• Species Reactivity

  Mouse

• Specificity

  Detects mouse Wnt-9b in direct ELISAs and Western blots. In Western blots, less than 5% cross-reactivity with recombinant human (rh) Wnt‑2, rhWnt-9a, recombinant mouse (rm) Wnt‑1, rmWnt-2b, rmWnt-3a, rmWnt-4, rmWnt‑5a, rmWnt-5b, rmWnt-11, and rmWnt-16 is observed.

• Source

  Polyclonal Goat IgG

• Purification

  Antigen Affinity-purified

• Immunogen

  E. coli-derived recombinant mouse Wnt‑9b    
  Ala46-Glu90, Lys228-Tyr298    
  Accession # O35468

• 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

  0.1 µg/mL

  Recombinant Mouse Wnt‑9b (Catalog # )

• 
  

• Immunohistochemistry

  5-15 µg/mL

  See below

• 
  

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

Data Examples

Preparation and Storage

• Reconstitution

  Reconstitute at 0.2 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: Wnt-9b

Mouse Wnt-9b, previously called Wnt-14b or Wnt-15, is one of about 19 vertebrate members of the Wingless-type MMTV integration site (Wnt) family of highly conserved, cysteine-rich secreted glycoproteins important for normal developmental processes (1‑3). Wnts mainly transduce signals by binding to receptors of the Frizzled family, in conjunction with a coreceptor of the low-density lipoprotein receptor-related protein family (LRP-5 or -6) (1, 2). The 359 aa mouse Wnt-9b precursor contains a 336 aa mature region with 24 conserved cysteines (3). Mature mouse Wnt-9b shares 93%, 98%, 92%, 92% and 91% aa identity with human, rat, canine, equine and bovine Wnt-9b, respectively. It is evolutionarily related to Wnt-9a and Wnt-3, which share 63% and 32% aa identity, respectively (4). Wnt-9b mRNA is expressed in late embryos and in adult kidney, with lesser amounts in brain and liver (3, 4). It appears to direct mesenchymal-to-epithelial transition in the kidney and other tissues (5). During kidney development, it is expressed in the ureteric bud and induces mesonephric and metanephric tubulogenesis, nephron development, and caudal extension of the Mullerian duct, acting upstream of Wnt-4 (5‑7). Induction is dependent on beta -catenin activity, implicating the canonical signaling pathway (7). Mice devoid of Wnt-9b die shortly after birth due to kidney agenesis, while low expression results in small kidneys with fewer nephrons (1, 5, 6). Mutations of Wnt-9b also cause incompletely penetrant cleft lip and palate in mice, indicating its involvement with facial midline morphogenesis (8, 9). It has weak transforming activity compared to other transforming Wnts (4).

• References:

1. .

2. Logan, C. Y. and R. Nusse (2004) Annu. Rev. Cell Dev. Biol. 20:781.

3. Kirikoshi, H. and  M. Katoh (2002) Int. J. Mol. Med. 9:135.

4. Qian, J. et al. (2003) Genomics 81:34.

5. Carroll, T. J. et al. (2005) Dev. Cell 9:283.

6. Merkel, C. E. et al. (2007) Pediatr. Nephrol. 22:1825.

7. Park, J-S. et al. (2007) Development 134:2533.

8. Lan, Y. et al. (2006) Dev. Dyn. 235:1448.

9. Juriloff, D. M. and  M. J. Harris (2008) Birth Defects Res. A Clin. Mol. Teratol. 82:63.

• Long Name:

  Wingless-type MMTV Integration Site Family, Member 9b

• Entrez Gene IDs:

  7484 (Human); 22412 (Mouse); 303586 (Rat)

• Alternate Names:

  Protein Wnt-14b; wingless-type MMTV integration site family, member 15; wingless-type MMTV integration site family, member 9B; Wnt-14b; WNT14Bprotein Wnt-9b; Wnt-15; WNT15Protein Wnt-15; Wnt9b; Wnt-9b