title: Subunit homology in invertebrate hemoglobins: a primitive heme binding chain?
mesh_terms: D000818:Animals; D000845:Annelida / Q000378:metabolism*; D004591:Electrophoresis, Polyacrylamide Gel; D006418:Heme; D006454:Hemoglobins; D046911:Macromolecular Substances; D010802:Phylogeny; D011077:Polychaeta / Q000378:metabolism; D013045:Species Specificity
chemical_list: D006454:Hemoglobins; D046911:Macromolecular Substances; D006418:Heme