ctla-4 (cytotoxic t-lymphocyte-associated protein 4, cd152) protein. ctla4 blocking antibodies are used in cancer therapy (immune

pdb3osk ctla4 cytotoxic tlymphocyte lymphocyte associated protein cd152 antigen presenting antibody diabetes mellitus celiac autoimmune mutation fusion ctla4ig abatacept belatacept ipilimumab immune checkpoint blockade structure peptide amino acid molecule polypeptide polymer atoms science scientific disease health molecular model