Product Name: Fgr-pY208+pY209
Product Number: AB-PK638
Size: 25 µg      Price:89.00
      $US
Target Full Name: Gardner-Rasheed feline sarcoma viral (v-fgr) oncogene

Target Alias: C-Fgr; Fgr protein; Gardner-Rasheed feline sarcoma viral (v-fgr) oncogene; Kinase Fgr; P55c-fgr; P55-Fgr; p58c-fgr; Proto-oncogene tyrosine-protein kinase Fgr; SRC2; FLJ43153; MGC75096; Q5TGY6; ENSG00000000938

Product Type Specific: Protein kinase phosphosite-specific antibody

Antibody Code: PK638

Antibody Target Type: Phosphosite-specific

Antibody Phosphosite: Y208+Y209

Protein UniProt: P09769

Protein SigNET: P09769

Antibody Type: Polyclonal

Antibody Host Species: Rabbit
Antibody Immunogen Source: Human Fgr sequence peptide Cat. No.: PE-04AMH80

Antibody Immunogen Sequence: MGG(pY)(pY)ITT(bA)C

Antibody Immunogen Description: Corresponds to amino acid residues M205 to T212; In the SH2 domain. Two of This is the major in vivo phosphorylation sites in Fgr.

Production Method: The immunizing peptide was produced by solid phase synthesis on a multipep peptide synthesizer and purified by reverse-phase hplc chromatography. Purity was assessed by analytical hplc and the amino acid sequence confirmed by mass spectrometry analysis. This peptide was coupled to KLH prior to immunization into rabbits. New Zealand White rabbits were subcutaneously injected with KLH-coupled immunizing peptide every 4 weeks for 4 months. The sera from these animals was applied onto an agarose column to which the immunogen peptide was thio-linked. Antibody was eluted from the column with 0.1 M glycine, pH 2.5. Subsequently, the antibody solution was neutralized to pH 7.0 with saturated Tris.This antibody was also subject to negative purification over phosphotyrosine-agarose.

Antibody Modification: Unconjugated. Contact KInexus if you are interest in having the antibody biotinylated or coupled with fluorescent dyes.

Antibody Concentration: 1 mg/ml

Storage Buffer: Phosphate buffered saline pH 7.4, 0.05% Thimerasol

Storage Conditions: For long term storage, keep frozen at -40°C or lower. Stock solution can be kept at +4°C for more than 3 months. Avoid repeated freeze-thaw cycles.

Product Use: Western blotting | Antibody microarray

Antibody Dilution Recommended: 2 µg/ml for immunoblotting

Antibody Potency: Medium immunoreactivity of a target-sized protein by Western blotting in HeLa cells following treatment with phenylarsine oxide (PAO) .

Antibody Species Reactivity: Human

Antibody Positive Control: The observed molecular mass of the processed target protein on SDS-PAGE gels is reported to be around 55-63 kDa.

Antibody Specificity: Medium-high

Antibody Cross Reactivity: Some cross-reactivities in A549 cells including EGF increase in 50 kDa protein, which might be target. Clean in HeLa, except phenylarsine oxide (PAO) increases 54 kDa protein, which may be target. Fairly clean in HepG2, Jurkat and T98G cells, except that in Jurkat cells, phenylarsine PAO treatment increased 15 kDa protein detection and decreased 75 kDa protein immunoreactivity.

Related Product 1: Fgr-pY208+pY209 blocking peptide

Related Product 2: Fgr-ANT pan-specific antibody (Cat. No.: AB-NK268-1)

Related Product 3: Fgr-pY412 phosphosite-specific antibody (Cat. No.: AB-PK639)
Scientific Background: Fgr is a protein-tyrosine kinase of the TK group and Src family. It is a non-receptor kinase that transmits signals from cell surface receptors and regulates immune responses. In addition, it functions as positive regulator of cell migration and regulates cytoskeleton reorganization. Fgr appears to be an oncoprotein (OP). A Y523F mutation in Fgr is associated with strongly increased catalytic activity, which can be oncogenic and promote abnormal cell proliferation. Fgr oncogene mRNA was found to be induced in B lymphocytes by Epstein-Barr virus infection.
Figure 1. Epitope mapping of FGR-pY208+pY209 antibody with similar phosphopeptides on dot blots.


Figure 2. Identification of phosphosites related to FGR-pY208+pY209.