a pyrimidine found in nucleic acid s.
- c. arabinoside (CA, AraC) 1. a synthetic nucleoside used as an antimetabolite in the treatment of neoplasms; 2. incorrect term for arabinosylcytosine.

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cy·to·sine 'sīt-ə-.sēn n a pyrimidine base C4H5N3O that codes genetic information in the polynucleotide chain of DNA or RNA compare ADENINE, GUANINE, THYMINE, URACIL

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one of the nitrogen-containing bases (see pyrimidine) that occurs in the nucleic acid DNA.

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cy·to·sine (siґto-sēn) a pyrimidine base found in animal and plant cells, usually occurring condensed with ribose or deoxyribose to form the nucleosides cytidine and deoxycytidine, major constituents of nucleic acids. Symbol C. See also illustration of purine and pyrimidine bases, under base.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Cytosine — Cytosine …   Wikipedia

  • Cytosine — Structure de la 1H Cytosine Général …   Wikipédia en Français

  • cytosine — [ sitozin ] n. f. • 1903; de cyto et ine ♦ Biochim. Base pyrimidique présente dans l A. D. N. et dans l A. R. N. ● cytosine nom féminin Composé basique dérivé de la pyrimidine et constituant essentiel des acides nucléiques. (Elle est… …   Encyclopédie Universelle

  • cytosine — 1894, from Ger. cytosin (1894), from CYTO (Cf. cyto ) cell + ose + chemical suffix INE (Cf. ine) (2). The name cytosine (due to Kossel and Neumann) is misleading. Cytosine is not, like adenosine and guanosine, a nucleoside but the sugar free base …   Etymology dictionary

  • cytosine — cy to*sine (s[imac] t[ o]*s[i^]n or s[imac] t[ o]*s[=e]n), n. (Biochemistry) A pyrimidine ({C4H5N3O}) which is one of the four major basic components of DNA and RNA in most organisms, forming glyosides with ribose and deoxyribose. It is the basic …   The Collaborative International Dictionary of English

  • cytosine — cytosine. См. цитозин. (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.

  • cytosine — [sīt′ō sēn΄] n. [Ger zytosin < zyt , CYTO + os, OSE2 + in, INE3] a pyrimidine base, C4H5N3O, contained in the nucleic acids of all tissue: it links with guanine in the DNA structure …   English World dictionary

  • cytosine — /suy teuh seen , zeen , sin/, n. Biochem. a pyrimidine base, C4H5N3O, that is one of the fundamental components of DNA and RNA, in which it forms a base pair with guanine. Symbol: C Cf. cytidine, cytidine monophosphate. [ < G Cytosin (1894); see… …   Universalium

  • cytosine — citozinas statusas T sritis chemija formulė Formulę žr. priede. santrumpa( os) Cyt priedas( ai) Grafinis formatas atitikmenys: angl. cytosine rus. цитозин ryšiai: sinonimas – 4 amino 2 hidroksipirimidinas …   Chemijos terminų aiškinamasis žodynas

  • cytosine — citozinas statusas T sritis augalininkystė apibrėžtis Pirimidino bazė, įeinanti į DNR ir RNR sudėtį. atitikmenys: angl. cytosine rus. цитозин …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • Cytosine deaminase — Identifiers EC number CAS number 9025 05 2 …   Wikipedia

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