purine

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purine

 [pu´rēn]
a heterocyclic compound that is the nucleus of the purine bases such as adenine and guanine (which occur in DNA and RNA), and xanthine and hypoxanthine.

pur·ine (Pur),

(pyūr'ēn, -rin),
The parent substance of adenine, guanine, and other naturally occurring purine "bases."

purine

(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.

pu·rine

(pyūr'ēn)
The parent substance of adenine, guanine, and other naturally occurring so-called purine bases; not known to exist as such in mammals.

purine

one of two types of base found in NUCLEIC ACIDS, having a double ring structure; see ADENINE and GUANINE. Purines always pair with PYRIMIDINES in the two strands of DNA, ensuring a parallel-sided molecule.

Purine

A white crystalline substance that is one of the building blocks of DNA. Uric acid is produced when purine is broken down in the body.
Mentioned in: Gout, Uric Acid Tests
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(2003), a PSRG-FE e considerada a fracao de glomalina localizada em sitios do solo que sao mais susceptiveis a producao e decomposicao recentes e, portanto, que exibem maiores variacoes de carater microambiental (PURIN, 2005).
Lou Purin emphasized, "We are able to utilize local suppliers and source all our materials from the Wilmington area.
Nine-year-old beagle Purin holds the record for the |most balls caught by a dog with her paws in one minute
Coronel Portillo, Puerto Purin 8[grados]44'59.2" [S]/ 74[grados]8'19.52"W 122m 17.vii.2008.
Se utilizo purin de cerdo como inoculo en un 10% (4.7 litros) del volumen de la parte liquida del biodigestor.
La riqueza en materia organica del purin tiene un elevado valor para la agricultura por el ahorro de abonos quimicos, pero el uso del purin como fertilizante tiene que ser controlado debido a la alta variabilidad de nutrientes que pueden contaminar el suelo, el agua y el aire.
Siendo r la tasa de actualizacion de periodo; [beta] el numero de dias del ciclo transcurridos desde su inicio/ numero total de dias del ciclo; [I.sub.v,i] los ingresos por verraco en el ano i (ingreso verraco como reproductor, ingreso verraco desecho e ingreso verraco purin); [C.sub.v,i] los Costes del verraco en el ano i.
Purin holds the record for balls <Bcaught by a dog in one minute