purine bases

purine bases
a group of chemical compounds of which purine is the base, including 6-oxypurine (hypoxanthine); 2,6-dioxypurine (xanthine); 6-aminopurine (adenine); 2-amino-6-oxypurine (guanine); 2,6,8-trioxypurine (uric acid); and 3,7-dimethyl xanthine (theobromine). Called also xanthine b's. See illustration.

Purine and pyrimidine bases. (A), Purine and some substituted purine bases occurring in nucleic acids; (B), pyrimidine and some substituted pyrimidine bases occurring in nucleic acids.

Medical dictionary. 2011.

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  • purine bases — purine bases. См. пуриновые основания. (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.

  • purine bases — purino bazės statusas T sritis chemija apibrėžtis Adenino, guanino ir kitų gamtinių purino darinių bendras pavadinimas. atitikmenys: angl. purine bases rus. пуриновые основания ryšiai: sinonimas – purino dariniai sinonimas – purinai …   Chemijos terminų aiškinamasis žodynas

  • purine bases — Nitrogen containing organic cyclic bases that pair with pyrimidine bases in DNA and RNA replication …   Dictionary of invertebrate zoology

  • purine bodies — purine bases …   Medical dictionary

  • Purine — One of the two classes of bases in DNA and RNA. The purine bases are guanine (G) and adenine (A). Uric acid, the offending substance in gout, is a purine end product. * * * The parent substance of adenine, guanine, and other naturally occurring p …   Medical dictionary

  • purine analogue — a structural analogue of one of the purine bases (e.g., adenine, guanine), able to inhibit the biosynthesis of purine bases or to mimic them such that the analogues interfere with the synthesis or function of nucleic acids. Their clinical uses… …   Medical dictionary

  • purine — A heterocyclic compound with a fused pyrimidine/imidazole ring. Planar and aromatic in character. The parent compound for the purine bases of nucleic acids …   Dictionary of molecular biology

  • Purine — Structure et représentation de la 9H Purine ou (3H imidazo)[4,5 d]pyrimidine Général …   Wikipédia en Français

  • purine — [ pyrin ] n. f. • 1904; all. Purin, dér. sav. du rad. du lat. purus « pur » et de urique ♦ Biochim. Substance azotée basique dont la structure comporte deux chaînes fermées (l une à 5, l autre à 6 atomes). ● purine nom féminin Composé… …   Encyclopédie Universelle

  • purine base — n any of a group of crystalline bases comprising purine and bases derived from it (as adenine, caffeine, guanine, theobromine, or xanthine) some of which are components of nucleosides and nucleotides …   Medical dictionary

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