pyrimidine bases

pyrimidine bases
a group of chemical compounds of which pyrimidine is the base, including 2,4-dioxypyrimidine (uracil), 2,4-dioxy-5-methylpyrimidine (thymine), and 2-oxy-4-aminopyrimidine (cytosine), which are common constituents of nucleic acids. See illustration.

Medical dictionary. 2011.

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  • pyrimidine bases — pirimidino bazės statusas T sritis chemija apibrėžtis Bendras citozino, timino ir uracilo pavadinimas. atitikmenys: angl. pyrimidine bases rus. пиримидиновые основания …   Chemijos terminų aiškinamasis žodynas

  • Pyrimidine — One of the two classes of bases in DNA and RNA. The pyrimidine bases are thymine (T) and cytosine (C) in DNA and thymine (T) and uracil (U) in RNA. * * * 1,3 Diazine; a heterocyclic substance, the formal parent of several “bases” present in… …   Medical dictionary

  • pyrimidine analogue — a structural analogue of one of the pyrimidine bases (e.g., cytosine, thymine, uracil), able to inhibit the biosynthesis of pyrimidine bases or to mimic them such that the analogues interfere with the synthesis or function of nucleic acids. Their …   Medical dictionary

  • pyrimidine — (= 1,3 diazine) A heterocyclic 6 membered ring, planar and aromatic in character. The parent compound of the pyrimidine bases of nucleic acid …   Dictionary of molecular biology

  • pyrimidine —    An organic compound, C4H4N2, resulting from the acid hydrolysis of a nucleic acid. A type of nitrogen base; the pyrimidine bases in DNA are cytosine and thymine …   Forensic science glossary

  • Pyrimidine — Structure de la pyrimidine Général Nom IUPAC Pyrimidine …   Wikipédia en Français

  • Bases pyrimidiques — Pyrimidine Pyrimidine Structure de la pyrimidine Général Nom IUPAC Pyrimidine …   Wikipédia en Français

  • pyrimidine — [ pirimidin ] n. f. • fin XIXe; all. Pyrimidin (1855); de pyridine et (a)mid(e) ♦ Biochim. Substance azotée dont la structure comporte une chaîne fermée, à 6 atomes, de formule C4H4N2. ● pyrimidine nom féminin Dénomination courante du composé… …   Encyclopédie Universelle

  • pyrimidine — [pə rim′ə dēn΄, pīrim′ə dēn΄; pir′ə mə dēn΄] n. [Ger pyrimidin < pyridin: see PYRIDINE] 1. a colorless, liquid, crystalline organic compound, C4H4N2, the fundamental form of a group of bases, some of which are constituents of nucleic acid 2.… …   English World dictionary

  • pyrimidine — /puy rim i deen , pi , pir euh mi deen , din/, n. Biochem. 1. a heterocyclic compound, C4H4N2, that is the basis of several important biochemical substances. 2. one of several pyrimidine derivatives, esp. the bases cytosine, thymine, and uracil,… …   Universalium

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