CD32 is a surface receptor protein and part of a large population of B cell co-receptors, which act to modulate signaling. It has a low-affinity for IgG antibodies and down-regulates antibody production in the presence of IgG. This feedback loops essentially lowers the production of IgG produced by B cells when there is a surplus in the body.
Sample Type:Cell culture supernates, serum and plasma (heparin, EDTA)
Intended Use:For quantitative detection of human CD32 in cell culture supernates, serum and plasma (heparin, EDTA).
Sensitivity:<10pg/ml
Range:46.9-3000pg/ml
Specificity:Natural and recombinant human CD32
Test Principle:This human CD32 BioAssay™ ELISA Kit was based on standard sandwich enzyme-linked immune-sorbent assay technology. A monoclonal antibody from mouse specific for CD32 has been precoated onto 96-well plates. Standards(NSO, A46-P217) and test samples are added to the wells, a biotinylated detection polyclonal antibody from goat specific for CD32 is added subsequently and then followed by washing with PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with PBS or TBS buffer. HRP substrate TMB was used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the human CD32 amount of sample captured in plate.
Kit Components:96-well plate precoated with human CD32 antibody, 1Lyophilized recombinant human CD32 standard, 10ng/tube×2Biotinylated human CD32 antibody, 130ul (dilution 1:100)Avidin-Biotin-Peroxidase Complex (ABC), 130ul (dilution 1:100)Sample diluent buffer, 30mlAntibody diluent buffer, 12mlABC diluent buffer, 12mlTMB color developing agent, 10mlTMB stop solution, 10ml
Storage and Stability:Store powder at 4°C liquid at -20°C. Store other components at 4°C. Stable for at least 6 months For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
