title: Antibody-antigen flexibility.
mesh_terms: D000906:Antibodies / Q000276:immunology; D000916:Antibody Diversity; D000941:Antigens / Q000276:immunology; D007127:Immunoglobulin Constant Regions; D007140:Immunoglobulin Fab Fragments; D007141:Immunoglobulin Fc Fragments; D007074:Immunoglobulin G; D007135:Immunoglobulin Variable Region; D011487:Protein Conformation
chemical_list: D000906:Antibodies; D000941:Antigens; D007127:Immunoglobulin Constant Regions; D007140:Immunoglobulin Fab Fragments; D007141:Immunoglobulin Fc Fragments; D007074:Immunoglobulin G; D007135:Immunoglobulin Variable Region