The antibody detects endogenous level of syk only when phosphorylated at tyrosine 323.
纯化方法
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography usingepitope-specific phosphopeptide. The antibody against non-phosphopeptide was removedby chromatography using non-phosphopeptide corresponding to the phosphorylation site.
免疫原
Peptide sequence around phosphorylation site of pTyr323 (N-P-Y (p) -E- P) derived from Human syk. Antibodies were produced by immunizing rabbits with synthetic phosphopeptide and KLH conjugates.
Positive effector of BCR-stimulated responses. Couples the B-cell antigen receptor (BCR) to the mobilization of calcium ion either through a phosphoinositide 3-kinase-dependent pathway, when not phosphorylated on tyrosines of the linker region, or through a phospholipase C-gamma-dependent pathway, when phosphorylated on Tyr-348 and Tyr-352. Thus the differential phosphorylation of Syk can determine the pathway by which BCR is coupled to the regulation of intracellular calcium ion