Tumor Necrosis Factor Receptor 2, Soluble (TNFRSF1B) Recombinant Protein

The protein encoded by this gene is a member of the TNF-receptor superfamily. This protein and TNF-receptor 1 form a heterocomplex that mediates the recruitment of two anti-apoptotic proteins, c-IAP1 and c-IAP2, which possess E3 ubiquitin ligase activity. The function of IAPs in TNF-receptor signalling is unknown, however, c-IAP1 is thought to potentiate TNF-induced apoptosis by the ubiquitination and degradation of TNF-receptor-associated factor 2, which mediates anti-apoptotic signals. Knockout studies in mice also suggest a role of this protein in protecting neurons from apoptosis by stimulating antioxidative pathways. [provided by RefSeq, Jul 2008]

TNF-R2: Receptor with high 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 blocks TNF-alpha-induced apoptosis, which suggests that it regulates TNF-alpha function by antagonizing its biological activity. Binds to TRAF2. Interacts with BMX. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Membrane protein, integral; Receptor, cytokine

Chromosomal Location of Human Ortholog: 1p36.22

Cellular Component: cell soma; perinuclear region of cytoplasm; plasma membrane; integral to membrane; extracellular region; nucleus; lipid raft

Molecular Function: protein binding; tumor necrosis factor receptor activity; ubiquitin protein ligase binding

Biological Process: tumor necrosis factor-mediated signaling pathway; DNA damage response, signal transduction resulting in induction of apoptosis; negative regulation of inflammatory response; immune response; inflammatory response; RNA destabilization; positive regulation of membrane protein ectodomain proteolysis; aging