The FCGRT protein delivers passive immunity by binding to monomeric IgG and promoting its absorption from milk. It forms an FcRn-IgG complex, which is transcytosis by the intestinal epithelium and releases IgG into the bloodstream or interstitial fluid. FCGRT-B2M Heterodimer Protein, Cynomolgus (Biotinylated, HEK293, His) is a recombinant protein dimer complex containing cynomolgus-derived FCGRT-B2M Heterodimer protein, expressed by HEK293 , with C-His labeled tag. FCGRT-B2M Heterodimer Protein, Cynomolgus (Biotinylated, HEK293, His), has molecular weight of ~31.9 & 11.6 KDa, respectively.