Description
Principle of the assay: mouse BAFF ELISA Kit was based on standard sandwich enzyme-linked immune-sorbent assay technology. A monoclonal antibody from rat specific for BAFF has been precoated onto 96-well plates. Standards(NSO,A127-L309) and test samples are added to the wells, a biotinylated detection polyclonal antibody from goat specific for BAFF 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 mouse BAFF amount of sample captured in plate.
Background: B-cell activating factor (BAFF) also known as tumor necrosis factor ligand superfamily member 13B is a protein that in humans is encoded by the TNFLSF13B gene.1,2 BAFF is a cytokine that belongs to the tumor necrosis factor(TNF) ligand family. This cytokine is a ligand for receptors TNFRSF13B/TACI, TNFRSF17/BCMA, and TNFRSF13C/BAFFR. This cytokine is expressed in B cell lineage cells, and acts as a potent B cell activator. It has been also shown to play an important role in the proliferation and differentiation of B cells.3All these ligands act asheterotrimers (i.e. three of the same molecule) interacting with heterotrimeric receptors4, although BAFF has beenknown to be active as either a hetero- or homotrimer.5 The standard used in this kit is recombinant mouse solubleBAFF (A127-L309) with molecular weight 23.2KDa