ID 4.2.1.110 DE aldos-2-ulose dehydratase. AN 1,5-anhydro-D-fructose dehydratase (microthecin-forming). AN AUDH. AN pyranosone dehydratase. CA 1,5-anhydro-D-fructose = H2O + microthecin. CC -!- This enzyme catalyzes two of the steps in the anhydrofructose CC pathway, which leads to the degradation of glycogen and starch via CC 1,5-anhydro-D-fructose. CC -!- Aldose-2-uloses such as 2-dehydroglucose can also act as substrates, CC but more slowly. CC -!- This is a bifunctional enzyme that acts as both a lyase and as an CC isomerase. CC -!- Differs from EC 4.2.1.111, which can carry out only reaction 1, CC is inhibited by its product and requires metal ions for activity. DR P84193, AUD_PHACH ; //