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 7mlz H L 0 A protein NA spike protein s1 IMMUNE SYSTEM/VIRAL PROTEIN 04/29/21 Cryo-EM structure of SARS-CoV-2 spike in complex with neutralizing antibody B1-182.1 that targets the receptor-binding domain SEVERE ACUTE RESPIRATORY SYNDROME CORONAVIRUS 2; HOMO SAPIENS homo sapiens homo sapiens severe acute respiratory syndrome coronavirus2 Zhou, T., Tsybovsky, T., Kwong, P.D. 3.71 ELECTRON MICROSCOPY NA NA False True IGHV1 IGKV3 Kappa None None None None None