Frizzled-4 Antibody

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Frizzled‑4 was detected in immersion fixed frozen sections of embryonic mouse neuronal tissue (E11) using 15 µg/mL Goat Anti-Mouse Frizzled‑4 Antigen Affinity-purified Polyclonal Antibody ...read more

Product Details

Summary
Reactivity MuSpecies Glossary
Applications WB, IHC
Clonality
Polyclonal
Host
Goat
Conjugate
Unconjugated
Concentration
LYOPH

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Frizzled-4 Antibody Summary

Immunogen
Mouse myeloma cell line NS0-derived recombinant mouse Frizzled-4
Phe37-Glu180
Accession # Q8BLL2
Specificity
Detects mouse Frizzled-4 in direct ELISAs and Western blots. In direct ELISAs, approximately 5% cross-reactivity with recombinant mouse (rm) Frizzled-8 and less than 2% cross-reactivity with rmFrizzled-3 and rmFrizzled-7 is observed.
Source
N/A
Isotype
IgG
Clonality
Polyclonal
Host
Goat
Gene
FZD4
Purity
Immunogen affinity purified
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.

Applications/Dilutions

Dilutions
  • Western Blot 0.1 ug/mL
  • Immunohistochemistry 5-15 ug/mL
Publications
Read Publications using
AF194 in the following applications:

Packaging, Storage & Formulations

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.
Buffer
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.
Preservative
No Preservative
Concentration
LYOPH
Purity
Immunogen affinity purified
Reconstitution Instructions
Reconstitute at 0.2 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Frizzled-4 Antibody

  • CD344 antigen
  • CD344
  • EVR1
  • exudative vitreoretinopathy 1
  • FEVR
  • frizzled (Drosophila) homolog 4
  • frizzled homolog 4 (Drosophila)
  • Frizzled4
  • Frizzled-4
  • Fz-4
  • FZD4
  • FZD4S
  • FzE4
  • GPCR
  • hFz4
  • MGC34390
  • WNT receptor frizzled-4

Background

Frizzled-4, designated CD344, is a 7-transmembrane glycoprotein of the Frizzled family within the G-protein coupled receptor superfamily (1, 2). Frizzled proteins function as receptors for Wnt proteins and can activate canonical Wnt/beta-catenin signaling as well as planar cell polarity and calcium flux pathways (1). Frizzled-4 is particularly important in angiogenic Wnt pathway signaling (1, 5). Frizzleds contain a divergent N-terminal signal peptide, a highly conserved ~120  amino acid (aa) cysteine-rich domain (CRD), a variable length linker region, seven transmembrane domains, and a variable-length C-terminal tail (1). The mouse Frizzled-4 cDNA encodes 537 aa with a 36 aa signal sequence and a 186 aa N-terminal extracellular sequence (4). The portion expressed includes aa 37-180, and shares 93%, 94%, 90%, 89%, and 88% identity with human, rat, equine, bovine and canine Frizzled-4, respectively. This portion competes for Wnt binding with endogenous receptors. In humans, a 122 aa soluble form that diverges at aa 95 is proposed to be a positive regulator of Wnt signaling pathways (5). Frizzled-4 is unusual in binding a non-wnt ligand, Norrin, in addition to binding Wnt ligands (1, 3, 6). Norrin binds the Frizzled-4 CRD, activates Wnt signaling pathways and uses LRP5/6 as co-receptors (3, 6). Deletion of either Frizzled-4 or Norrin in mice results in a similar phenotype including malformation of vasculature in the retina, cerebellar degeneration, and loss of hair cells in the inner ear (1, 3, 7). In humans, blindness due to familial exudative vitreoretinopathy (FEVR) is associated with mutations producing loss of function of Frizzled-4 or Norrin, designated EVR1 and EVR2, respectively (1, 3, 8). Frizzled-4 expression has been found in many tissues, including mouse ovary, where it influences corpus luteum vasculogenesis and is necessary for fertility (4, 9).

  1. Huang, H-C. and P.S. Klein (2004) Genome Biol. 5:234.
  2. Parmalee, N.L. and J. Kitajewski (2008) Curr. Drug Targets 9:558.
  3. Xu, Q. et al. (2004) Cell 116:883.
  4. Wang, Y. et al. (1996) J. Biol. Chem. 271:4468.
  5. Sagara, N. et al. (2001) Biochem. Biophys. Res. Commun. 282:750.
  6. Smallwood, P.M. et al. (2007) J. Biol. Chem. 282:4057.
  7. Wang, Y. et al. (2001) J. Neurosci. 21:4761.
  8. Robitaille, J. et al. (2002) Nat. Genet. 32:326.
  9. Hsieh, M. et al. (2005) Biol. Reprod. 73:1135.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Biotin BAF194

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Bioinformatics

Gene Symbol FZD4
Uniprot