ID   1.1.99.28
DE   Glucose-fructose oxidoreductase.
CA   D-glucose + D-fructose = D-gluconolactone + D-glucitol.
CC   -!- D-mannose, D-xylose, D-galactose, 2-deoxy-D-glucose and L-arabinose
CC       will function as aldose substrates, but with low affinities.
CC   -!- The ketose substrate must be in the open-chain form.
CC   -!- The apparent affinity for fructose is low, because little of the
CC       fructose substrate is in the open-chain form.
CC   -!- Xylulose and glycerone (dihydroxyacetone) will replace fructose,
CC       but they are poor substrates.
CC   -!- The enzyme from Zymomonas mobilis contains tightly bound NADP(+).
DR   Q07982, GFO_ZYMMO  ;
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