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Information on EC 4.1.1.68 - 5-oxopent-3-ene-1,2,5-tricarboxylate decarboxylase

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EC Tree
     4 Lyases
         4.1 Carbon-carbon lyases
             4.1.1 Carboxy-lyases
                4.1.1.68 5-oxopent-3-ene-1,2,5-tricarboxylate decarboxylase
IUBMB Comments
Requires Mg2+ [2,3]. Part of the 4-hydroxyphenylacetate degradation pathway in Escherichia coli.
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The expected taxonomic range for this enzyme is: Escherichia coli
Reaction Schemes
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Synonyms
2-Hydroxyhepta-2,4-diene-1,7-dioate isomerase/5-oxopent-3-ene-1,2,5-tricarboxylate decarboxylase, 5-Oxopenta-3-ene-1,2,5-tricarboxylate decarboxylase, Decarboxylase, 5-oxopenta-3-ene-1,2,5-tricarboxylate, HHDD isomerase/OPET decarboxylase, HpcE, OPET decarboxylase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
(2Z,4Z)-2-hydroxyhepta-2,4-dienedioate = (4Z)-2-oxohept-4-enedioate
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(1b)
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(3E,5R)-5-carboxy-2-oxohept-3-enedioate = (2Z,4Z)-2-hydroxyhepta-2,4-dienedioate + CO2
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(1a)
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(3E,5R)-5-carboxy-2-oxohept-3-enedioate = (4Z)-2-oxohept-4-enedioate + CO2
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