GDP-D-glucose phosphorylase

GDP-D-glucose phosphorylase is an enzyme with systematic name GDP:alpha-D-glucose 1-phosphate guanylyltransferase. This enzyme catalyses the following chemical reaction


 * GDP-alpha-D-glucose + phosphate $$\rightleftharpoons$$ alpha-D-glucose 1-phosphate + GDP

The enzyme may be involved in prevention of misincorporation of glucose in place of mannose residues into glycoconjugates.