. Other applications have not been tested. Optimal dilutions should be determined by end users.

Boster Bio Anti-ZAP70 Antibody Picoband™ catalog # PB9968. Tested in IHC, WB applications. This antibody reacts with Human.

Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.

ZAP70

P43403

A synthetic peptide corresponding to a sequence in the middle region of human ZAP70 (359-393aa MRKKQIDVAIKVLKQGTEKADTEEMMREAQIMHQL), different from the related mouse sequence by two amino acids.

Lyophilized

Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg NaN3.

Immunogen affinity purified.

No cross reactivity with other proteins

Store at -20˚C for one year from date of receipt. After reconstitution, at 4˚C for one month. It can also be aliquotted and stored frozen at -20˚C for six months. Avoid repeated freeze-thaw cycles.

Add 0.2ml of distilled water will yield a concentration of 500ug/ml.

Tyrosine-protein kinase ZAP-70

Tyrosine-protein kinase ZAP-70; 2.7.10.2; 70 kDa zeta-chain associated protein; Syk-related tyrosine kinase; ZAP70; SRK;

Tyrosine-protein kinase ZAP-70

69872 MW

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).

Cytoplasm. Cell membrane ; Peripheral membrane protein. In quiescent T-lymphocytes, it is cytoplasmic. Upon TCR activation, it is recruited at the plasma membrane by interacting with CD247/CD3Z. Colocalizes together with RHOH in the immunological synapse. RHOH is required for its proper localization to the cell membrane and cytoskeleton fractions in the thymocytes (By similarity).

Expressed in T- and natural killer cells. Also present in early thymocytes and pro/pre B-cells.

Boster recommends Enhanced Chemiluminescent Kit with anti-Rabbit IgG (EK1002) for Western blot, and HRP Conjugated anti-Rabbit IgG Super Vision Assay Kit (SV0002-1) for IHC(P).

ZAP-70 (Zeta-chain-associated protein kinase 70) encodes an enzyme belonging to the protein tyrosine kinase family, and it plays a role in T-cell development and lymphocyte activation. This enzyme, which is phosphorylated on tyrosine residues upon T-cell antigen receptor (TCR) stimulation, functions in the initial step of TCR-mediated signal transduction in combination with the Src family kinases, Lck and Fyn. This enzyme is also essential for thymocyte development. Mutations in this gene cause selective T-cell defect, a severe combined immunodeficiency disease characterized by a selective absence of CD8-positive T-cells. Two transcript variants that encode different isoforms have been found for this gene.

Adaptive Immunity, Cell Type Markers, Immunology, Protein Phosphorylation, Signal Transduction, T Cells, Tags & Cell Markers, Tumor Associated, Tyrosine Kinases