title: Structure and function of hemoglobin.
mesh_terms: D000595:Amino Acid Sequence; D006418:Heme; D006454:Hemoglobins / Q000032:analysis; D008956:Models, Chemical; D014364:Tryptophan; D014443:Tyrosine
chemical_list: D006454:Hemoglobins; D014443:Tyrosine; D006418:Heme; D014364:Tryptophan