title: New biologically active fragments of immunoglobulins.
mesh_terms: D000595:Amino Acid Sequence; D001665:Binding Sites; D006801:Humans; D007128:Immunoglobulin Fragments / Q000096:biosynthesis* / Q000302:isolation & purification; D008956:Models, Chemical; D009842:Oligopeptides / Q000096:biosynthesis / Q000302:isolation & purification; D011487:Protein Conformation
chemical_list: D007128:Immunoglobulin Fragments; D009842:Oligopeptides; C031491:rigin