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 5ivn A NA 0 B peptide NA cadherin derived peptide PEPTIDE BINDING PROTEIN 03/21/16 BC2 nanobody in complex with the BC2 peptide tag VICUGNA PACOS; SYNTHETIC CONSTRUCT vicugna pacos homo sapiens Braun, M.B., Stehle, T. 1.0 X-RAY DIFFRACTION 0.150 0.128 False True IGHV1 NA NA None None None None None