ALT-100 (Human IgG4) is a humanized antibody expressed in CHO, targeting NAMPT. ALT-100 (Human IgG4) consists of a huIgG1/huIgG4 heavy chain and a huκ light chain, with a predicted molecular weight (MW) of 150 kDa. For inflammatory or fibrotic diseases, the isotype control for ALT-100 (Human IgG4) can refer to Human IgG4 (S228P) kappa, Isotype Control.