Cell Signaling Technology

Product Pathways - Development

Frizzled5 Antibody #3795

Applications Reactivity Sensitivity MW (kDa) Source
W IP H Transfected Only 50-65 Rabbit

Applications Key:  W=Western Blotting  IP=Immunoprecipitation
Reactivity Key:  H=Human
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.

Protocols

Specificity / Sensitivity

Frizzled5 Antibody detects transfected levels of total frizzled5 protein.

Source / Purification

Polyclonal antibodies are produced by immunizing animals with synthetic peptide corresponding to the amino acid sequence surrounding Ala549 of human frizzled5. Antibodies are purified by protein A and peptide affinity chromatography.

Western Blotting

Western Blotting

Western blot analysis of extracts from COS cells, mock transfected or transfected with human Frizzled5, using Frizzled5 Antibody.

Background

Frizzled (Fzd) belongs to the seven transmembrane-spanning G-protein-coupled receptor (GPCR) superfamily (1). Fzds have a large extracellular N-terminal region containing a cysteine-rich domain (CRD), which is involved in binding to Wnt proteins (1,2). The intracellular C-terminus binds to the PDZ domain of Dvl proteins, a major signaling component downstream of Fzd (3). Wnt proteins bind to Fzd and the co-receptors LRP5 or LPR6, and activate Wnt/β-catenin pathway through inhibiting phosphorylation of β-catenin by GSK3-β (4,5). In addition to this canonical Wnt/β-catenin pathway, some Wnt proteins can also activate the Fzd/Ca2+ pathway and Fzd/PCP (planar cell polarity) pathway (6,7). The mammalian Fzd subfamily has 10 members (Fzd1 to Fzd10) and they may mediate signaling through different pathways (8). Some Fzds can also bind to other secreted proteins, like Norrin and R-Spondin (9-11).

  1. Schulte, G. and Bryja, V. (2007) Trends Pharmacol Sci 28, 518-25.
  2. Hsieh, J.C. et al. (1999) Proc Natl Acad Sci USA 96, 3546-51.
  3. Wong, H.C. et al. (2003) Mol Cell 12, 1251-60.
  4. Zeng, X. et al. (2005) Nature 438, 873-7.
  5. Davidson, G. et al. (2005) Nature 438, 867-72.
  6. Fanto, M. and McNeill, H. (2004) J Cell Sci 117, 527-33.
  7. Kohn, A.D. and Moon, R.T. Cell Calcium 38, 439-46.
  8. Cadigan, K.M. and Liu, Y.I. (2006) J Cell Sci 119, 395-402.
  9. Xu, Q. et al. (2004) Cell 116, 883-95.
  10. Nam, J.S. et al. (2006) J Biol Chem 281, 13247-57.
  11. Hendrickx, M. and Leyns, L. (2008) Dev Growth Differ 50, 229-43.

Application References

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Companion Products

For Research Use Only. Not For Use In Diagnostic Procedures.

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