A deoxyribonucleoside that has uracil attached to a deoxyribose ring.


It is an antimetabolite, especially when it is converted to deoxyuridine triphosphate and incorporated to DNA during replication. The presence of side groups bound to the uracil component prevents base pairing, hence, interferes with DNA synthesis.

IUPAC name: 1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2, 4-dione
Molecular formula: C9H12N2O5


  • 2-Deoxyuridine
  • Uracil deoxyriboside
  • Deoxyribose uracil

Compare: uridine.
See also: deoxyribonucleoside.

Related term: Deoxyuridine 1-hydroxylase.

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