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ribulosephosphate 3-epimerase

(Science: enzyme) An enzyme catalyzing the reversible interconversion of d-xylulose 5-phosphate and its epimer, d-ribulose 5-phosphate; a step in the nonoxidative phase of the pentose phosphate pathway.

Registry number: EC 5.1.3.1

Synonym: d-erythrose 4-phosphate isomerase, pentose-5-phosphate 3-epimerase, phosphoribulose epimerase.