D-psicose 3-epimerase

UniProtKB accession: A9CH28

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Polymer Entities matching query 344

Go to UniProtKB: A9CH28

UniProtKB description: Involved in the biosynthesis of D-psicose. Catalyzes the reversible epimerization of D-fructose at the C3 position to yield D-psicose. The enzyme is highly specific for D-psicose and shows very low activity with D-tagatose. The substrate specificity decreases in the following order: D-fructose, D-tagatose, D-ribulose, D-xylulose, and D-sorbose. It shows a higher level of activity for cis ketoses than for trans-ketoses.

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