These 4-1BB ELISA kits are immunodetection tools for measuring the levels of 4-1BB in biological samples. 4-1BB is an alias of the human TNFRSF9 gene, which encodes the protein, TNF receptor superfamily member 9. Notably, 4-1BB is known to play a role in the apoptotic pathway and the regulation of cell proliferation, among other functions. The TNFRSF9 protein is described to be 255 amino acid residues in length and 27.9 kilodaltons in mass. It is localized to the membrane of the cell. In terms of tissue specificity, it is noted to be expressed on the surface of activated T-cells. This protein is known to be glycosylated. Other names for this target antigen include CD137.
The detection range for different 4-1BB ELISA kits can vary, with some assays measuring target concentrations as low as 6 pg/mL and as high as 300 ng/mL. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.