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 2r2b B A 0 B carbohydrate KDA polysaccharide IMMUNE SYSTEM 08/24/07 Crystal structure of S25-2 Fab in complex with Kdo analogues MUS MUSCULUS; SYNTHETIC CONSTRUCT mus musculus mus musculus mus musculus Brooks, C.L., Evans, S.V. 1.6 X-RAY DIFFRACTION 0.253 0.231 False False IGHV7 IGKV8 Kappa None None None None None