title: Conservatism in the evolution of immunoglobulin.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D005075:Biological Evolution; D003530:Cyprinidae; D005399:Fishes; D000882:Haplorhini; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis*; D008251:Macaca; D010455:Peptides / Q000032:analysis*; D010828:Physiology, Comparative; D011817:Rabbits
chemical_list: D007136:Immunoglobulins; D010455:Peptides