arginine


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arginine

(är`jənĭn), organic compound, one of the 20 amino acidsamino acid
, any one of a class of simple organic compounds containing carbon, hydrogen, oxygen, nitrogen, and in certain cases sulfur. These compounds are the building blocks of proteins.
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 commonly found in animal proteins. Only the l-stereoisomer participates in the biosynthesis of proteins. Its basic side chain adds a positive charge and hence a greater degree of water-solubility to proteins in neutral solution. Although arginine can be synthesized from cellular metabolites, it is usually considered essential to the diet of children for the maintenance of normal rates of growth. Arginine is the direct metabolic precursor of ureaurea
, organic compound that is the principal end product of nitrogen metabolism in most mammals. Urea was the first animal metabolite to be isolated in crystalline form; its crystallization was described in the early 18th cent.
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, the dominant nitrogenous waste product of most mammals. It was discovered in protein in 1895.

arginine

[′ar·jə‚nēn]
(biochemistry)
C6H14N4O2 A colorless, crystalline, water-soluble, essential amino acid of the α-ketoglutaric acid family.
References in periodicals archive ?
Chapter Four Arginine Production by Regions By Technology By Applications
In the eighth experiment, the reaction between Arginine and Zn nitrate with Na was investigated without using heat.
Arginine is important for the transport, storage and removal of excess nitrogen and ammonia.
A breakthrough therapy for dentin hypersensitivity: how dental products containing 8c1/0 arginine and calcium carbonate work to deliver effective relief of sensitive teeth.
Zajac A, Poprzecki S, Zebrowska A, Chalimoniuk M, Langfort J (2010) Arginine and ornithine supplementation increases growth hormone and insulin-like growth factor-1 serum levels after heavy-resistance exercise in strength-trained athletes.
Ion suppression was analyzed with a standard T-experiment (12) by infusing arginine internal standard (25 [micro]mol/L, 10 [micro]L/min) into the eluent from the chromatographic development of a prepared normal human plasma sample (see online Supplemental Fig.
Of stroke patients with a poor prognosis, about 81 percent carried two copies of the arginine variant.
Arginine and citrulline in jejunum and kidney were analyzed by HPLC methods involving precolumn derivatization with o-phthaldialdehyde (OPA) (Wu et al.
This compound is of scientific interest because once ingested it can be converted into arginine, an amino acid that plays a role in immune system activity, as well as in the dilation of blood vessels.
Pre- treatment with L- arginine significantly decreased plasma-ALT, AST and ischemic zone after 1 h ischemia followed by 3 h of reperfusion.
Citrulline is turned into an amino acid called arginine when mixed with the body's enzymes.