Bunting, J W Specificity of xanthine oxidase for nitrogen heteroaromatic cation substrates. [electronic resource] - Canadian journal of biochemistry Jan 1980 - 49-57 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0008-4018 Standard No.: 10.1139/o80-007 doi Subjects--Topical Terms: AnimalsBinding SitesCattleHydrogen-Ion ConcentrationKineticsMilk--enzymologyModels, ChemicalPyridinium CompoundsQuinolinium CompoundsSubstrate SpecificityXanthine Oxidase--metabolism