Definitions for uridine diphosphate
Uridine diphosphate, abbreviated UDP, is a nucleoside diphosphate. It is an ester of pyrophosphoric acid with the nucleoside uridine. UDP consists of the pyrophosphate group, the pentose sugar ribose, and the nucleobase uracil.
U.S. National Library of Medicine
A uracil nucleotide containing a pyrophosphate group esterified to C5 of the sugar moiety.
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