Oxidation of 4-hydroxypyrazolo (3,4-d) pyrimidine by xanthine oxidase, the route of electron transfer from substrate to acceptor dyes.
D000818:Animals; D002417:Cattle; D004396:Coloring Agents; D004579:Electron Transport; D005182:Flavin-Adenine Dinucleotide; D008892:Milk / Q000201:enzymology; D010619:Phenazines; D011720:Pyrazoles; D011743:Pyrimidines; D013053:Spectrophotometry; D013431:Sulfates; D014969:Xanthine Oxidase
D004396:Coloring Agents; D010619:Phenazines; D011720:Pyrazoles; D011743:Pyrimidines; D013431:Sulfates; D005182:Flavin-Adenine Dinucleotide; D014969:Xanthine Oxidase