LAG-3 Protein, expressed on antigen-activated T-cells, delivers inhibitory signals by binding to ligands like FGL1. LAG-3 Protein associates with CD3-TCR, directly inhibiting T-cell activation[1][2]. LAG-3 Protein, Cynomolgus (Biotinylated, HEK293, His-Avi) is the recombinant cynomolgus-derived LAG-3 protein, expressed by HEK293 , with C-Avi, C-His labeled tag. The total length of LAG-3 Protein, Cynomolgus (Biotinylated, HEK293, His-Avi) is 432 a.a., with molecular weight of 60-80 kDa.