Purity ~98% (SDS-PAGE). CD160 is a GPI-anchored lymphocyte surface receptor in which expression is mostly restricted to the highly cytotoxic CD56(dim) CD16(+) peripheral blood NK subset. CD160 is a receptor showing broad specificity for both classical and non-classical MHC class I molecules. CD160 acts as a co-activator receptor for CD3-induced proliferation of CD4+ CD160+ T cells isolated from inflammatory skin lesions. CD160-Fc fusion protein targets a novel costimulatory pathway and prolongs allograft survival. Source: Recombinant protein corresponding to aa27-159 from human CD60, fused to the N-terminus of the Fc region of human IgG1, expressed in CHO cells. Biological Activity: Measured by its binding ability in a functional ELISA. Endotoxin: ~0.06EU/ug protein (LAL test; Lonza)