UDP-sugar A pyrimidine nucleotide-sugar having UDP as the nucleotide component attached to an unspecified sugar via an anomeric diphosphate linkage. chebi_ontology UDP-monosaccharide UDP-sugars KEGG:C05227 CHEBI:13500 CHEBI:22135 UDP-sugar CHEBI:17297 CHEBI:9840 UDP pyrimidine nucleotide-sugar