Product Pathways - Lymphocyte Signaling
Phospho-Syk (Ser297) Antibody #14140
|14140S||100 µl ( 10 western blots )||￥4,050.00||现货查询 购买询价 防伪查询|
|14140||carrier free & custom formulation / quantity||email request|
Species cross-reactivity is determined by western blot.
Applications Key: W=Western Blotting,
Species predicted to react based on 100% sequence homology: Mouse, Rat,
Specificity / Sensitivity
Phospho-Syk (Ser297) Antibody recognizes endogenous levels of Syk protein only when phosphorylated at Ser297.
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser297 of human Syk protein. Antibodies are purified by protein A and peptide affinity chromatography.
Syk is a protein tyrosine kinase that plays an important role in intracellular signal transduction in hematopoietic cells (1-3). Syk interacts with immunoreceptor tyrosine-based activation motifs (ITAMs) located in the cytoplasmic domains of immune receptors (4). It couples the activated immunoreceptors to downstream signaling events that mediate diverse cellular responses, including proliferation, differentiation, and phagocytosis (4). There is also evidence of a role for Syk in nonimmune cells and investigators have indicated that Syk is a potential tumor suppressor in human breast carcinomas (5). Tyr323 is a negative regulatory phosphorylation site within the SH2-kinase linker region in Syk. Phosphorylation at Tyr323 provides a direct binding site for the TKB domain of Cbl (6,7). Tyr352 of Syk is involved in the association of PLCγ1 (8). Tyr525 and Tyr526 are located in the activation loop of the Syk kinase domain; phosphorylation at Tyr525/526 of human Syk (equivalent to Tyr519/520 of mouse Syk) is essential for Syk function (9).
Ser297 of human Syk protein-tyrosine kinase (corresponding to mouse Syk residue Ser291) is located within the kinase linker region. Phosphorylation of Ser297 by protein kinase C (PKC) promotes Syk interaction with downstream adaptor proteins, including 14-3-3 and prohibitin (10,11).
- Cheng, A.M. and Chan, A.C. (1997) Curr Opin Immunol 9, 528-33.
- Kurosaki, T. (1997) Curr Opin Immunol 9, 309-18.
- Chu, D.H. et al. (1998) Immunol Rev 165, 167-80.
- Turner, M. et al. (2000) Immunol Today 21, 148-54.
- Coopman, P.J. et al. (2000) Nature 406, 742-7.
- Deckert, M. et al. (1998) J Biol Chem 273, 8867-74.
- Rao, N. et al. (2001) EMBO J 20, 7085-95.
- Law, C.L. et al. (1996) Mol Cell Biol 16, 1305-15.
- Zhang, J. et al. (2000) J Biol Chem 275, 35442-7.
- Bohnenberger, H. et al. (2011) Eur J Immunol 41, 1550-62.
- Paris, L.L. et al. (2010) J Biol Chem 285, 39844-54.
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For Research Use Only. Not For Use In Diagnostic Procedures.
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