Mouse Osteoprotegerin/TNFRSF11B Antibody

Catalog # Availability Size / Price Qty
MAB459
MAB459-SP
Product Details
Citations (2)
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Mouse Osteoprotegerin/TNFRSF11B Antibody Summary

Species Reactivity
Mouse
Specificity
Detects mouse Osteoprotegerin/TNFRSF11B in direct ELISAs and Western blots. In Western blots, no cross-reactivity with recombinant mouse (rm) TNF RI, rmTNF RII, rmFas, rmGITR, recombinant human (rh) HVEM, rhNGFR, rhDR6, rhDR3, rh4-1BB, rmCD27, rmCD30, rmCD40, rhOPG, or rmRANK is observed.
Source
Monoclonal Rat IgG2A Clone # 110517
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Mouse myeloma cell line NS0-derived recombinant mouse Osteoprotegerin/TNFRSF11B
Glu22-Leu401
Accession # O08712
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
1 µg/mL
Recombinant Mouse Osteoprotegerin/TNFRSF11B Fc Chimera (Catalog # 459-MO)
under non-reducing conditions only

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

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
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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: Osteoprotegerin/TNFRSF11B

Osteoprotegerin (OPG), also called OCIF (osteoclastogenesis inhibitory factor) is a secreted 55-60 kDa protein that regulates bone density (1-3). As a member of the tumor necrosis factor receptor (TNFR) superfamily of proteins, it is designated TNFRSF11B (1-4). Mouse OPG cDNA encodes 401 amino acids (aa) including a 21 aa signal peptide and a 380 aa mature soluble protein with four TNFR domains, two death domains and a heparin-binding region (4). The cysteine-rich TNFR domains are essential for ligand interaction, while a cysteine at the C-terminus mediates homodimerization (4). Mature mouse OPG shares 86%, 94%, 86%, 86% and 83% amino acid sequence identity with human, rat, equine, canine and bovine OPG, respectively. OPG is widely expressed and constitutively released as a homodimer by mesenchymal stem cells, fibroblasts and endothelial cells (1, 2, 5, 7). Regulation of its expression by estrogen, parathyroid hormone and cytokines is complex and changes with age (2). OPG has been called a decoy receptor for the TNF superfamily ligands, TRANCE (tumor necrosis factor-related activation-induced cytokine), also called RANK L (receptor activator of NF kappa B ligand), and TRAIL (TNF-related apoptosis-inducing ligand), which also bind TNF family receptors RANK and TRAIL receptors 1‑4, respectively (2, 6). TRAIL decreases the release of OPG from cells that express it, while OPG inhibits TRAIL-induced apoptosis (5, 6). Expression of RANK L on the cell surface, and thus its ability to stimulate osteoclastogenesis, is regulated by OPG by intracellular and extracellular mechanisms (7). Within osteoblasts, interaction of the basic domain of OPG with RANK L in the Golgi inhibits RANK L secretion (7). Extracellularly, OPG binding to RANK L results in
clathrin‑mediated internalization and degradation of both proteins (7, 8). Binding of OPG by syndecan-1 heparin sulfates on multiple myeloma cells also results in OPG internalization and degradation, contributing to bone loss (8, 9). OPG deficiency can cause juvenile Paget’s disease in humans, and insufficient OPG to balance with RANK L and RANK can produce osteoporosis and vascular calcification in both mice and humans (2, 10, 11).

References
  1. Simonet, W.S. et al. (1997) Cell 89:309.
  2. Trouvin, A-P. and V. Goeb 2010) Clin. Interv. Aging 5:345.
  3. Yasuda, H. et al. (1998) Proc. Natl. Acad. Sci. USA 95:3597.
  4. Yamaguchi, K. et al. (1998) J. Biol. Chem. 273:5117.
  5. Corallini, F. et al. (2010) J. Cell. Physiol. Dec. 6 [Epub ahead of print]
  6. Emery, J.G. et al. (1998) J. Biol. Chem. 273:14363.
  7. Aoki, S. et al. (2010) J. Bone Miner. Res. 25:1907.
  8. Tat, S.K. et al. (2006) Bone 39:706.
  9. Standal, T. et al. (2002) Blood 100:3002.
  10. Whyte, M.P. et al. (2002) N. Engl. J. Med. 347:175.
  11. Van Campenhout, A. and J. Golledge (2009) Atherosclerosis 204:321.
Entrez Gene IDs
4982 (Human); 18383 (Mouse)
Alternate Names
OCIF; OCIFMGC29565; OPG; OPGtumor necrosis factor receptor superfamily member 11B; Osteoclastogenesis inhibitory factor; Osteoprotegerin; TNFRSF11B; TR1; tumor necrosis factor receptor superfamily, member 11b

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Citations for Mouse Osteoprotegerin/TNFRSF11B Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

2 Citations: Showing 1 - 2
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  1. The RANKL signaling axis is sufficient to elicit ductal side-branching and alveologenesis in the mammary gland of the virgin mouse.
    Authors: Fernandez-Valdivia R, Mukherjee A, Ying Y, Li J, Paquet M, DeMayo FJ, Lydon JP
    Dev. Biol., 2009-01-23;328(1):127-39.
    Species: Mouse
    Sample Types: Cell Lysates
    Applications: Western Blot
  2. Expression of RANKL and OPG correlates with age-related bone loss in male C57BL/6 mice.
    Authors: Cao J, Venton L, Sakata T, Halloran BP
    J. Bone Miner. Res., 2003-02-01;18(2):270-7.
    Species: Mouse
    Sample Types: Cell Culture Supernates
    Applications: Western Blot

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