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Recombinant Mouse Frizzled-9 Fc Chimera Protein, CF

Bio-Techne includes R&D Systems | Catalog # 2440-FZ

Catalog #
Size / Price

Key Product Details



Accession #

Structure / Form

Disulfide-linked homodimer





Product Specifications


Chinese Hamster Ovary cell line, CHO-derived mouse Frizzled-9 protein
Mouse Frizzled-9
Accession # Q9R216
N-terminus C-terminus


>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.

Endotoxin Level

<0.01 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis


Predicted Molecular Mass

45 kDa (monomer)


58-66 kDa, reducing conditions


Measured by its ability to bind biotinylated recombinant mouse Wnt-3a in a funtional ELISA with an estimated Kd <10 nM.

Formulation, Preparation and Storage

Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitute at 500 μg/mL in PBS.

Reconstitution Buffer Available:
Size / Price
Shipping The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Frizzled-9

Frizzled-9 (Fzd9, previously called Fzd3) belongs to the Frizzled family of seven-transmembrane glycoprotein receptors, which are signaling receptors for the family of secreted Wnt ligands (1-3). Mature mouse Frizzled-9 consists of a 207 amino acid (aa) N-terminal extracellular domain (ECD), the 7TM region, and a 62 aa C-terminal cytoplasmic domain with a PDZ binding motif. The ECD includes a cysteine-rich region that binds Wnts and is highly conserved among Frizzleds. Within aa 23-186 of the N-terminal ECD, mouse Frizzled-9 shares 97% and 100% aa identity with human and rat Frizzled-9, respectively. The human Frizzled-9 gene maps to a large region that is deleted in Williams-Beuren syndrome, a developmental disorder affecting personality and cognition (2). Frizzled-9 mRNA is expressed in the central nervous system and myotomes during development, and it persists in the hippocampus throughout life (2-4). Adults also show expression in heart, testis, and skeletal muscle (2-4). Cellular expression is detected in proliferating neural precursors, B lymphocyte progenitors, differentiating osteoblasts, and developing myotubes of skeletal muscle (4-7). Mice lacking Frizzled-9 exhibit defects in learning, B lymphocyte development, and bone mineralization (4-6, 8). Frizzled-9 can signal through both canonical and non-canonical pathways (6, 9). Its binding to Wnt-7a promotes the activation of PPAR gamma, expression of Cadherin and Sprouty, and reversal of non-small cell lung cancer cell transformation (10-12).


  1. Dijksterhuis, J.P. et al. (2014) Br. J. Pharmacol. 171:1195.
  2. Wang, Y.K. et al. (1997) Hum. Mol. Genet. 6:465.
  3. Wang, Y.K. et al. (1999) Genomics 57:235.
  4. Zhao, C. et al. (2005) Development 132:2917.
  5. Ranheim, E.A. et al. (2005) Blood 105:2487.
  6. Albers, J. et al. (2011) J. Cell Biol. 192:1057.
  7. Aviles, E.C. et al. (2014) Front. Cell. Neurosci. 8:110.
  8. Heilmann, A. et al. (2013) PLoS One 8:e84232.
  9. Karasawa, T. et al. (2002) J. Biol. Chem. 277:37479.
  10. Winn, R.A. et al. (2005) J. Biol. Chem. 280:19625.
  11. Winn, R.A. et al. (2006) J. Biol. Chem. 281:26943.
  12. Tennis, M.A. et al. (2010) Mol. Cancer Res. 8:833.

Alternate Names

CD349, Frizzled9, FZD9

Entrez Gene IDs

8326 (Human); 14371 (Mouse)

Gene Symbol



Additional Frizzled-9 Products

Product Documents for Recombinant Mouse Frizzled-9 Fc Chimera Protein, CF

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Recombinant Mouse Frizzled-9 Fc Chimera Protein, CF

For research use only