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Information on EC 5.3.1.3 - D-arabinose isomerase

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IUBMB Comments
Requires a divalent metal ion (the enzyme from the bacterium Escherichia coli prefers Mn2+). The enzyme binds the closed form of the sugar and catalyses ring opening to generate a form of open-chain conformation that facilitates the isomerization reaction, which proceeds via an ene-diol mechanism . The enzyme catalyses the aldose-ketose isomerization of several sugars. Most enzymes also catalyse the reaction of EC 5.3.1.25, L-fucose isomerase . The enzyme from the bacterium Falsibacillus pallidus also converts D-altrose to D-psicose . cf. EC 5.3.1.4, L-arabinose isomerase.
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The enzyme appears in viruses and cellular organisms
Reaction Schemes
Synonyms
D-AI, D-arabinose aldose-ketose-isomerase, D-Arabinose isomerase, D-arabinose ketol-isomerase, D-Arabinose(L-fucose) isomerase, EC 5.1.3.25, Isomerase, arabinose, L-Fucose isomerase, more
REACTION
REACTION DIAGRAM
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ORGANISM
UNIPROT
LITERATURE
D-Arabinose = D-ribulose
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