The univalent reduction of oxygen by reduced flavins and quinones.
D000323:Adrenochrome; D000818:Animals; D001426:Bacterial Proteins; D001665:Binding Sites; D002417:Cattle; D008058:Dihydrolipoamide Dehydrogenase; D004579:Electron Transport; D004837:Epinephrine; D004912:Erythrocytes / Q000201:enzymology; D005288:Ferredoxins; D005486:Flavin Mononucleotide; D005420:Flavoproteins; D005609:Free Radicals; D006863:Hydrogen-Ion Concentration; D007501:Iron; D008892:Milk / Q000201:enzymology; D009249:NADP; D010084:Oxidation-Reduction; D010088:Oxidoreductases; D010100:Oxygen; D014812:Vitamin K; D014969:Xanthine Oxidase
D001426:Bacterial Proteins; D005288:Ferredoxins; D005420:Flavoproteins; D005609:Free Radicals; D014812:Vitamin K; D009249:NADP; D000323:Adrenochrome; D005486:Flavin Mononucleotide; D007501:Iron; D010088:Oxidoreductases; D014969:Xanthine Oxidase; D008058:Dihydrolipoamide Dehydrogenase; D010100:Oxygen; D004837:Epinephrine