phosphopentose epimerase


phos·pho·pen·tose e·pim·er·ase

(fos'fō-pen'tōs ĕ-pim'er-ās'), An enzyme that catalyzes the reversible epimerization of a number of phosphorylated, five-carbon sugars; most notably ribulose 5-phosphate to xylulose 5-phosphate in the pentose phosphate pathway.