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ENZYME entry: EC

Accepted Name
1,5-anhydro-D-fructose dehydratase.
Alternative Name(s)
1,5-anhydro-D-arabino-hex-2-ulose dehydratase.
1,5-anhydro-D-fructose 4-dehydratase.
1,5-anhydro-D-fructose hydrolyase.
AF dehydratase.
Reaction catalysed
1,5-anhydro-D-fructose <=> 1,5-anhydro-4-deoxy-D-glycero-hex-3-en-2-ulose + H(2)O
Ca(2+) or Na(+) or Mg(2+).
  • Catalyzes one of the steps in the anhydrofructose pathway, which leads to the degradation of glycogen and starch via 1,5-anhydro-D- fructose.
  • The other enzymes involved in this pathway are EC, EC and EC
  • Unlike EC the enzyme is specific for 1,5-anhydro-D-fructose as substrate and shows no activity toward aldose-2-uloses such as 2-dehydroglucose; in addition, it is inhibited by its end-product ascopyrone M and it cannot convert the end-product ascopyrone M into microthecin, as can EC
PRIAM enzyme-specific profiles4.2.1.111
KEGG Ligand Database for Enzyme Nomenclature4.2.1.111
IUBMB Enzyme Nomenclature4.2.1.111
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