α-D-Glucose-1-phosphate is an intermediate in glycogen metabolism.1,2It is a precursor in the biosynthesis of UDP-glucose, the glucose donor in glycogen biosynthesis.2α-D-Glucose-1-phosphate can be formed during glycogen breakdownviaphosphorolytic cleavage of glycogen by glycogen phosphorylase.1It can be converted to glucose-6-phosphate by phosphoglucomutase. α-D-Glucose-1-phosphate is combined with CTP by α-D-glucose-1-phosphate cytidylyltransferase to form CDP-glucose in the first step of CDP-D-tyvelose biosynthesis inS. typhi.3Bacterial sucrose phosphorylase converts sucrose and phosphate into D-fructose and α-D-glucose-1-phosphate.4 1.Berg, J.M., Tymoczko, J.L., and Stryer, L.Glycogen breakdown requires the interplay of several enzymesBiochemistry(2002) 2.Berg, J.M., Tymoczko, J.L., and Stryer, L.Glycogen is synthesized and degraded by different pathwaysBiochemistry(2002) 3.Koropatkin, N.M., and Holden, H.M.Molecular structure of ɑ-D-glucose-1-phosphate cytidylyltransferase from Salmonella typhiJ. Biol. Chem.279(42)44023-44029(2004) 4.Goedl, C., Schwarz, A., Minani, A., et al.Recombinant sucrose phosphorylase from Leuconostoc mesenteroides: Characterization, kinetic studies of transglucosylation, and application of immobilised enzyme for production of ɑ-Ｄ-glucose 1-phosphateJ. Biotechnol.129(1)77-86(2007)

α-D-Glucose 1-phosphate disodium salt is converted into D-glucose-6-phosphate by the enzyme phosphoglucomutase.