title: Position and function of the organic selenium in glutathione peroxidase.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D002417:Cattle; D055598:Chemical Phenomena; D002621:Chemistry; D003545:Cysteine / Q000031:analogs & derivatives; D004912:Erythrocytes; D005979:Glutathione Peroxidase; D006801:Humans; D013058:Mass Spectrometry; D012643:Selenium; D017279:Selenocysteine; D012756:Sheep; D014961:X-Ray Diffraction
chemical_list: D017279:Selenocysteine; D005979:Glutathione Peroxidase; D012643:Selenium; D003545:Cysteine