Osteoprotegerin (TNFRSF11B)
(Tumor Necrosis Factor Receptor Superfamily, Member 11b (TNFRSF11B))
Reactivity
Mouse
Detection Method
Colorimetric
Method Type
Sandwich ELISA
Detection Range
7.8-500 pg/mL
Minimum Detection Limit
7.8 pg/mL
Application
ELISA
Purpose
This immunoassay kit allows for the in vitro quantitative determination of mouse Osteoprotegerin, OPG concentrations in serum, plasma and other biological fluids.
Sample Type
Plasma, Serum
Analytical Method
Quantitative
Specificity
This assay recognizes recombinant and natural mouse OPG.
Cross-Reactivity (Details)
No significant cross-reactivity or interference was observed.
Sensitivity
< 3.9 pg/mL The sensitivity of this assay, or Lower Limit of Detection (LLD) was defined as the lowest detectable concentration that could be differentiated from zero.
Characteristics
Mus musculus,Mouse,Tumor necrosis factor receptor superfamily member 11B,Osteoclastogenesis inhibitory factor,Osteoprotegerin,Tnfrsf11b,Ocif,Opg
TNFRSF11B
Reactivity: Human
AA 22-401
Colorimetric
Sandwich ELISA
93.7-6000 pg/mL
Cell Culture Supernatant, Plasma (EDTA), Plasma (heparin), Saliva, Serum, Urine
Sample Volume
100 μL
Plate
Pre-coated
Protocol
The microtiter plate provided in this kit has been pre-coated with an antibody specific to OPG. Standards or samples are then added to the appropriate microtiter plate wells with a biotin-conjugated polyclonal antibody preparation specific for OPG and Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. Then a TMB substrate solution is added to each well. Only those wells that contain OPG, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of a sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The concentration of OPG in the samples is then determined by comparing the O.D. of the samples to the standard curve. 2
Restrictions
For Research Use only
Storage
4 °C/-20 °C
Storage Comment
The Standard, Detection Reagent A, Detection Reagent B and the 96-well strip plate should be stored at -20 °C upon being received. The other reagents can be stored at 4 °C.
Osteoprotegerin, also known as osteoclastogenesis inhibitory factor (OCIF), is a cytokine and a member of the tumor necrosis factor (TNF) receptor superfamily. It is a basic glycoprotein comprising 401 amino acid residues arranged into 7 structural domains. It is found as either a 60 kDa monomer or 120 kDa dimer linked by disulfide bonds.Osteoprotegerin inhibits the differentiation of macrophages into osteoclasts and also regulates the resorption of osteoclasts in vitro and in vivo. Osteoprotegerin is a RANK homolog, and works by binding to RANK ligand on osteoblast/stromal cells, thus blocking the RANK-RANK ligand interaction between osteoblast/stromal cells and osteoclast precursors. This has the effect of inhibiting the differentiation of the osteoclast precursor into a mature osteoclast. Recombinant human osteoprotegerin specifically acts on bone, increasing bone mineral density and bone volume. Osteoprotegerin has been used experimentally to decrease bone resorption in women with postmenopausal osteoporosis and in patients with lytic bone metastases. Osteoprotegerin production is stimulated in vivo by the female sex hormone estrogen,as well as the experimental osteoporosis drug, strontium ranelate.