FGF-3 Antibody [Unconjugated]


FGF-3 was detected in immersion fixed paraffin-embedded sections of human breast cancer tissue using 10 µg/mL Goat Anti-Human FGF-3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1206) overnight at 4 °C. ...read more
Recombinant Human FGF‑3 (Catalog # 1206-F3) stimulates proliferation in the the NR6R‑3T3 mouse fibroblast cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human FGF‑3 (0.3 ...read more

Product Details

Reactivity HuSpecies Glossary
Applications WB, IHC, B/N

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Catalog# & Formulation Size Price

FGF-3 Antibody [Unconjugated] Summary

E. coli-derived recombinant human FGF-3
Accession # NP_005238
Detects human FGF-3 in direct ELISAs and Western blots.
Purity Statement
Antigen Affinity-purified
Endotoxin Note
<0.10 EU per 1 μg of the antibody by the LAL method.
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.


  • Immunohistochemistry 5-15 ug/mL
  • Neutralization 1-4 ug/mL
  • Western Blot 0.1 ug/mL

Packaging, Storage & Formulations

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.
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.
No Preservative
Reconstitution Instructions
Reconstitute at 0.2 mg/mL in sterile PBS.


This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for FGF-3 Antibody [Unconjugated]

  • FGF3
  • FGF-3
  • fibroblast growth factor 3 (murine mammary tumor virus integration site (v-int-2) oncogene homolog)
  • fibroblast growth factor 3
  • HBGF-3
  • Hst
  • INT-2
  • mouse
  • oncogene INT2


Fibroblast Growth Factor 3 (FGF-3) belongs to the large FGF family which has at least 23 members (1, 2). All FGF family members are heparin-binding growth factors with a core 120 amino acid (aa) FGF domain that allows for a common tertiary structure. FGFs are expressed during embryonic development and in restricted adult tissues. They act on cells of mesodermal and neuroectodermal origin to regulate diverse physiologic functions including angiogenesis, cell growth, pattern formation, embryonic development, metabolic regulation, cell migration, neurotrophic effects and tissue repair (3, 4). Signaling receptors for FGFs are type I transmembrane receptor tyrosine kinases belonging to the Ig superfamily. Four distinct but related classes of FGF receptors, FGF R1, 2, 3, and 4, exist. Through alternative splicing, multiple isoforms for FGF R1, 2 and 3, with distinct ligand recognition profiles, are also generated (4).

The FGF-3 gene, originally designated int-2, was first identified as a proto-oncogene activated in mouse mammary tumors by proviral integration (2). Amplification of this gene has also been found frequently in human tumors. Human FGF-3 cDNA predicts a 239 aa precursor protein with a 17 aa signal peptide and a 222 aa secreted mature protein with one potential N-linked glycosylation site (1). Human and mouse FGF-3 share 88% aa sequence identity. The Xenopus and mammalian secreted FGF-3 are processed proteolytically at both the N- and C-terminus (5). FGF-3 binds with high-affinity to the IIIb isoforms of FGF R1 and FGF R2. FGF-3 also binds the IIIc isoform of FGF R2, but with lower affinity (6). FGF-3 has been implicated in the induction of inner ear development (7). Studies have suggested that FGF-3 and FGF-8 function synergistically in otic placode induction and during neuronal development to regulate dorsoventral axis formation (8-10). During development, the activities of FGF-3 and FGF-8 are regulated negatively by the sprouty family proteins and by Sef (similar expression to fgf genes), a transmebrane protein that shares intracellular sequence similarities with the IL‑17 receptor (10).

  1. Brookes, S. et al. (1989) Oncogene 4:429.
  2. Dickson, C. et al. (1989) Prog. Growth Factor Res. 1:123.
  3. Goldfarb, M. (1996) Cytokine and Growth Factor Reviews 7:311. 
  4. Green, P. et al. (1996) BioEssays 18:639.
  5. Antoine, M. et al. (2000) Cell Growth Differen. 11:593.
  6. Kohl, R. et al. (2002) J. Biol. Chem. 277:32760.
  7. Represa, J. et al. (1991) Nature 353:561.
  8. Maroon, H. et al. (2002) Development, 129:2099.
  9. Walshe, J. et al. (2002) Current Biol. 12:1117.
  10. Furthauer, M. et al. (2002) Nature Cell Biol. 4:170.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Gene Symbol FGF3