Confused and have questions? We’ve got answers. With Chegg Study, you can get step-by-step solutions to your questions from an expert in the field. If you rather get 1:1 study help, try 30 minutes of free online tutoring with Chegg Tutors.


From Biology-Online Dictionary | Biology-Online Dictionary
Jump to: navigation, search



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.