Peptide sequence: LRSQCMWPRE TQLLLEVPPS TEDARSCQFP EEERGERSAE EKGRLGDLWV Sequence homology: Human: 100%. 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