CD137 (4-1BB), a member of the tumor necrosis factor receptor superfamily, is a type I transmembrane glycoprotein expressed on the cell surface of activated splenic T cells and thymocytes. The functions of CD137 in T lymphocytes include regulating activation, proliferation and apoptosis. CD137 and CD28 are costimulatory molecules of T cell activation. Costimulatory molecules are important in initiating anti-tumor immune responses. CD137 plays an important role in regulating T-cell-dependent immune responses. Expression of CD137 correlates negatively with lymphocyte proliferation and positively with the degree of activation-induced cell death caused by mitogen overstimulation. In monocytes, CD137 induces activation, promotes adherence and prolongs survival. The LOB12.3 antibody is an agonistic antibody that has been shown to stimulate 4-1BB signaling and delay tumor growthin vivowhen administered in combination with immune checkpoint inhibitors.
Formulation
1 mg/ml in 1X PBS; BSA free, sodium azide free
Host
Rat
Immunogen Region
A murine CD137 human Fc fusion protein was used as the immunogen for the CD137 antibody.
Isotype
Rat IgG2a, kappa
Species Reactivity
Mouse
Note
Optimal dilution of the antibody should be determined by the researcher.
Uniprot
P20334
Format
Purified
Purity
Protein G affinity chromatography
Storage
Store the CD137 antibody at 2-8oC (with azide) or aliquot and store at -20oC or colder (without azide).