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)
UDP-α-D-Glucose is an endogenous nucleotide sugar involved in glycosyltransferase reactions in metabolism. It has been shown to bind the P2Y14receptor (EC50= 0.35 μM), an atypical P2Y receptor involved in the activation of dendritic cells and glial cells.1It can also bind to and activate GPR17, inducing oligodendrocyte differentiation at a maximal concentration of 100 μM.2 1.Jacobson, K.A., Ivanov, A.A., de Castro, S., et al.Development of selective agonists and antagonists of P2Y receptorsPurinergic Signal.5(1)75-89(2009) 2.Lecca, D., Trincavelli, M.L., Gelosa, P., et al.The recently identified P2Y-like receptor GPR17 is a sensor of brain damage and a new target for brain repairPLoS One3(10)(2008)