A (adenine)

A (adenine)
In genetics, A stands for adenine, 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 molecule called a base. The bases are the "letters" that spell out the genetic code. In DNA, the code letters are A, T, G, and C, which stand for the chemicals adenine, thymine, guanine, and cytosine, respectively. In DNA base pairing, adenine always pairs with thymine, and guanine always pairs with cytosine. Adenine is also one of the bases in RNA. There it always pairs with uracil (U). The base pairs in RNA are therefore A-U and G-C.

Medical dictionary. 2011.

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  • 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 phosphoribosyltransferase deficiency — (also called 2,8 dihydroxyadenine urolithiasis) is an autosomal recessivecite journal |pmid=8976113 |year=1996 |month=Dec |author=Kamatani, N |title=Adenine phosphoribosyltransferase(APRT) deficiency |volume=54 |issue=12 |pages=3321–7 |issn=0047… …   Wikipedia

  • 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 deoxyriboside — adenine deoxyriboside. См. дезоксиаденозин. (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 arabinoside — n VIDARABINE * * * vidarabine …   Medical dictionary

  • 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

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