>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
<0.10 EU per 1 μg of the protein by the LAL method.
Measured by its ability to inhibit Fas Ligand-induced apoptosis of Jurkat human acute T cell leukemia cells. Cheng, J. et al. (1994) Science 263:1759. The ED50 for this effect is typically 15‑75 ng/mL in the presence of 20 ng/mL
Human Fas Ligand/TNFSF6 (Catalog # 126-FL).
Recombinant Cynomolgus Monkey DcR3/TNFRSF6B Fc Chimera (Catalog # 9297-DC) inhibits Recombinant Human Fas Ligand/TNFSF6 (Catalog # 126-FL) induced apoptosis of Jurkat human acute T cell leukemia cells. The ED50 for this effect is 15-75 ng/mL.
DcR3 (Decoy Receptor 3), also known as TR6 and TNFRSF6B is a 35-40 kDa secreted member of the TNF Receptor superfamily (1). Mature cynomolgus DcR3 contains four tandem TNFR cysteine-rich domains and shares 92% amino acid sequence identity with human DcR3. It binds to the TNF superfamily ligands Fas Ligand, TL1A, and LIGHT (2-5) and interferes with their respective interactions with Fas, DR3, or HVEM and Lymphotoxin beta R (2-4). It blocks apoptosis triggered through either Fas Ligand, TL1A, or LIGHT (2, 3, 5, 6). DcR3 is up-regulated in a variety of cancers and enhances tumor cell immune evasion (2, 3, 7). It also promotes immune suppression by inducing dendritic cell apoptosis (8), inhibiting NK cell and CD8+ T cell activity (2, 4), and inhibiting the production of inflammatory cytokines during viral infection or autoimmunity (9, 10). In humans, proteolytic removal of the C-terminal 53 amino acids generates a shortened DcR3 that retains the ability to block LIGHT but not Fas Ligand induced apoptosis (11). DcR3 can also induce osteoclast formation from monocytes (12).
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Decoy Receptor 3
Entrez Gene IDs:
8771 (Human); 107126607 (Cynomolgus Monkey)
DcR3/TNFRSF6B; DCR3Decoy receptor for Fas ligand; Decoy receptor 3; M68; M68DJ583P15.1.1; TNFRSF6B; TR6; TR6DcR3; tumor necrosis factor receptor superfamily member 6B; tumor necrosis factor receptor superfamily, member 6b, decoy