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 ?
threonin, arginin, tryptophan, leucine, lysine, alanin and glutamic acid), which may be associated with high flavor and palatability in KNP (Hwang et al., 2004).
Antibodies against citrullinated peptides, the peptides post-translationally modified by the conversion of arginin to citrulline, have gained importance with the contention to be specific serological markers for RA (1, 2).
Arginin und Taurin--preventive Nahrungsfaktoren bei kardiovaskula-ren Erkrankungen?
The role of domain 11 in binding to different substrates has been demonstrated in several zinc-metallopeptidases, including APN from mammals (specifically due to the presence of arginin residues in the active site) (Cristofoletti y Terra, 2000).