Recombinant Human CD27

CD27 is a tumor necrosis factor receptor. The protein encoded by this gene is a member of the TNF-receptor superfamily. This receptor is required for generation and long-term maintenance of T cell immunity. It exists as both a disulfide-linked dimer on the cell surface and as a soluble protein found in serum. It binds to ligand CD70 which is expressed on thymic stromal cells and a small subset of activated T cells and plays a key role in regulating B-cell activation and immunoglobulin synthesis. This receptor transduces signals that lead to the activation of NF-κB and MAPK8/JNK. Adaptor proteins TRAF2 and TRAF5 have been shown to mediate the signaling process of this receptor. CD27-binding protein (SIVA), a proapoptotic protein, can bind to this receptor and is thought to play an important role in the apoptosis induced by this receptor.