Recombinant Human Frizzled-5 Fc Chimera (CHO-expressed), CF Summary
Details of Functionality
Measured by its binding ability in a functional ELISA. In a 100 µL reaction mixture containing biotinylated recombinant mouse Wnt-5a at 100 ng/mL and Recombinant Human Frizzled‑5 Fc Chimera dilutions, the concentration of Recombinant Human Frizzled‑5 Fc Chimera that produces 50% of the maximal binding response is found to be approximately 5‑20 ng/mL. Optimal concentrations should be determined by each laboratory for each application.
Source
Chinese Hamster Ovary cell line, CHO-derived human Frizzled-5 protein
Human Frizzled-5 (Ala27-Trp238) Accession # NP_003459
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin Note
<0.10 EU per 1 μg of the protein by the LAL method.
Applications/Dilutions
Dilutions
Bioactivity
Theoretical MW
50.1 kDa (monomer). Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
SDS-PAGE
60-68 kDa, reducing conditons
Publications
Read Publication using 1617-FZC in the following applications:
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.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS.
Purity
>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Reconstitution Instructions
Reconstitute at 200 μg/mL in PBS.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Recombinant Human Frizzled-5 Fc Chimera (CHO-expressed), CF
C2orf31
chromosome 2 open reading frame 31
DKFZP434E2135
frizzled (Drosophila) homolog 5
frizzled homolog 5 (Drosophila)
Frizzled5
Frizzled-5
Frz-5
FZ-5
FZD5
fzE5
HFZ5
MGC129692
seven-transmembrane receptor frizzled-5
Wnt receptor
Background
Frizzled-5 is an approximately 62 kDa 7-TM glycoprotein that is one of at least ten Frizzled family Wnt receptors (1, 2). Wnt engagement of Frizzled, with low density lipoprotein receptor-related proteins LRP-5 or LRP-6 acting as co‑receptors, stabilizes beta -catenin and promotes gene transcription that is important in development and tissue maintenance (1). Frizzleds can also signal through non-canonical pathways independently of LRPs (1). Mature human Frizzled-5 consists of a 212 amino acid (aa) extracellular domain (ECD), a 283 aa 7-TM region, and a 64 aa cytoplasmic domain with a PDZ binding motif (2, 3). The ECD includes a cysteine-rich region (CRD) that binds Wnts and is highly conserved among Frizzled proteins (1, 2, 4). Within the N-terminal ECD, human Frizzled-5 shares 95% aa sequence identity with mouse and rat Frizzled-5. Frizzled-5 is expressed in embryonic tissues (telencephalon, pituitary, thalamus, hypothalamus, eye, liver, spleen, lung, and kidney), in the adult retina, colon, and pancreatic islets, some cancer cell lines, human embryonic stem cells, and in some monocyte and lymphocyte populations (2-8). Frizzled-5 functions as a receptor for Wnt-5a, Wnt-9b, Wnt-10b, Wnt-2b, and Wnt-7a (3, 5, 9, 10). It plays a role in the maintenance of yolk sac and placental vasculature (ishikawa) and in the regression of vitreous vasculature during eye development (5, 6, 11). It mediates the synaptogenic effect of Wnt-7a, contributes to the development of neuronal polarity, and is required for neuronal survival in the thalamus (3, 12, 13). In macrophages and monocytes, Frizzled-5 signaling induces the production of inflammatory cytokines (7, 8).
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Saitoh T. et al. (2001) Int. J. Oncol. 19:105.
Liu, C. et al. (2008) J. Neurosci. 28:5641.
Katoh, Y. and M. Katoh (2007) Int. J. Oncol. 30:751.
Ishikawa, T. et al. (2001) Development 128:25.
Burns, C.J. et al. (2008) Dev. Dyn. 237:1614.
Periera, C. et al. (2008) Arterioscler. Thromb. Vasc. Biol. 28:504.
Blumenthal, A. et al. (2006) Blood 108:965.
He, X. et al. (1997) Science 275:1652.
Caricasole, A. et al. (2003) J. Biol. Chem 278:37024.
Zhang, J. et al. (2008) Invest. Ophthalmol. Vis. Sci. 49:5561.
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