uridine

Uracil ribonucleoside; one of the major nucleosides in RNAs; as the pyrophosphate (UDP, UDPG, etc.), u. is active in sugar metabolism. SYN: 1-β-d-ribofuranosyluracil.
- cyclic u. 3′,5′-monophosphate (cUMP) a cyclic nucleotide involved in metabolic regulation; inhibits the growth of some tumors.
- u. 5′-diphosphate (UDP) u. 5′-pyrophosphate; a condensation product of u. and pyrophosphoric acid.
- u. 5′-monophosphate (UMP) SYN: uridylic acid.
- u. phosphorylase a ribosyltransferase that catalyzes the reaction of u. with orthophosphate to produce uracil and α-d-ribose 1-phosphate.
- u. 5′-triphosphate (UTP) u. esterified with triphosphoric acid at its 5′ position; the immediate precursor of uridylic acid residues in RNA.

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uri·dine 'yu̇r-ə-.dēn n a crystalline pyrimidine nucleoside C9H12N2O6 that is composed of uracil attached to ribose, that is derived by hydrolysis from nucleic acids, and that in the form of phosphate derivatives plays an important role in carbohydrate metabolism

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n.
a compound containing uracil and the sugar ribose. See also nucleoside.

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uri·dine (ūrґĭ-dēn) a pyrimidine nucleoside, uracil linked by its N1 nitrogen to the C1 carbon of ribose. It is a component of ribonucleic acid, and its nucleotides participate in the biosynthesis of polysaccharides and some polysaccharide-containing compounds. Symbol U.

Medical dictionary. 2011.

Look at other dictionaries:

  • Uridine — is a molecule (known as a nucleoside) that is formed when uracil is attached to a ribose ring (also known as a ribofuranose) via a β N1 glycosidic bond.If uracil is attached to a deoxyribose ring, it is known as a deoxyuridine.Harvard researchers …   Wikipedia

  • Uridine — Structure chimique de l uridine Général No CAS …   Wikipédia en Français

  • uridine — ● uridine nom féminin Nucléoside entrant dans la constitution de l A.R.N. et dont l hydrolyse fournit l uracile et le ribose. uridine n. f. BIOCHIM Nucléoside entrant dans la composition de l A.R.N. uridine [yʀidin] n. f. ÉTYM. Mil. XXe (av. 1972 …   Encyclopédie Universelle

  • uridine — uridine. См. уридин. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • uridine — [yoor′ə dēn΄] n. [ UR(O) + ID(E) + INE3] a nucleoside, C9H12N2O6, formed from uracil and ribose and found in RNA …   English World dictionary

  • uridine — uridinas statusas T sritis chemija apibrėžtis Nukleozidas. santrumpa( os) Urd atitikmenys: angl. uridine rus. уридин ryšiai: sinonimas – 3 β D ribofuranoziluracilas …   Chemijos terminų aiškinamasis žodynas

  • uridine — The (ribo)nucleoside resulting from the combination of the base uracil (U) and the sugar D ribose. See: uridylic acid, uridine triphosphate …   Glossary of Biotechnology

  • uridine — ˈyu̇rəˌdēn, də̇n noun ( s) Etymology: International Scientific Vocabulary ur (I) + idine : a crystalline nucleoside C9H12N2O6 that is obtained by hydrolysis of ribonucleic acid and uridylic acid and that in the form of phosphate derivatives (as… …   Useful english dictionary

  • uridine — noun Etymology: International Scientific Vocabulary 1ur + idine Date: 1911 a ribonucleoside C9H12N2O6 containing uracil that in the form of phosphate derivatives plays an important role in carbohydrate metabolism …   New Collegiate Dictionary

  • uridine — The ribonucleoside formed by the combination of ribose and uracil …   Dictionary of molecular biology

  • uridine — /yoor i deen , din/, n. Biochem. a ribonucleoside composed of ribose and uracil. * * * …   Universalium

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