Tumor necrosis factor receptor superfamily member 1B (TNFRSF1B)

Receptor with higher affinity for TNFSF2/TNF-alpha and approximately 5-fold lower affinity for homotrimeric TNFSF1/lymphotoxin-alpha. The TRAF1/TRAF2 complex recruits the apoptotic suppressors BIRC2 and BIRC3 to TNFRSF1B/TNFR2.

This receptor mediates most of the metabolic effects of TNF-alpha. Isoform 2 cubes TNF-alpha-induced apoptosis, which suggests that it regulates TNF-alpha function by antagonizing its biological activity.