Pyranose dehydrogenase 1

UniProtKB accession:  Q3L245

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UniProtKB description:  Catalyzes the single-oxidation or sequential double oxidation reaction of carbohydrates primarily at carbon-2 and/or carbon-3 with the concomitant reduction of the flavin. The enzyme exhibits a broad sugar substrate specificity, oxidizing different aldopyranoses to the corresponding C-1, C-2, C-3 or C-1,2, C-2,3 and C-3,4 (di)dehydro sugars with substrate-specific regioselectivity. Accepts only a narrow range of electron acceptors such as substituted benzoquinones and complexed metal ions and reacts extremely slowly with O(2) as acceptor. May play a role in the natural recycling of plant matter by oxidizing all major monosaccharides in lignocellulose and by reducing quinone compounds or reactive radical species generated during lignin depolymerization.