Rabbit SYK Polyclonal Antibody | anti-SYK antibody

SYK Antibody (C-term)

Cat. Num. AAA9217150

• Gene Names: SYK; p72-Syk
• Reactivity: Human, Mouse; Predicted Reactivity: Pig, Rat
• Applications: Western Blot, Immunohistochemistry, ELISA
• Synonyms: SYK; Polyclonal Antibody; SYK Antibody (C-term); Tyrosine-protein kinase SYK; Spleen tyrosine kinase; p72-Syk; anti-SYK antibody

• Host: Rabbit
• Reactivity: Human, Mouse; Predicted Reactivity: Pig, Rat
• Clonality: Polyclonal
• Isotype: Ig
• Specificity: This SYK antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 387-417 amino acids from the C-terminal region of human SYK.
• Form/Format: Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide. This antibody is prepared by Saturated Ammonium Sulfate (SAS) precipitation followed by dialysis against PBS.
• Sequence Length: 612

• Applicable Applications for anti-SYK antibody: Western Blot (WB), Immunohistochemistry (IHC) Paraffin, ELISA (EIA)
• Application Notes: WB:~~1:1000; IHC-P:~~1:50~100
• Subtitle: Purified Rabbit Polyclonal Antibody (Pab)
• Cellular Location: Cell membrane. Cytoplasm, cytosol.
• Tissue Location: Widely expressed in hematopoietic cells (at protein level). Within the B-cells compartment it is for instance expressed for pro-B-cells to plasma cells.
• Antigen Region: 387-417 aa
• Antigen Type: Synthetic Peptide
• Preparation and Storage: Maintain refrigerated at 2-8 degree C for up to 6 months. For long term storage store at -20 degree C in small aliquots to prevent freeze-thaw cycles.

Western Blot (WB)

(Anti-SYK Antibody (K402) at 1:1000 dilution + Raji whole cell lysateLysates/proteins at 20 ug per lane. SecondaryGoat Anti-Rabbit IgG, (H+L), Peroxidase conjugated at 1/10000 dilution. Predicted band size : 72 kDaBlocking/Dilution buffer: 5% NFDM/TBST.)

Western Blot (WB)

(Western blot analysis of SYK (arrow) using rabbit polyclonal SYK Antibody (K402) . 293 cell lysates (2 ug/lane) either nontransfected (Lane 1) or transiently transfected (Lane 2) with the SYK gene.)

Immunohistochemistry (IHC)-Paraffin

(Formalin-fixed and paraffin-embedded human cancer tissue reacted with the primary antibody, which was peroxidase-conjugated to the secondary antibody, followed by AEC staining. This data demonstrates the use of this antibody for immunohistochemistry; clinical relevance has not been evaluated. BC = breast carcinoma; HC = hepatocarcinoma.)

Western Blot (WB)

(The anti-SYK Pab is used in Western blot to detect SYK in THP-1 cell lysate (Lane 1) and mouse spleen tissue lysate (Lane 2).)

Related Product Information for anti-SYK antibody

Description: Protein kinases are enzymes that transfer a phosphate group from a phosphate donor, generally the g phosphate of ATP, onto an acceptor amino acid in a substrate protein. By this basic mechanism, protein kinases mediate most of the signal transduction in eukaryotic cells, regulating cellular metabolism, transcription, cell cycle progression, cytoskeletal rearrangement and cell movement, apoptosis, and differentiation. With more than 500 gene products, the protein kinase family is one of the largest families of proteins in eukaryotes. The family has been classified in 8 major groups based on sequence comparison of their tyrosine (PTK) or serine/threonine (STK) kinase catalytic domains. The STE group (homologs of yeast Sterile 7, 11, 20 kinases) consists of 50 kinases related to the mitogen-activated protein kinase (MAPK) cascade families (Ste7/MAP2K, Ste11/MAP3K, and Ste20/MAP4K). MAP kinase cascades, consisting of a MAPK and one or more upstream regulatory kinases (MAPKKs) have been best characterized in the yeast pheromone response pathway. Pheromones bind to Ste cell surface receptors and activate yeast MAPK pathway. The tyrosine kinase (TK) group is mainly involved in the regulation of cell-cell interactions such as differentiation, adhesion, motility and death. There are currently about 90 TK genes sequenced, 58 are of receptor protein TK (e. g. EGFR, EPH, FGFR, PDGFR, TRK, and VEGFR families), and 32 of cytosolic TK (e. g. ABL, FAK, JAK, and SRC families).

