ID 2.7.7.64 DE UTP-monosaccharide-1-phosphate uridylyltransferase. AN UDP-sugar pyrophosphorylase. AN USP. CA a monosaccharide 1-phosphate + H(+) + UTP = a UDP-monosaccharide + CA diphosphate. CC -!- The reaction can occur in either direction and it has been postulated CC that MgUTP and Mg-diphosphate are the actual substrates. CC -!- Catalyzes the formation of UDP-Glc, UDP-Gal, UDP-GlcA, UDP-L-Ara and CC UDP-Xyl, showing broad substrate specificity toward monosaccharide CC 1-phosphates. CC -!- Mannose 1-phosphate, L-fucose 1-phosphate and glucose 6-phosphate are CC not substrates and UTP cannot be replaced by other nucleotide CC triphosphates. DR Q09WE7, USP1_SOYBN ; Q9C5I1, USP_ARATH ; Q0GZS3, USP_CUCME ; DR A2YGP6, USP_ORYSI ; Q5Z8Y4, USP_ORYSJ ; Q5W915, USP_PEA ; //