Human secreted GITR, Fc fusion protein, also known as Glucocorticoid-induced TNFR-Related Protein, Tumor Necrosis Factor Receptor Superfamily member 18, TNFRSF18, Activation-Inducible TNFR Family Receptor, AITR, and CD357, GenBank Accession No. NM_004195, a.a. 26-161 expressed in a HEK293 cell expression system. MW = 41.2 kDa (monomer). This protein runs at a higher MW by SDS-PAGE due to glycosylation.