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Z2126 Sigma

ZAP-70 Tyrosine Kinase human

≥90% (SDS-PAGE), recombinant, expressed in baculovirus infected insect cells (Histidine tagged), buffered aqueous glycerol solution, ≥150 U/mg



Related Categories Active Kinases, Application Index, Biochemicals and Reagents, Cancer Research, Cancer Research Enzymes,
recombinant   expressed in baculovirus infected insect cells (Histidine tagged)
assay   ≥90% (SDS-PAGE)
form   buffered aqueous glycerol solution
mol wt   mol wt 70 kDa
shipped in   dry ice
storage temp.   −70°C
Gene Information   human ... ZAP70(7535)


Biochem/physiol Actions

ZAP-70 is protein tyrosine kinase of the Syk family that is localized exclusively to the cytosol of T cells and natural killer cells. It is required for T cell activation. It is activated by Lck-mediated phosphorylation of its tyrosine residues.

ZAP-70 Tyrosine Kinase is a protein belongs to Syk family and is essential for T cell activation. It facilitates the upregulation of Fas ligand in activation-induced T cell apoptosis. Additionally, it also plays a pivotal role in LFA-1-dependent T Cell Migration.

Unit Definition

One unit will phosphorylate 1 nmol polyglutamic acid:tyrosine per min at 37 °C at pH 7.0.

Physical form

Solution in 25 mM HEPES, pH 7.5, containing 150 mM NaCl, 0.5 mM DTT, and 50% glycerol.


Human ZAP-70 Tyrosine Kinase was used for mapping the phosphorylation sites on LAT (linker for activation of T cells) for investigating the mechanism of activation of signalling proteins in T cells.

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Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Certificate of Origin

Protocols & Articles
Peer-Reviewed Papers


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