CAS number 65-46-3 YesY
PubChem 6175
ChemSpider 5940 YesY
KEGG D07769 YesY
MeSH Cytidine
ChEBI CHEBI:17562 YesY
Jmol-3D images Image 1
Molecular formula C9H13N3O5
Molar mass 243.22 g mol−1
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Cytidine is a nucleoside molecule that is formed when cytosine is attached to a ribose ring (also known as a ribofuranose) via a β-N1-glycosidic bond. Cytidine is a component of RNA.

If cytosine is attached to a deoxyribose ring, it is known as a deoxycytidine.

Dietary sources of cytidine

Dietary sources of cytidine include foods with high RNA (ribonucleic acid) content,[1] such as organ meats, Brewer's yeast, as well as pyrimidine-rich foods such as beer. During digestion, RNA-rich foods are broken-down into ribosyl pyrimidines (cytidine and uridine), which are absorbed intact.[1] In humans, dietary cytidine is converted into uridine, [2] which is probably the compound behind cytidine's metabolic effects.


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  • cytidine — cytidine. См. цитидин. (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.

  • cytidine — ● cytidine nom féminin Nucléoside résultant de la condensation de la cytosine et du ribose et constituant des acides nucléiques …   Encyclopédie Universelle

  • cytidine — [sit′ə dēn΄, sīt′ə dēn΄] n. a white, crystalline nucleoside, C9H13N3O5, condensed from cytosine and ribose: it is a major component of RNA …   English World dictionary

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