ANTI-PHOSPHO-SYK (TYR323) (C15-1317-268)

General description

Tyrosine-protein kinase Syk (EC 2.7.10.2; UniProt P43405; also known as p72-Syk, p72Syk, Spleen tyrosine kinase) is encoded by the SYK gene (Gene ID 6850) in human. Spleen tyrosine kinase (Syk) is a non-receptor tyrosine kinase highly expressed by haematopoietic cells. Syk plays a crucial role not only in adaptive immune receptor signalling, but also in cellular adhesion, innate immune recognition, osteoclast maturation, platelet activation and vascular development. Syk adopts an autoinhibited conformation in its inactive state and is activated upon binding immunoreceptor tyrosine-based activation motifs (ITAMs) and phosphorylation of tyrosine residues in the two linker regions (a.a. 108-160 and 260-370) between SH1 (a.a. 15-107) and SH2 (a.a. 168-259), and between SH2 and the kinase domain (a.a. 371-631). Initial ITAM binding triggers rapid activation of Syk, whereas subsequent phosphorylation leads to prolonged activation. In additon, Syk can phosphorylate ITAMs and autophosphorylate its own link region tyrosines, providing a positive feedback loop following initial ITAM-mediated Syk activation. Syk also mediates signalling of receptors that do not contain an ITAM, including integrins and C-type lectins, via interaction with ITAM-containing adaptors, such as DAP12 (TYROBP) and the FcR γ-chain (FcRγ).

Specificity

Target phosphotyrosine residue coresponds to pTyr323 of human Syk spliced isoform 1 and pTyr300 of human Syk spliced isoform 2. Sequence surrounding the target tyrosine is not well conserved in mouse and rat Syk.

Immunogen

Epitope: pTyr323

KLH-conjugated linear peptide corresponding to a sequence surrounding phosphorylated Tyr323 of human Syk.

Application

Research Category
Inflammation & Immunology

This rabbit polyclonal Anti-phospho-Syk (Tyr323) antibody, Cat. No. ABF1207 is validated for use in Western Blotting for the detection of Syk Tyr323 phosphorylation.

Quality

Evaluated by Western Blotting in Jurkat cell lysate.

Western Blotting Analysis: A 1:5,000 dilution of this antibody detected Syk Tyr323 phosphorylation induction in 10 µg of lysate from hydrogen peroxide-treated Jurkat cells.

Target description

~72/69 kDa observed. 72.07/69.51 kDa (human Syk isoform 1/2) calculated.

Linkage

Replaces: 07-915

Physical form

Affinity purified.

Purified rabbit polyclonal antibody in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.

Other Notes

Concentration: Please refer to lot specific datasheet.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

biological source: rabbit. Quality Level: 100. antibody form: affinity isolated antibody. antibody product type: primary antibodies. clone: polyclonal. purified by: affinity chromatography. species reactivity: human. technique(s): western blot: suitable. NCBI accession no.: NP_003168. UniProt accession no.: P43405. shipped in: ambient. target post-translational modification: phosphorylation (pTyr323). Gene Information: human ... SYK(6850). Storage Class Code: 12 - Non Combustible Liquids. WGK: WGK 1. Flash Point(F): Not applicable. Flash Point(C): Not applicable.