Description: The TKS-1 monoclonal antibody reacts with mouse 4-1BB Ligand (4-1BBL), a type II transmembrane protein and a member of the tumor necrosis factor superfamily. 4-1BBL is expressed by activated antigen presenting cells including B cells and macrophages. Interaction of 4-1BBL with 4-1BB (CDw137) is reported to deliver a costimulatory signal important in the T-APC interaction.
Applications Reported: The TKS-1 antibody has been reported for use in flow cytometric analysis.
Applications Tested: The TKS-1 antibody has been tested by flow cytometric analysis of resting and 2-3 day (IgM & CD40)-activated mouse splenocytes. This can be used at less than or equal to 1 µg per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.
Filtration: 0.2 µm post-manufacturing filtered.
CD137 ligand (CD137L) is a type II membrane protein and part of the TNF superfamily. CD137L is a co-stimulatory molecule that is expressed on antigen presenting cells (DCs, monocytes/macrophages, B cells) and is upregulated upon activation. Its receptor, CD137/4-1BB, is found on a variety of cells, including inflamed endothelial cells, where its expression enhances extravasation of CD137L expressing monocytes. Activated T cells also express CD137, and engagement with CD137L enhances T cell proliferation, IL-2 secretion, survival, and cytotoxic activity. CD137L is also expressed on a majority of B-cell lymphomas, including mantle cell lymphoma, follicular lymphoma, and diffuse large B-cell lymphoma (but it is lacking on Hodgkin lymphoma and T-cell lymphoma). CD137L is also expressed in carcinoma cell lines, and is thought to be involved in T cell-tumor cell interactions.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: 4 1 BB Ligand; 4 1 BBL; 4-1BB ligand; 4-1BBL; 41BB Ligand; 41BBL; CD 137 Ligand; CD 137L; CD137 Ligand; CDw137L; TNFRSF9; Tumor necrosis factor ligand superfamily member 9
Gene Aliases: 4-1BB-L; 4-1BBL; AI848817; Cd137l; Cd157l; Ly63l; Tnfsf9
UniProt ID: (Mouse) P41274
Entrez Gene ID: (Mouse) 21950