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.

α-D-Glucose-1-phosphate disodium hydrate serves multiple roles in medical and biochemical applications, including as a precursor in the synthesis of glucuronic acid, a cytostatic compound crucial for cardiopathic therapy, an antibiotic, an immunosuppressive agent, and a component in circulatory system therapy [1].

α-D-Glucose-1,6-bisphosphate is abis-phosphorylated derivative of α-D-glucose that has roles in carbohydrate metabolism.1It is the product of the reaction of glucose-1- or 6-phosphate with glucose-1,6-bisphosphate synthase (PGM2LI) in the conversion of 1,3-bisphosphoglycerate to 3-phosphoglycerate.2It is also a cofactor for the bacterial enzyme phosphopentomutase.3,4α-D-Glucose-1,6-bisphosphate has been used in the study of carbohydrate metabolism. 1.Beitner, R.Regulation of carbohydrate metabolism by glucose 1,6-bisphosphate in extrahepatic tissues; comparison with fructose 2,6-bisphosphateInt. J. Biochem.22(6)553-557(1990) 2.Maliekal, P., Sokolova, T., Vertommen, D., et al.Molecular identification of mammalian phosphopentomutase and glucose-1,6-bisphosphate synthase, two members of the α-D-phosphohexomutase familyJ. Biol. Chem.282(44)31844-31851(2007) 3.Moustafa, H.M.A., Zaghloul, T.I., and Zhang, Y.-H.P.A simple assay for determining activities of phosphopentomutase from a hyperthermophilic bacterium Thermotoga maritimaAnal. Biochem.50175-81(2016) 4.Panosian, T.D., Nannemann, D.P., Watkins, G.R., et al.Bacillus cereus phosphopentomutase is an alkaline phosphatase family member that exhibits an altered entry point into the catalytic cycleJ. Biol. Chem.286(10)8043-8054(2011)

Sucrose phosphorylase, a bacterial transglucosidase, catalyzes the conversion of sucrose and phosphate into α-D-glucose-1-phosphate and D-fructose. This enzyme can also hydrolyze glucosylated sucrose into α-D-glucose or transfer the glucosyl group to a receptor's hydroxyl group, resulting in new α-D-glucoside products. Its enzymatic activity towards the base, substrate, and product is weak [1].