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 5u4m B NA 0 A protein NA ricin HYDROLASE/IMMUNE SYSTEM 12/05/16 RTA-V1C7-G29R-no_salt RICINUS COMMUNIS; VICUGNA PACOS vicugna pacos ricinus communis Rudolph, M.J., Mantis, N. 2.5 X-RAY DIFFRACTION 0.247 0.202 False True IGHV1 NA NA None None None None None