Cellobiose oxidoreductase is a flavocytochrome secreted by wood-rotting fungi. The structure and functional role of the enzyme are reviewed, and a mechanism through which the enzyme produces superoxide, ferrous iron and hydrogen peroxide is proposed. The reactions of hydroxyl radicals formed by Fenton chemistry are discussed in the context of lignocellulose biodegradation.

Keywords:
cellobiose dehydrogenase, cellobiose oxidoreductase, Fenton chemistry, Phanerochaete chrysosporium, superoxide, wood-rot
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© 2003 Biochemical Society
2003
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