The reversible isomerization of Fru(6)P (fructose-6-phosphate) to form G6P (glucose-6-phosphate) is catalyzed by cytosolic GPI (phosphoglucose isomerase) dimer (Noltman 1972; Tsuboi et al. 1958; Xu and Beutler 1994).
Beutler, E, Xu, W
Tsuboi, KK, Hudson, PB, Estrada, J
Boyer, PD
glucose-6-phosphate isomerase activity of GPI dimer [cytosol]
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