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Product Name
SYK Polyclonal Antibody
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Description
Polyclonal antibody to SYK
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Tested applications
WB, IHC, IF
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Species reactivity
Human, Mouse, Rat
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Alternative names
SYK antibody; p72-Syk antibody; tyrosine-protein kinase SYK antibody
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Isotype
Rabbit IgG
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Preparation
Antigen: Recombinant protein of human SYK
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Clonality
Polyclonal
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Formulation
PBS with 0.02% sodium azide, 50% glycerol, pH7.3.
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Storage instructions
Store at -20℃. Avoid freeze / thaw cycles.
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Applications
WB 1:500 - 1:2000
IHC 1:50 - 1:100
IF 1:50 - 1:200 -
Validations
Western blot - SYK Polyclonal Antibody
Western blot analysis of extracts of various cell lines, using SYK antibody at 1:500 dilution.Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) at 1:10000 dilution.Lysates/proteins: 25ug per lane.Blocking buffer: 3% nonfat dry milk in TBST.Detection: ECL Basic Kit .Exposure time: 90s.
Immunohistochemistry - SYK Polyclonal Antibody
Immunohistochemistry of paraffin-embedded mouse brain using SYK Antibody at dilution of 1:100 (40x lens).
Immunohistochemistry - SYK Polyclonal Antibody
Immunohistochemistry of paraffin-embedded rat kidney using SYK Antibody at dilution of 1:100 (40x lens).
Immunohistochemistry - SYK Polyclonal Antibody
Immunohistochemistry of paraffin-embedded rat heart using SYK Antibody at dilution of 1:100 (40x lens).
Immunohistochemistry - SYK Polyclonal Antibody
Immunohistochemistry of paraffin-embedded human stomach using SYK Antibody at dilution of 1:100 (40x lens).
Immunofluorescence - SYK Polyclonal Antibody
Immunofluorescence analysis of U2OS cells using SYK antibody at dilution of 1:100. Blue: DAPI for nuclear staining.
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Background
Non-receptor tyrosine kinase which mediates signal transduction downstream of a variety of transmembrane receptors including classical immunoreceptors like the B-cell receptor (BCR). Regulates several biological processes including innate and adaptive immunity, cell adhesion, osteoclast maturation, platelet activation and vascular development. Assembles into signaling complexes with activated receptors at the plasma membrane via interaction between its SH2 domains and the receptor tyrosine-phosphorylated ITAM domains. The association with the receptor can also be indirect and mediated by adapter proteins containing ITAM or partial hemITAM domains. The phosphorylation of the ITAM domains is generally mediated by SRC subfamily kinases upon engagement of the receptor. More rarely signal transduction via SYK could be ITAM-independent. Direct downstream effectors phosphorylated by SYK include VAV1, PLCG1, PI-3-kinase, LCP2 and BLNK. Initially identified as essential in B-cell receptor (BCR) signaling, it is necessary for the maturation of B-cells most probably at the pro-B to pre-B transition. Activated upon BCR engagement, it phosphorylates and activates BLNK an adapter linking the activated BCR to downstream signaling adapters and effectors. It also phosphorylates and activates PLCG1 and the PKC signaling pathway. It also phosphorylates BTK and regulates its activity in B-cell antigen receptor (BCR)-coupled signaling. In addition to its function downstream of BCR plays also a role in T-cell receptor signaling. Plays also a crucial role in the innate immune response to fungal, bacterial and viral pathogens. It is for instance activated by the membrane lectin CLEC7A. Upon stimulation by fungal proteins, CLEC7A together with SYK activates immune cells inducing the production of ROS. Also activates the inflammasome and NF-kappa-B-mediated transcription of chemokines and cytokines in presence of pathogens. Regulates neutrophil degranulation and phagocytosis through activation of the MAPK signaling cascade (By similarity). Required for the stimulation of neutrophil phagocytosis by IL15. Also mediates the activation of dendritic cells by cell necrosis stimuli. Also involved in mast cells activation. Involved in interleukin-3/IL3-mediated signaling pathway in basophils (By similarity). Also functions downstream of receptors mediating cell adhesion. Relays for instance, integrin-mediated neutrophils and macrophages activation and P-selectin receptor/SELPG-mediated recruitment of leukocytes to inflammatory loci. Plays also a role in non-immune processes. It is for instance involved in vascular development where it may regulate blood and lymphatic vascular separation. It is also required for osteoclast development and function. Functions in the activation of platelets by collagen, mediating PLCG2 phosphorylation and activation. May be coupled to the collagen receptor by the ITAM domain-containing FCER1G. Also activated by the membrane lectin CLEC1B that is required for activation of platelets by PDPN/podoplanin. Involved in platelet adhesion being activated by ITGB3 engaged by fibrinogen. Together with CEACAM20, enhances production of the cytokine CXCL8/IL-8 via the NFKB pathway and may thus have a role in the intestinal immune response (By similarity).
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Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"