Description_x000D_ General description_x000D_ Human secreted Programmed Cell Death 1 (PD-1)-Fc fusion protein, also known as CD279, PDCD1, and SLEB2, GenBank Accession No. NM_014143, a.a. 25-167 with an L128A mutation, fused at the Cterminus with the Fc portion of human IgG1, and C-terminal Avitag™ , expressed in a HEK293 cell expression system and enzymatically biotin-labeled using Avitag™ technology. MW = 44.5 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation._x000D_ Physical form_x000D_ Aqueous solution_x000D_ Legal Information_x000D_ AviTag is a trademark of Avidity, LLC