Xanthine oxidase. V. Differential inhibition of the reduction of various electron acceptors.


Milk xanthine oxidase can catalyze the reduction of oxygen, cytochrome c, nitrate, ferricyanide, and various quinones and dyes by many aldehydes and purines. When acting upon its substrates, this enzyme can also initiate the aerobic oxidation of sulfite (1, 2) and induce the chemiluminescence of lucigenin and of luminol (3, 4). The reduction of cytochrome c… (More)


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