Uncoated Mouse TNFRSF9 ( Tumor Necrosis Factor Receptor Superfamily;Member 9 ) ELISA Kit (E-UNEL-M0169)

This ELISA kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to TNFRSF9 . Standards or samples are added to the micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for TNFRSF9 and Avidin-Horseradish Peroxidase (HRP) conjugate are added successively to each micro plate well and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain TNFRSF9 , biotinylated detection antibody and Avidin-HRP conjugate will appear blue in color. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The OD value is proportional to the concentration of TNFRSF9 . You can calculate the concentration of TNFRSF9 in the samples by comparing the OD of the samples to the standard curve.

CD137 is a 39 kD TNF-receptor superfamily member also known as 4-1BB,TNFRSF9,Ly-63,and ILA (Induced by Lymphocyte Activation).  CD137 is expressed as monomers,dimers,and tetramers on activated T and B cells.  Interaction of CD137 with its ligand,4-1BBL (CD137L),is important in T-B cell costimulation.