Mouse LAG3, Fc fusion protein (Human), also known as Lymphocyte-Activation Gene 3 and CD223, with C-terminal Avi-Tag™. GenBank Accession No. NM_008479, a.a. 23-442 expressed in a HEK293 cell expression system and enzymatically biotin-labeled using Avi-tag™ technology. MW = 74 kDa.