title: Electron spin resonance of non-haem iron in xanthine oxidase.
mesh_terms: D000818:Animals; D003080:Cold Temperature; D003300:Copper; D004492:Edetic Acid; D004578:Electron Spin Resonance Spectroscopy; D007501:Iron / Q000032:analysis*; D008892:Milk / Q000201:enzymology; D008982:Molybdenum / Q000032:analysis; D010084:Oxidation-Reduction; D014969:Xanthine Oxidase / Q000032:analysis*
chemical_list: D003300:Copper; D008982:Molybdenum; D004492:Edetic Acid; D007501:Iron; D014969:Xanthine Oxidase