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 6obe B NA 0 A protein NA ricin a chain TOXIN 04/01/20 Ricin A chain bound to VHH antibody V6H8 RICINUS COMMUNIS; VICUGNA PACOS vicugna pacos ricinus communis Rudolph, M.J. 1.732 X-RAY DIFFRACTION 0.208 0.171 False True IGHV1 NA NA None None None None None