pdb Hchain Lchain model antigen_chain antigen_type antigen_het_name antigen_name short_header date compound organism heavy_species light_species antigen_species authors resolution method r_free r_factor scfv engineered heavy_subclass light_subclass light_ctype affinity delta_g affinity_method temperature pmid 5xxy H L 0 A protein NA programmed cell death 1 ligand 1 IMMUNE SYSTEM 07/05/17 Complex structure of PD-L1 with atezolizumab Fab HOMO SAPIENS homo sapiens homo sapiens homo sapiens Zhou, A., Zhang, F. 2.9 X-RAY DIFFRACTION 0.295 0.236 False True IGHV3 IGKV1 Kappa None None None None None