Purified Mouse Anti-human ZAP70 Antibody *ZAP-03, monoclonal*

Tyrosine-protein kinase ZAP-70 (sometimes referred to as Syk-related tyrosine kinase) is a protein with a molecular weight of 70 kDa, found in the cell-cell junction, cytoplasm and T cell receptor complex of cells. In humans, tyrosine-protein kinase ZAP-70 plays an important role in organismal processes, namely, adaptive immune response, protein phosphorylation and T cell differentiation. It has been closely linked to key functions like non-membrane spanning protein tyrosine kinase. Sequencing of tyrosine-protein kinase ZAP-70 has supported it contains 3 types of conserved structural units: SH2 1, SH2 2 and protein kinase domain. Tyrosine-protein kinase ZAP-70 takes part in processes such as cell population proliferation. It recognizes phosphotyrosine residue, ATP and signaling receptor. Tyrosine-protein kinase ZAP-70 acts to positively regulate calcium-mediated signaling, α-beta T cell differentiation and α-beta T cell proliferation. It is the subject of intensive research in part because it is involved with the T cell receptor signaling pathway and transmembrane receptor protein tyrosine kinase signaling pathway. Mutations and abnormalities in tyrosine-protein kinase ZAP-70 have been thought to be involved with a number of diseases, in particular, immunodeficiency 48 (IMD48) and autoimmune disease, multisystem, infantile-onset, 2 (ADMIO2). Immunodeficiency 48, an autosomal recessive inheritancedisorder characterized by eczema, recurrent candida infections and pneumonia, has especially been of interest to researchers.

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