• Species Reactivity

  Human, Mouse

• Specificity

  Detects human and mouse Frizzled-1 in direct ELISAs and Western blots. In direct ELISAs, approximately 30% cross‑reactivity with recombinant mouse (rm) Frizzled-9 is observed and no cross-reactivity with recombinant human (rh) Frizzled-5, rmFrizzled 2, 3, 4, 6, 7, 8, or rhMFRP is observed.

• Source

  Monoclonal Rat IgG    _2A Clone # 162531

• Purification

  Protein A or G purified from hybridoma culture supernatant

• Immunogen

  Mouse myeloma cell line NS0-derived recombinant mouse Frizzled‑1    
  Gln72-His248 (Met122Ile)    
  Accession # O70421

• 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.

• Label

  Unconjugated

Applications

• Recommended    
  Concentration

  Sample

• Western Blot

  1 µg/mL

  Recombinant Mouse Frizzled-1 Fc Chimera (Catalog # )

• 
  

• Flow Cytometry

  2.5 µg/10    ⁶ cells

  HEK293 human cell line

• 
  

• CyTOF-ready

  Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

• 
  

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

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: Frizzled-1

The Wnt genes encode a large family of glycoproteins that are essential in development and tissue maintenance (1). Members of the Frizzled family of proteins serve as receptors for the Wnt signaling pathway (2). Ten mouse and human Frizzled genes have been identified to date. The predicted structure of Frizzled proteins is similar among all family members, containing a divergent N-terminal signal peptide, a highly conserved extracellular cysteine-rich domain (CRD), a variable-length linker region, a seven-pass transmembrane region, and a variable-length C-terminal cytoplasmic domain. The CRD comprises 642 amino acids and shares 95% identity with the human orthologue. Frizzled-1 mRNA has been detected in relatively large amounts in adult heart, placenta, lung, kidney, pancreas, prostate, and ovary, and in fetal lung and kidney (3). Several Frizzled-dependent signaling pathways exist (2). Their activation depends on the Wnt ligand and the cell context. Members of the low density lipoprotein receptor-related protein (LRP) are co-receptors for the Wnt ligands. LRP5/6 serve as co-receptors in the Wnt/Frizzled canonical pathway that alters gene expression via the stabilization of beta -catenin (4, 5). LRP1 may down regulate Wnt-3a/Frizzled-1 signaling in the canonical pathway by sequestering Frizzled-1 (6). Frizzled-1 is one of the purported Wnt-10b receptors whose signaling inhibits adipogenesis in preadipocytes (7). Frizzled-1 may be part of a feedback mechanism to modulate the effects of BMP-2 in mesenchymal cells since upregulation of its expression by BMP-2 counteracts the effects of BMP-2 and Wnt-3a in inducing the expression of the osteoblast differentiation marker, alkaline phosphatase (8).

• References:

1. Wodarz, A. and R. Nusse (1998) Annu. Rev. Cell Dev. Biol. 14:59. 

2. Hsieh, J-C. (2004) Front. Biosci., 9:1333. 

3. Xu, L. et al. (2001) Matrix Biol. 2:147. 

4. Tamai, K. et al. (2000) Nature 407:530. 

5. Pinson, K. et al. (2000) Nature 407:535.

6. Zielberberg, A. et al. (2004) J. Biol. Chem. 279:17535.

7. Bennet, C. et al. (2002) J. Biol. Chem. 277:30998.

8. Roman-Roman, S. et al. (2004) J. Biol. Chem. 279:5725.

• Entrez Gene IDs:

  8321 (Human); 14362 (Mouse)

• Alternate Names:

  DKFZp564G072; FLJ95923; frizzled family receptor 1; frizzled homolog 1; frizzled, Drosophila, homolog of, 1; Frizzled1; Frizzled-1; fz-1; FZD1; fzE1; hFz1; seven transmembrane spanning receptor; Wnt receptor