purine


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Related to purine: uric acid, low purine diet

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 ?
Urinary excretion of allantoin and allantoin precursors by sheep after different rates of purine infusion into the duodenum.
We hypothesized that gout patients may have a different profile of purine precursors than do asymptomatic people with hyperuricemia and that concentrations of these compounds may reflect disorders of purine metabolism.
To help keep the uric acid production in check, it is often helpful to reduce the consumption of foods high in purine.
Specifically, nucleic acids or their constituent purine or pyrimidine bases act as internal microbial markers of microbial protein synthesis [2].
Forodesine hydrocloride is an orally-available transition-state analog inhibitor of purine nucleoside phosphorylase (PNP), a purine salvage pathway enzyme that is essential for the proliferation of T-cells and B-cells.
Since uric acid forms when your body metabolizes substances called purines, experts historically have advised gout patients to help lower uric acid by minimizing or avoiding purine-rich foods, such as red meat and organ meats, game meats, seafood, poultry, beer, distilled spirits, and foods and beverages containing high-fructose corn syrup.
Lowering purine in your diet can help you lower the rate of gout attacks and flare-ups and could also help you lose weight.
Results of quantitaion of Purine and Pyrimidine bases using Ethyl Chloroformate as Derivatizing Reagent.
Lowest in purine (0-50mg/100gm) are: milk, nuts, eggs, cheese, pasta, bread and cereals, chocolate, and butter/margarine.
Total excretion of purine derivatives (PD) expressed in mmol/d was calculated by the sum of the excretions of allantoin and uric acid in the urine, and by the amount of allantoin excreted in the milk.
Total excretion of purine derivatives was calculated by summation of the amounts of allantoin and uric acid excreted in the urine and the amount of allantoin secreted in milk, expressed in mmol [day.