LAG-3 (lymphocyte activation gene 3) protein is expressed on antigen-activated T cells and transmits inhibitory signals by binding to ligands such as FGL1. FGL1 is the main ligand responsible for the suppressive function of LAG3 T cells. LAG-3 Protein, Marmoset (HEK293, His) is the recombinant Marmoset-derived LAG-3 protein, expressed by HEK293 , with C-10*His labeled tag.