Definitions for galactose oxidase

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  1. Galactose oxidase

    In enzymology, a galactose oxidase is an enzyme that catalyzes the chemical reaction Thus, the two substrates of this enzyme are D-galactose and O2, whereas its two products are D-galacto-hexodialdose and H2O2. This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with oxygen as acceptor. The systematic name of this enzyme class is D-galactose:oxygen 6-oxidoreductase. Other names in common use include D-galactose oxidase, and beta-galactose oxidase. It employs two cofactors, copper and an active site amino acid derived post-translational modification involving the covalent cross-linking of Cys228 and Tyr272 and which represents the site of the catalytic free radical.

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  1. Galactose Oxidase

    An enzyme that oxidizes galactose in the presence of molecular oxygen to D-galacto-hexodialdose. It is a copper protein. EC 1.1.3.9.

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