生物活性: Davoceticept (ALPN-202; CD80 vIgD-Fc) is a monoclonal antibody targeting CTLA-4. Davoceticept consists of the (1-107) fragment of CD80 linked to IGHG1 Fc via a peptidyl linker. The expression system of Davoceticept is usually CHO (Chinese Hamster Ovary) cells.