adenine


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adenine

(ăd`ənĭn, –nīn, –nēn), organic base of the purinepurine,
type of organic base found in the nucleotides and nucleic acids of plant and animal tissue. The German chemist Emil Fischer did much of the basic work on purines and introduced the term into the chemical literature in the early 20th cent.
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 family. Adenine combines with the sugar riboseribose
, monosaccharide carbohydrate of universal distribution in living tissue, found in ribonucleic acid (RNA; see nucleic acid), free nucleotides, and various coenzymes.
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 to form adenosine, which in turn can be bonded with from one to three phosphoric acid units, yielding the three nucleotides adenosine monophosphateadenosine monophosphate
(AMP) , organic compound composed of an adenine base, the sugar ribose, and one phosphate unit. AMP is one of the possible products of the hydrolysis of adenosine triphosphate (ATP) and is therefore important in the transfer of chemical energy during
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, adenosine diphosphate, and adenosine triphosphateadenosine triphosphate
(ATP) , organic compound composed of adenine, the sugar ribose, and three phosphate groups. ATP serves as the major energy source within the cell to drive a number of biological processes such as photosynthesis, muscle contraction, and the synthesis of
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. These adenine derivatives perform important functions in cellular metabolism. Adenine is one of four nitrogenous bases utilized in the synthesis of nucleic acidsnucleic acid,
any of a group of organic substances found in the chromosomes of living cells and viruses that play a central role in the storage and replication of hereditary information and in the expression of this information through protein synthesis.
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. A modified form of adenosine monophosphate is thought to be a secondary messenger in the propagation of many hormonal stimuli. Adenine is an integral part of the structure of many coenzymescoenzyme
, any one of a group of relatively small organic molecules required for the catalytic function of certain enzymes. A coenzyme may either be attached by covalent bonds to a particular enzyme or exist freely in solution, but in either case it participates intimately in
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.

adenine

[′ad·ən‚ēn]
(biochemistry)
C5H5N5 A purine base, 6-aminopurine, occurring in ribonucleic acid and deoxyribonucleic acid and as a component of adenosine triphosphate.
References in periodicals archive ?
1 mL of rat liver microsomes in the presence of 1 [micro]mol of reduced nicotinamide adenine dinucleotide phosphate (NADPH) for 30 min in a final volume of 1 mL of 0.
A distinctive signature and location, as well as mutations in only the adenine nucleotide, are hallmarks of this mechanism.
The group localized it to an adenine equivalent of the one described by Moore's team.
Utilization of oxigen and reduced nicotinamide adenine dinucleotide phosphate by human placental microsomes during aromatization of androstenedione.
Each symbol represents the stuff of life--the chemical bases adenine, thymine, guanine, and cytosine that make up the genetic code of every living organism on Earth.
DNA consists of two long strands that twist around each other like a spiral staircase, the strands are held together by four chemical bases: adenine (A), thymine (T), guanine (G), and cytosine (C).
International Symposium on Adenosine and Adenine Nucleotides in Ferrara Italy the last weekend in May: http://web.
Tenders are invited for Supply of Nicotinamide Adenine Dinucleotide (Adenylate-32p)
The team found adenine and guanine, which are components of DNA nucleobases.
A Structure for Deoxyribose Nucleic Acid," published in Nature in 1953, the two scientists described the double-helical form of the molecule, shaped like a twisted ladder, in which each rung is made up of four nucleotides: adenine, thymine, cytosine, and guanine (typically abbreviated as A, T, C, and G).
DNA is composed of many smaller units known as bases (nitrogen molecules called adenine, guanine, thymine, and cytosine).
NIA 24 Niacin-Powered Skin Therapy is based on Pro-Niacin(TM), a proprietary, patented niacin derivative that allows niacin to be delivered to skin at optimal rates allowing conversion to its active form, nicotinamide adenine dinucleotide or NAD.