This antibody conjugate is suitable for intracellular staining of human whole blood (using BD Phosflow™ Lyse/Fix Buffer) and peripheral blood mononuclear cells (using BD Cytofix™ Fixation Buffer). Any of the three BD Phosflow™ permeabilization buffers may be used.
Sample Volume
20 μL
Restrictions
For Research Use only
Format
Liquid
Buffer
Aqueous buffered solution containing BSA and ≤0.09 % sodium azide.
Preservative
Sodium azide
Precaution of Use
This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage
4 °C
Storage Comment
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. The antibody was conjugated to Alexa Fluor® 488 under optimum conditions, and unreacted Alexa Fluor® 488 was removed.
Magnan, Di Bartolo, Mura, Boyer, Richelme, Lin, Roure, Gillet, Arrieumerlou, Acuto, Malissen, Malissen: "T cell development and T cell responses in mice with mutations affecting tyrosines 292 or 315 of the ZAP-70 protein tyrosine kinase." in: The Journal of experimental medicine, Vol. 194, Issue 4, pp. 491-505, (2001) (PubMed).
Rao, Lupher, Ota, Reedquist, Druker, Band: "The linker phosphorylation site Tyr292 mediates the negative regulatory effect of Cbl on ZAP-70 in T cells." in: Journal of immunology (Baltimore, Md. : 1950), Vol. 164, Issue 9, pp. 4616-26, (2000) (PubMed).
Kong, Dalton, Bubeck Wardenburg, Straus, Kurosaki, Chan: "Distinct tyrosine phosphorylation sites in ZAP-70 mediate activation and negative regulation of antigen receptor function." in: Molecular and cellular biology, Vol. 16, Issue 9, pp. 5026-35, (1996) (PubMed).
Target
ZAP70
(zeta-Chain (TCR) Associated Protein Kinase 70kDa (ZAP70))
The 70-kDa zeta chain-associated protein (ZAP70) is a Syk-family protein tyrosine kinase (PTK) that associates with the zeta subunit of the T cell antigen receptor (TCR) and undergoes tyrosine phosphorylation following TCR stimulation. ZAP70 contains two SH2-like domains with the PTK domain located at the C-terminus. TCR-mediated Lck activity leads to phosphorylation of ZAP70 on Tyrosine 493 in the regulatory loop of the PTK domain leading to upregulation of ZAP70 kinase activity. Tyrosine 292 (Y292), in the linker region between the SH2 and PTK domains, is autophosphorylated by the activated PTK domain. By binding with c-Cbl, the phosphorylated Y292 can down-regulate TCR signaling. The J34-602 antibody recognizes ZAP70 phosphorylated at Y292. Synonyms: ZAP-70 (pY292)