• Species Reactivity

  Mouse

• Specificity

  Detects mouse FGF R3 in direct ELISAs. In direct ELISAs, 100% cross-reactivity with the (IIIb) and (IIIc) isoforms of recombinant human FGF R3 is observed. Neutralizes the bioactivity of mouse FGF R3. Functions equally as well in the neutralization of recombinant mouse (rm) FGF R3 alpha (IIIb) and rmFGF R3 alpha (IIIc).

• Source

  Monoclonal Rat IgG    _2A Clone # 136812

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  Mouse myeloma cell line NS0-derived recombinant mouse FGF R3    
  Glu21-Tyr369 (Asn310Ile, Ala354 del) (predicted)    
  Accession # NP_001156689

• Formulation

  Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.

• Endotoxin Level

  <0.10 EU per 1 μg of the antibody by the LAL method.  

• Label

  Unconjugated

Applications

• Recommended    
  Concentration

  Sample

• Neutralization

  Measured by its ability to neutralize FGF R3-mediated inhibition of proliferation in the NR6R‑3T3 mouse fibroblast cell line. The Neutralization Dose (ND    ₅₀) is typically 3-12 µg/mL in the presence of 12 ng/mL Recombinant Mouse FGF R3 (IIIc) Fc Chimera, 0.3 ng/mL Recombinant Human FGF acidic, and 10 µg/mL heparin.

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Data Examples

Preparation and Storage

• Reconstitution

  Reconstitute at 0.5 mg/mL in sterile PBS.

• Shipping

  The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C

• Stability & Storage

  Use a manual defrost freezer and avoid repeated freeze-thaw cycles.    

• 12 months from date of receipt, -20 to -70 °C as supplied.

• 1 month, 2 to 8 °C under sterile conditions after reconstitution.

• 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: FGF R3

Fibroblast growth factors (FGFs) comprise a family of at least eighteen structurally related proteins that are involved in a multitude of physiological and pathological cellular processes, including cell growth, differentiation, angiogenesis, wound healing and tumorgenesis. The biological activities of the FGFs are mediated by a family of type I transmembrane tyrosine kinases which undergo dimerization and autophosphorylation after ligand binding. Four distinct genes encoding closely related FGF receptors, FGF R1‑4, are known. All four genes for FGF Rs encode proteins with an N‑terminal signal peptide, three immunoglobulin (Ig)‑like domains, an acid‑box region containing a run of acidic residues between the IgI and IgII domains, a transmembrane domain and the split tyrosine‑kinase domain. Multiple forms of FGF R1‑3 are generated by alternative splicing of the mRNAs. A frequent splicing event involving FGF R1 and 2 results in receptors containing all three Ig domains, referred to as the alpha  isoform, or only IgII and IgIII, referred to as the beta  isoform. Only the alpha  isoform has been identified for FGF R3 and FGF R4. Additional splicing events for FGF R1‑3, involving the C‑terminal half of the IgIII domain encoded by two mutually exclusive alternative exons, generate FGF receptors with alternative IgIII domains (IIIb and IIIc). A IIIa isoform which is a secreted FGF binding protein containing only the N‑terminal half of the IgIII domain plus some intron sequences has also been reported for FGF R1. Mutations in FGF R1‑3 have been found in patients with birth defects involving craniosynostosis. The complex patterns of expression of these receptors as well as the specificity of their interactions with the various FGF ligand family members are being investigated.

• References:

1. Galzie, Z. et al. (1997) Biochem. Cell Biol. 75:669.

2. Burke, D. et al. (1998) Trends Biochem. Sci. 23:59.

• Long Name:

  Fibroblast Growth Factor Receptor 3

• Entrez Gene IDs:

  2261 (Human); 14184 (Mouse)

• Alternate Names:

  CD333; CEK; EC 2.7.10; FGF R3; FGFR3; fibroblast growth factor receptor 3; HSFGFR3EX; JTK4; JTK4thanatophoric dwarfism