Uridine monophosphate (UMP) is a nucleotide that plays a crucial role in the synthesis of RNA. It is composed of a uracil base, a ribose sugar, and a single phosphate group. UMP is essential for various biological processes, including the production of nucleotides and the regulation of cellular metabolism. In addition to its role in RNA synthesis, UMP is involved in the synthesis of other important biomolecules, such as cytidine triphosphate (CTP) and uridine triphosphate (UTP). UMP can also be found in certain dietary sources, contributing to its availability for cellular functions in the body.