Human FGFR2 (IIIb) Antibody

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FGF R2 alpha  Inhibition of FGF acidic-dependent Cell Proliferation and Neutralization by Human FGF R2 Antibody.
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Product Details
Citations (2)
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Human FGFR2 (IIIb) Antibody Summary

Species Reactivity
Reacts with multiple isoforms of human FGF R2 although it shows a marked preference for human FGF R2 (IIIb) isoforms in some assays as described below. In direct ELISAs, displays a three-fold preference for FGF R2 (IIIb) isoforms over (IIIc) isoforms. Shows approximately 50% cross-reactivity with recombinant mouse (rm) FGF R2 isoforms and no cross-reactivity with any isoforms of recombinant human (rh) FGF R1 or rhFGF R3. In Western blots, shows approximately 25% cross-reactivity with rhFGF R2 (IIIc) isoforms, 100% cross-reactivity with all isoforms of rmFGF R2 and no cross-reactivity with any isoforms of rhFGF RI, rhFGF R3, or rhFGF R4. Neutralizes the bioactivity of rhFGF R2 (IIIb) isoforms.
Monoclonal Mouse IgG1 Clone # 98707
Protein A or G purified from ascites
Mouse myeloma cell line NS0-derived recombinant human FGF R2 isoforms and S. frugiperda insect ovarian cell line Sf 21-derived recombinant human FGF R2 isoforms
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.


Recommended Concentration
Western Blot
1 µg/mL
Recombinant Human FGF R2 beta (IIIb) Fc Chimera (Catalog # 665-FR)
Measured by its ability to neutralize FGF R2 alpha -mediated inhibition of proliferation in the NR6R‑3T3 mouse fibroblast cell line. The Neutralization Dose (ND50) is typically 2-8 µg/mL in the presence of 6 ng/mL Recombinant Human FGF R2 alpha (IIIb) 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. General Protocols are available in the Technical Information section on our website.

Scientific Data

Neutralization FGF R2 alpha  Inhibition of FGF acidic-dependent Cell Proliferation and Neutralization by Human FGF R2 Antibody. View Larger

FGF R2 alpha Inhibition of FGF acidic-dependent Cell Proliferation and Neutralization by Human FGF R2 Antibody. Recombinant Human FGF R2a (IIIb) Fc Chimera (Catalog # 663-FR) inhibits Recombinant Human FGF acidic (Catalog # 232-FA) induced proliferation in the NR6R‑3T3 mouse fibroblast cell line in a dose-dependent manner (orange line). Inhibition of Recombinant Human FGF acidic (0.3 ng/mL) activity elicited by Recombinant Human FGF R2a (IIIb) Fc Chimera (6 ng/mL) is neutralized (green line) by increasing concentrations of Human FGF R2 (IIIb) Monoclonal Antibody (Catalog # MAB665). The ND50 is typically 2-8 µg/mL in the presence of heparin (10 µg/mL).

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Preparation and Storage

Reconstitute at 0.5 mg/mL in sterile PBS.
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: FGFR2

FGF R2 is a transmembrane tyrosine kinase that functions as a receptor for several FGF family proteins. The extracellular domain includes three ( alpha isoforms) or two ( beta isoforms) Ig-like domains. Alternative exon usage results in IIIb or IIIc isoforms that differ in their membrane proximal Ig-like domain.

Long Name
Fibroblast Growth Factor Receptor 2
Entrez Gene IDs
2263 (Human); 14183 (Mouse)
Alternate Names
BBDS; BEK; BFR-1; CD332 antigen; CD332; CEK3; CFD1; craniofacial dysostosis 1; EC 2.7.10; EC; ECT1; FGF R2; FGFR2; fibroblast growth factor receptor 2; FLJ98662; Jackson-Weiss syndrome; JWS; Keratinocyte growth factor receptorreceptor like 14; KGFR; KSAM; K-sam; soluble FGFR4 variant 4; TK14; TK25

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Citations for Human FGFR2 (IIIb) Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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  1. Alveolar cell fate selection and lifelong maintenance of AT2 cells by FGF signaling
    Authors: DG Brownfield, AD de Arce, E Ghelfi, A Gillich, TJ Desai, MA Krasnow
    Nature Communications, 2022-11-21;13(1):7137.
    Species: Mouse
    Sample Types: Whole Tissue
    Applications: IHC
  2. Translocation of fibroblast growth factor-10 and its receptor into nuclei of human urothelial cells.
    Authors: Kosman J, Carmean N, Leaf EM, Dyamenahalli K, Bassuk JA
    J. Cell. Biochem., 2007-10-15;102(3):769-85.
    Species: Human
    Sample Types: Whole Cells
    Applications: ICC


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