UDP-Glucose is a nucleotide sugar that plays a crucial role in cellular metabolism. It is formed from glucose and uridine triphosphate (UTP) and serves as a key building block for the synthesis of glycogen, glycoproteins, and glycolipids. In addition to its role in energy storage, UDP-Glucose is involved in various biosynthetic pathways. It acts as a donor of glucose residues in the formation of polysaccharides, contributing to the structural integrity of cell walls in plants and bacteria.