adenine


adenine
/ad"n in, -een', -uyn'/, n.
Biochem. a purine base, C5H5N5, one of the fundamental components of nucleic acids, as DNA, in which it forms a base pair with thymine, and RNA, in which it pairs with uracil. Symbol: A
[1880-85; < G Adenin; see ADEN-, -INE2]

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Organic compound of the purine family, often called a base, consisting of two rings, each containing both nitrogen and carbon atoms, and an amino group.

It occurs free in tea and in combined form in nucleic acids, ATP, vitamin B12, and several coenzymes. In DNA its complementary base is thymine. It or its corresponding nucleoside or nucleotide may be prepared from nucleic acids by selective techniques of hydrolysis.

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      organic compound belonging to the purine family, occurring free in tea or combined in many substances of biological importance, including the nucleic acids (nucleic acid), which govern hereditary characteristics of all cells.

      Partial decomposition of ribonucleic and deoxyribonucleic acids yields mixtures from which the compounds adenylic acid and deoxyadenylic acid, respectively, may be separated. These acids, called nucleotides (nucleotide), are phosphate esters of adenosine and deoxyadenosine, which are smaller units (nucleosides) composed of adenine and either ribose or deoxyribose. Compounds of adenine include vitamin B12 as well as adenosine triphosphate and other coenzymes (substances that act in conjunction with enzymes).

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Universalium. 2010.

Look at other dictionaries:

  • Adenine — Adénine Adénine Structure de la 9H Adénine …   Wikipédia en Français

  • Adénine — Structure de la 9H Adénine Général …   Wikipédia en Français

  • Adenine — Adenine, benannt nach der Nukleinbase Adenin, ist eine Skriptsprache, welche im Rahmen des Haystack und Oxygen Projekts vom MIT Computer Science And Artificial Intelligence Laboratory (CSAIL) in Zusammenarbeit mit NTT entwickelt wird. Ein… …   Deutsch Wikipedia

  • adénine — [ adenin ] n. f. • 1885 Adenin, en all.; du gr. adên « glande » et ine ♦ Biochim. Base azotée purique, l une des quatre bases essentielles des acides nucléiques. ● adénine nom féminin Base purique constitutive des acides nucléiques (A.D.N., A.R.N …   Encyclopédie Universelle

  • adenine — adenine. См. аденин. (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.

  • adenine — (n.) crystaline base, 1885, coined by German physiologist/chemist Albrecht Kossel (1853 1927) from Gk. aden gland + chemical suffix INE (Cf. ine) (2). So called because it was derived from the pancreas of an ox …   Etymology dictionary

  • adenine — [ad′ə nēn΄, ad′ənin΄] n. [ ADEN(O) + INE3] a white, crystalline purine base, C5H5N5, contained in the DNA, RNA, and ADP of all tissue: it links with thymine in the DNA structure …   English World dictionary

  • Adenine — chembox ImageFile1 = Adenine chemical structure.png ImageSize1 = 150px ImageFileL2 = Adenine 3D balls.png ImageSizeL2 = 100px ImageFileR2 = Adenine 3D vdW.png ImageSizeR2 = 100px IUPACName = 9H purin 6 amine OtherNames = 6 aminopurine Section1 =… …   Wikipedia

  • Adenine (A) — One member of the A T (adenine thymine) base pair in DNA. The other base pair in DNA is G C (guanine cytosine). Each base pair forms a rung of the DNA ladder. A DNA nucleotide is made of a molecule of sugar, a molecule of phosphoric acid, and a… …   Medical dictionary

  • adenine — One of the two major purines (the other being guanine) found in both RNA and DNA, and also in various free nucleotides of importance to the body, such as AMP (adenylic acid), ATP, NAD+ and NADP+, and FAD; in all these smaller compounds, a. is… …   Medical dictionary


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