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 4x4y A B 0 NA NA NA NA IMMUNE SYSTEM 12/04/14 Retrofitting antibodies with stabilizing mutations. Herceptin scFv mutant K30D/S52D. HOMO SAPIENS homo sapiens homo sapiens Langley, D.B., Roome, B., Christ, D. 2.49 X-RAY DIFFRACTION 0.262 0.210 False True IGHV3 IGKV1 Kappa None None None None None 4x4y C D 0 NA NA NA NA IMMUNE SYSTEM 12/04/14 Retrofitting antibodies with stabilizing mutations. Herceptin scFv mutant K30D/S52D. HOMO SAPIENS homo sapiens homo sapiens Langley, D.B., Roome, B., Christ, D. 2.49 X-RAY DIFFRACTION 0.262 0.210 False True IGHV3 IGKV1 Kappa None None None None None