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Tumor necrosis factor receptor superfamily member 18 (TNFRSF18), also called GITR or AITR is a protein that in humans is encoded by the TNFRSF18 gene. It is mapped to 1p36.33. This gene encodes a member of the TNF-receptor superfamily. The encoded receptor has been shown to have increased expression upon T-cell activation, and it is thought to play a key role in dominant immunological self-tolerance maintained by CD25 (+)CD4 (+) regulatory T cells. Knockout studies in mice also suggest the role of this receptor is in the regulation of CD3-driven T-cell activation and programmed cell death. Three alternatively spliced transcript variants of this gene encoding distinct isoforms have been reported.
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Protein Aliases: Activation-inducible TNFR family receptor; CD357; Glucocorticoid-induced TNFR-related protein; PRO364; TNF receptor superfamily activation-inducible protein; Tumor necrosis factor receptor superfamily member 18; tumor necrosis factor receptor superfamily, member 18; UNQ319
Gene Aliases: AITR; CD357; GITR; GITR-D; TNFRSF18; UNQ319/PRO364
UniProt ID: (Human) Q9Y5U5
Entrez Gene ID: (Human) 8784
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