purine

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pu·rine

 (pyo͝or′ēn′)
n.
1. A double-ringed, crystalline organic base, C5H4N4, that is the parent compound of a large group of biologically important compounds.
2. Any of a group of substituted derivatives of purine, including the nitrogen bases adenine and guanine, which are components of nucleic acids. Uric acid, caffeine, theobromine, and theophylline are also purines.

[German Purin : blend of Latin pūrus, clean; see pure, and New Latin ūricus, uric (from Greek ouron, urine) + -in, -in, -ine.]

purine

(ˈpjʊəriːn) or

purin

n
1. (Elements & Compounds) a colourless crystalline solid that can be prepared from uric acid. Formula: C5H4N4
2. (Elements & Compounds) Also called: purine base any of a number of nitrogenous bases, such as guanine and adenine, that are derivatives of purine and constituents of nucleic acids and certain coenzymes
[C19: from German Purin; see pure, uric, -ine2]

pu•rine

(ˈpyʊər in, -ɪn)

n.
1. a white, crystalline compound, C5H4N4, from which is derived a group of compounds including uric acid, xanthine, and caffeine.
2. one of several purine derivatives, esp. the bases adenine and guanine, which are fundamental constituents of nucleic acids.
[1895–1900; < German Purin. See pure, uric, -ine2]

pu·rine

(pyo͝or′ēn′)
Any of a group of organic compounds containing two rings of alternating carbon and nitrogen atoms. Purines include caffeine and uric acid, as well as the two bases adenine and guanine, which are components of DNA and RNA.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.purine - any of several bases that are derivatives of purine
alkali, base - any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water; "bases include oxides and hydroxides of metals and ammonia"
adenine, A - (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
guanine, G - a purine base found in DNA and RNA; pairs with cytosine
2.purine - a colorless crystalline organic base containing nitrogen; the parent compound of various biologically important substances
alkali, base - any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water; "bases include oxides and hydroxides of metals and ammonia"
Translations
purine

purine

n purina
References in periodicals archive ?
Uric acid is a waste product of substances called purines, which are normally excreted through urine.
Protozoa are unable to synthesize purines or pyrimidines, but can incorporate free adenine, guanine and uracil into their nucleic acids.
The current dietary recommendation for gout is a diet low in purines (which are found in certain meats and seafood), but the diet has limited effectiveness and many gout patients are unable to fully adhere to it.
Uric acid forms when your body breaks down substances known as purines, found in your body's tissues and in a wide array of foods.
Dr Rhys-Dillon said: "If you have gout, you can help yourself by avoiding food and drink containing high levels of purines, the protein that leads to a high uric acid.
The nitrogenous bases Purines [adenine (A) and guanine (G)] and Pyrimidines [Cytosine (C), Uracil (U)and Thymine (T)] are essential building blocks of RNA and DNA.
Also high in purines (50-150mg/100gm) are: crab, shrimp, asparagus, cauliflower, mushrooms, spinach.
The amount of absorbed microbial purines (absP) was calculated (mmol/d) using the PD excretion by the following equation: absP = (PD 0.
Foods especially rich in purines include organ meats, such as liver.
Purines are compounds that yield uric acid when they are broken down in the body.
Smaller amounts of purines are found in all meat, fish, and poultry, so limit your consumption to a maximum of six ounces daily.