. "In decreasing order of activity, guanosine, inosine and adenosine diphosphate hexoses are substrates in the reverse reaction, with either glucose or mannose as the sugar." . . . "Nucleoside-triphosphate-hexose-1-phosphate nucleotidyltransferase" . "Hexose-1-phosphate guanylyltransferase" . "Nucleoside-triphosphate-aldose-1-phosphate nucleotidyltransferase" . "GDP hexose pyrophosphorylase" . "GTP:alpha-D-hexose-1-phosphate guanylyltransferase" . "Guanosine diphosphohexose pyrophosphorylase" . "Hexose 1-phosphate nucleotidyltransferase" . "Hexose nucleotidylating enzyme" . "NDP-hexose diphosphorylase" . "NDP-hexose pyrophosphorylase" . "NTP:hexose-1-phosphate nucleotidyltransferase" . "Nucleoside diphosphohexose pyrophosphorylase" . . "Nucleoside triphosphate + alpha-D-aldose 1-phosphate = diphosphate + NDP-hexose." .