Loaded Human 4-1BBL-His on HIS1K Biosensor, can bind Cynomolgus 4-1BB-Fc with an affinity constant of <10^-3 nM as determined in BLI assay. (Regularly tested)

4-1BB/CD137/TNFRSF9 Protein, Cynomolgus, Recombinant (hFc) is expressed in HEK293 mammalian cells with C-Fc tag. The predicted molecular weight is 60 KDa and the accession number is A9YYE7.

Cynomolgus

HEK293 Cells

TNFRSF9,T-cell antigen ILA,T-cell antigen 4-1BB homolog,ILA,CDw137,CD137,4-1BB ligand receptor

Leu24-Gln186

Leu24-Gln186

Greater than 95% as determined by reducing SDS-PAGE. (QC verified)

Reconstitute the lyophilized protein in distilled water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing.

Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.

Tumor necrosis factor receptor superfamily member 9(TNFRSF9), also known as CD137 and 4-1BB, is an inducible T cell surface protein belonging to the tumor necrosis factor receptor superfamily. It is a single-pass type I membrane protein which contains 4 TNFR-Cys repeats. The human and mouse proteins share 60% amino acid sequence identity. CD137 is expressed by mesenchymal cells, including endothelial cells, chondrocytes, and cells of the central nervous system. CD137 is also broadly expressed by cells of the human immune system, is broadly expressed by cells of the human immune system, including activated CD8+ and CD4+ T cells, activated natural killer (NK) cells, follicular dendritic cells (FDCs) and monocytes. CD137 has diverse roles in the immune response, the one key function is to promote the survival of both T cells and dendritic cells by binding the cognate ligand CD137L (4-1BBL).