5.3.2.7: ascopyrone tautomerase

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For detailed information about ascopyrone tautomerase, go to the full flat file.

Reaction

Synonyms

1,5-anhydro-D-glycero-hex-3-en-2-ulose tautomerase, APM tautomerase, APTM, APTM1, APTM2, ascopyrone intramolecular oxidoreductase, ascopyrone isomerase, ascopyrone P tautomerase, ascopyrone tautomerase, AUDH, EC 5.3.3.15

ECTree

     5 Isomerases

         5.3 Intramolecular oxidoreductases

             5.3.2 Interconverting keto- and enol-groups

                5.3.2.7 ascopyrone tautomerase

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1	Crystallization (Commentary)
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5	Molecular Weight [Da]
3	Natural Substrates/ Products (Substrates)
3	Organism
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2	pH Optimum
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1	Systematic Name

Systematic Name

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Systematic Name on EC 5.3.2.7 - ascopyrone tautomerase

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SYSTEMATIC NAME

IUBMB Comments

1,5-anhydro-4-deoxy-D-glycero-hex-3-en-2-ulose DELTA3-DELTA1-isomerase

This enzyme catalyses one of the steps in the anhydrofructose pathway, which leads to the degradation of glycogen and starch via 1,5-anhydro-D-fructose [1,2]. The other enzymes involved in this pathway are EC 4.2.1.110 (aldos-2-ulose dehydratase), EC 4.2.1.111 (1,5-anhydro-D-fructose dehydratase) and EC 4.2.2.13 [exo-(1->4)-alpha-D-glucan lyase]. Ascopyrone P is an anti-oxidant [2].