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. Also mediates the activation of dendritic cells by cell necrosis stimuli. Also involved in mast cells activation. 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.

Product Categories/Family for anti-SYK antibody

Primary Antibodies; Cardiovascular; Immunology; Signal Transduction

References

Wang, L., et al., Cancer Res. 63 (15):4724-4730 (2003). Takada, Y., et al., J. Biol. Chem. 278 (26):24233-24241 (2003). Krishnan, S., et al., J. Immunol. 170 (8):4189-4195 (2003). Toyama, T., et al., Cancer Lett. 189 (1):97-102 (2003). Jiang, K., et al., Blood 101 (1):236-244 (2003).

NCBI and Uniprot Product Information

• NCBI GI #: 205277435
• NCBI GeneID: 6850
• NCBI Accession #: NP_001128524.1
• NCBI GenBank Nucleotide #: NM_001135052.3
• UniProt Accession #: P43405; Q64725; Q00655; P48025
• Molecular Weight: 72066 Da
• NCBI Official Full Name: tyrosine-protein kinase SYK isoform Syk(S)
• NCBI Official Synonym Full Names: spleen tyrosine kinase
• NCBI Official Symbol: SYK
• NCBI Official Synonym Symbols: p72-Syk
• NCBI Protein Information: tyrosine-protein kinase SYK
• UniProt Protein Name: Tyrosine-protein kinase SYK
• Protein Family: Tyrosine-protein kinase
• UniProt Gene Name: SYK
• UniProt Entry Name: KSYK_HUMAN

NCBI Description

This gene encodes a member of the family of non-receptor type Tyr protein kinases. This protein is widely expressed in hematopoietic cells and is involved in coupling activated immunoreceptors to downstream signaling events that mediate diverse cellular responses, including proliferation, differentiation, and phagocytosis. It is thought to be a modulator of epithelial cell growth and a potential tumour suppressor in human breast carcinomas. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2010]

Uniprot Description

Syk: a cytoplasmic tyrosine kinase of the SYK family containing two SH2 domains. Plays a central role in the B cell receptor (BCR) response. An upstream activator of the PI3K, PLCgamma2, and Rac/cdc42 pathways in the BCR response. Required for the sequential events of Fc gamma IIa receptor-mediated phagocytosis. Expression highest in murine spleen, heart, mammary gland and thymus. Two splice variant isoforms have been described.

Protein type: Kinase, protein; Protein kinase, tyrosine (non-receptor); EC 2.7.10.2; Protein kinase, TK; TK group; Syk family

Chromosomal Location of Human Ortholog: 9q22

Cellular Component: B cell receptor complex; cytoplasm; cytosol; extrinsic to internal side of plasma membrane; nucleus; plasma membrane; protein complex; T cell receptor complex

Molecular Function: ATP binding; integrin binding; non-membrane spanning protein tyrosine kinase activity; protein binding; protein kinase activity; protein kinase binding; protein serine/threonine kinase activity; protein-tyrosine kinase activity; receptor signaling protein tyrosine kinase activity

Biological Process: activation of JNK activity; adaptive immune response; angiogenesis; B cell receptor signaling pathway; beta selection; blood vessel morphogenesis; cell proliferation; defense response to bacterium; inflammatory response; innate immune response; integrin-mediated signaling pathway; leukocyte activation during immune response; leukocyte adhesion; leukotriene biosynthetic process; lymph vessel development; macrophage activation during immune response; neutrophil activation during immune response; neutrophil chemotaxis; organ morphogenesis; peptidyl-serine phosphorylation; platelet activation; positive regulation of alpha-beta T cell differentiation; positive regulation of alpha-beta T cell proliferation; positive regulation of B cell differentiation; positive regulation of bone resorption; positive regulation of calcium-mediated signaling; positive regulation of cell adhesion mediated by integrin; positive regulation of cytokine secretion; positive regulation of gamma-delta T cell differentiation; positive regulation of granulocyte macrophage colony-stimulating factor biosynthetic process; positive regulation of interferon type I production; positive regulation of interleukin-3 biosynthetic process; positive regulation of mast cell degranulation; positive regulation of peptidyl-tyrosine phosphorylation; positive regulation of receptor internalization; protein amino acid phosphorylation; receptor internalization; regulation of neutrophil degranulation; regulation of phagocytosis; regulation of superoxide release; regulation of transcription factor activity; serotonin secretion by platelet; stimulatory C-type lectin receptor signaling pathway; transcription factor import into nucleus; transmembrane receptor protein tyrosine kinase signaling pathway; viral reproduction