CST, 3581S, Phospho-LAT (Tyr171) Antibody

Polyclonal Antibody for studying LAT (Tyr200) phosphate. Validated for Western Blotting. Highly specific and rigorously validated in-house, Phospho-LAT (Tyr171) Antibody (CST #3581) is ready to ship. Product Usage Information Western Blotting: 1:1000 Storage Supplied 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. Protocol Available protocols: Western Blotting Specificity / Sensitivity Phospho-LAT (Tyr171) Antibody detects endogenous levels of LAT only when phosphorylated at tyrosine 171. Tyr171 of LAT, short isoform corresponds to Tyr200 of LAT, long isoform. Species Reactivity: Human Source / Purification Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues around Tyr171 of human LAT. Antibodies are purified by protein A and peptide affinity chromatography. Background LAT, a transmembrane adaptor protein expressed in T, NK, and mast cells, is an important mediator for T cell receptor (TCR) signaling (1). Upon TCR engagement, activated Zap-70 phosphorylates LAT at multiple conserved tyrosine residues within SH2 binding motifs, exposing these motifs as the docking sites for downstream signaling targets (2,3). The phosphorylation of LAT at Tyr171 and Tyr220 enables the binding of Grb2, Gads/SLP-76, PLCγ1, and PI3 kinase through their SH2 domain and translocates them to the membrane. This process eventually leads to activation of the corresponding signaling pathways (1-4). Alternate Names 36 kDa phospho-tyrosine adapter protein; 36 kDa phospho-tyrosine adaptor protein; IMD52; LAT; LAT1; linker for activation of T cells; linker for activation of T cells, transmembrane adaptor; Linker for activation of T-cells family member 1; p36-38; pp36 Specification REACTIVITY: H SENSITIVITY: Endogenous MW (kDa): 36, 38 SOURCE: Rabbit