{"product_id":"cst-2701t","title":"CST,  2701T, Phospho-Zap-70 (Tyr319)\/Syk (Tyr352) Antibody","description":"Polyclonal Antibody for studying ZAP70 (Tyr319) phosphate\/Syk (Tyr352) phosphate. Validated for Western Blotting,Simple Western™,Immunofluorescence (Immunocytochemistry). Available in 3 sizes. Highly specific and rigorously validated in-house, Phospho-Zap-70 (Tyr319)\/Syk (Tyr352) Antibody (CST #2701) is ready to ship.\n\n\u003cb\u003eProduct Usage Information\u003c\/b\u003e\nWestern Blotting: 1:1000\nSimple Western™: 1:10 - 1:50\nImmunofluorescence (Immunocytochemistry): 1:50\n\u003cb\u003eStorage\u003c\/b\u003e\nSupplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg\/ml BSA and 50% glycerol. Store at -20°C. Do not aliquot the antibody.\n\u003cb\u003eProtocol\u003c\/b\u003e\nAvailable protocols: Western Blotting, Immunofluorescence (Immunocytochemistry)\n\u003cb\u003eSpecificity \/ Sensitivity\u003c\/b\u003e\nPhospho-Zap-70 (Tyr319)\/Syk (Tyr352) Antibody detects endogenous levels of Zap-70 only when phosphorylated at Tyr319. It cross-reacts with endogenous levels of Syk when phosphorylated at Tyr352.\nSpecies Reactivity: Human\n\u003cb\u003eSource \/ Purification\u003c\/b\u003e\nPolyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Tyr319 of human Zap-70. Antibodies are purified by protein A and peptide affinity chromatography.\n\u003cb\u003eBackground\u003c\/b\u003e\nThe 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). Phosphorylation of Tyr319 is required for the assembly of a Zap-70-containing signaling complex that leads to the activation of the PLC-gamma1-dependent and Ras-dependent signaling cascades in antigen-stimulated T cells (5,6). The orthologous Tyr352 residue in Syk is also involved in the association with PLC-gamma1 (9).\n\u003cb\u003eAlternate Names\u003c\/b\u003e\n70 kDa zeta-associated protein; 70 kDa zeta-chain associated protein; ADMIO2; DKFZp313N1010; FLJ17670; FLJ17679; FLJ25043; FLJ37489; IMD48; KSYK; p72-Syk; spleen associated tyrosine kinase; Spleen tyrosine kinase; SRK; STCD; STD; SYK; Syk-related tyrosine kinase; Tyrosine-protein kinase SYK; Tyrosine-protein kinase ZAP-70; TZK; ZAP-70; ZAP70; zeta chain of T cell receptor associated protein kinase 70; zeta chain of T cell receptor associated protein kinase 70kDa; zeta-chain (TCR) associated protein kinase 70kDa; zeta-chain associated protein kinase, 70kD\n\n\u003cb\u003eSpecification\u003c\/b\u003e\n\nREACTIVITY: H\nSENSITIVITY: Endogenous\nMW (kDa): 70 Zap-70, 72 Syk\nSOURCE: Rabbit","brand":"CST","offers":[{"title":"Default Title","offer_id":46797942653097,"sku":"2701T","price":0.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/iright.com\/products\/cst-2701t","provider":"Iright","version":"1.0","type":"link"}