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REACTIVITY SENSITIVITY MW (kDa) Isotype
Rabbit 

Product Usage Information

Storage: Supplied in PBS (pH 7.2), less than 0.1% sodium azide and 2 mg/ml BSA. Store at 4°C. Do not aliquot the antibody. Protect from light. Do not freeze.

Specificity / Sensitivity

Zap-70 (D1C10E) XP® Rabbit mAb (Alexa Fluor® 488 Conjugate) detects endogenous levels of total Zap-70 protein. This antibody does not cross-react with other related proteins.


Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding the amino terminus of human Zap-70 protein.

Product Description

This Cell Signaling Technology antibody is conjugated to Alexa Fluor® 488 fluorescent dye and tested in-house for flow cytometry analysis in human cells. The antibody is expected to exhibit the same species cross-reactivity as the unconjugated Zap-70 (D1C10E) XP® Rabbit mAb #3165.


The Syk family protein tyrosine kinase Zap-70 is expressed in T and NK cells and plays a critical role in mediating T cell activation in response to T cell receptor (TCR) engagement (1). Following TCR engagement, Zap-70 is rapidly phosphorylated on several tyrosine residues through autophosphorylation and transphosphorylation by the Src family tyrosine kinase Lck (2-6). Tyrosine phosphorylation correlates with increased Zap-70 kinase activity and downstream signaling events. Expression of Zap-70 is correlated with disease progression and survival in patients with chronic lymphocytic leukemia (7,8).


1.  Chu, D.H. et al. (1998) Immunol Rev 165, 167-80.

2.  Iwashima, M. et al. (1994) Science 263, 1136-9.

3.  Neumeister, E.N. et al. (1995) Mol Cell Biol 15, 3171-8.

4.  Chan, A.C. et al. (1995) EMBO J 14, 2499-508.

5.  Williams, B.L. et al. (1999) EMBO J 18, 1832-44.

6.  Di Bartolo, V. et al. (1999) J Biol Chem 274, 6285-94.

7.  Wiestner, A. et al. (2003) Blood 101, 4944-51.

8.  Crespo, M. et al. (2003) N Engl J Med 348, 1764-75.


Entrez-Gene Id 7535
Swiss-Prot Acc. P43403


For Research Use Only. Not For Use In Diagnostic Procedures.
Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
XP is a registered trademark of Cell Signaling Technology, Inc.
The Alexa Fluor dye antibody conjugates in this product are sold under license from Life Technologies Corporation for research use only, except for use in combination with DNA microarrays. The Alexa Fluor® dyes (except for Alexa Fluor® 430 dye) are covered by pending and issued patents. Alexa Fluor® is a registered trademark of Molecular Probes, Inc.

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Zap-70 (D1C10E) XP® Rabbit mAb (Alexa Fluor® 488 Conjugate)