UTP monosaccharide 1 phosphate uridylyltransferase

In enzymology, an UTP-monosaccharide-1-phosphate uridylyltransferase (EC 2.7.7.64) is an enzyme that catalyzes the chemical reaction

Thus, the two substrates of this enzyme are UTP and monosaccharide 1-phosphate, whereas its two products are diphosphate and UDP-monosaccharide.

This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing nucleotide groups (nucleotidyltransferases). The systematic name of this enzyme class is '. Other names in common use include UDP-sugar pyrophosphorylase', and PsUSP.