Anti-Human FGF-9

Purified Recombinant Human FGF-9 (Accession # P31371)

This monoclonal antibody has been 0.2 µm filtered and lyophilized from modified Dulbecco's phosphate buffered saline (1X PBS) pH 7.2 - 7.3 containing 5.0% w/v trehalose with no calcium, magnesium or preservatives present.

The lyophilized antibody can be stored desiccated at -20°C to -70°C for up to twelve months. The reconstituted antibody can be stored for at least four weeks at 2-8°C. For long-term storage of the reconstituted antibody, aseptically aliquot into working volumes and store at -20°C to -70°C in a manual defrost freezer. Avoid repeated freeze thaw cycles. No detectable loss of activity was observed after six months.

Next Day Ambient

Neutralization: This antibody is useful for neutralization of Human FGF-9 bioactivity. The antibody dose required to neutralize 50% (ND₅₀) of the biological activity of Human FGF-9 (at 10 ng/ml) is 1-2 µg/ml.

Mouse Anti-Human Fibroblast Growth Factor 9 (FGF-9) (Clone 36912) recognizes an epitope on Human FGF-9. This monoclonal antibody was purified using multi-step affinity chromatography methods such as Protein A or G depending on the species and isotype.

Fibroblast growth factor 9 (glia-activating factor), also known as FGF9 is a glycosylated neurotrophic polypeptide highly expressed in brain.¹ It is a member of the fibroblast growth factor (FGF) family that possess broad mitogenic and cell survival activities, and are involved in a variety of biological processes, including embryonic development, cell growth, morphogenesis, tissue repair, tumor growth and invasion. This protein was isolated as a secreted factor that exhibits a growth-stimulating effect on cultured glial cells. In nervous system, this protein is produced mainly by neurons and may be important for glial cell development. FGF-9 has sequence similarity of approximately 30% to other members of the family of fibroblast growth factors.² It is highly related to FGF-16.
FGF-9 has been shown to mediate its effects by binding to FGF receptors. It efficiently activates the FGFR2c splice form of FGFR2 and the FGFR3b and FGFR3c splice isoforms of FGFR3.³ FGF-9 is a high affinity, heparin dependent ligand for FGFR3 and FGFR2 but not for FGFR1 and FGFR4.⁴

1. Imamura, T. et al. (1999)J Biol Chem 274: 29352
2. Miyamoto, M. et al. (1993)Molecular Cellular Biology 13: 4251
3. Santos-Ocampo, S. et al. (1996)Journal of Biological Chemistry 271: 1726
4. Hecht, D. et al. (1995)Growth Factors 12: 223