ZAP70（zeta chain of T cell receptor 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 ZAP70 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 ZAP70.

Phospho-ZAP-70 (Y319) Polyclonal Antibody detects endogenous levels of ZAP-70 protein only when phosphorylated at Y319.

Optimal working dilutions should be determined experimentally by the investigator. Suggested starting dilutions are as follows: WB: 1:500-1:2000, IHC-p: 1:100-1:300, IF: 1:200-1:1000, ELISA: 1:20000. Not yet tested in other applications.

ZAP-70 (phospho Tyr319) Polyclonal Antibody product listed herein is for research use only and is not intended for use in human or clinical diagnosis. Suggested applications of our products are not recommendations to use our products in violation of any patent or as a license. We cannot be responsible for patent infringements or other violations that may occur with the use of this product.

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