Tumor necrosis factor receptor superfamily member 18 (UniProt: Q9Y5U5; also known as Activation-inducible TNFR family receptor, Glucocorticoid-induced TNFR-related protein, CD357, TNFRSF18) is encoded by the TNFRSF18 (also known as AITR, GITR, UNQ319/PRO364) gene (Gene ID: 8784) in human. TNFRSF18 is a single pass membrane glycoprotein of the TNFR family. TNFRSF18 is synthesized with a signal peptide of 25 amino acids that is further processed. The mature form contains 3 TNFR-Cys repeats. It is expressed in lymph node, peripheral blood leukocytes and weakly in spleen and is up-regulated in peripheral mononuclear cells after antigen stimulation/lymphocyte activation. The soluble form of TNFESF18 lacks a transmembrane domain. TNFRSF18 binds to TRAF1, TRAF2, and TRAF3, but not to TRAF5 and TRAF6. TNFRSF18 is reported to be involved in interactions between activated T-lymphocytes and endothelial cells and in the regulation of T-cell receptor-mediated cell death. Ligation of TNFRSF18 is shown to activate NF-kappa B through TRAF2 and protect T cells from TCR activation-induced cell death.，官网链接：https://www.sigmaaldrich.cn/product/mm/mabf952 默克 科研、开发、生产。 作为生命科学行业的全球领先供应商，我们致力于为科研、生物技术开发和生产，以及制药药物疗法开发和生产提供各类解决方案和服务。

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