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 ?
To reveal the distribution of alanine and arginine spots on the narrow band TLC plate, FTIR mapping technique under linear scan mode was utilized.
Arginine is an important amino acid which is an essential precursor for the synthesis of molecules with wide ranging metabolic roles, including nitric oxide.
The unique arginine-rich composition of SNBPs of the protamine type (up to 80% arginine in the squid Loligo sp.) (Lewis et al., 2004a) and their relatively small size of not larger than 100 amino acids (Daban et al., 1995) make these proteins very different from histones.
It is known [47] that ATP binds to the loop close to the binding site of arginine. This helps the forming of the arginyl-AMP.
Hazen et al., "An association between L-arginine/asymmetric dimethyl arginine balance, obesity, and the age of asthma onset phenotype," American Journal of Respiratory and Critical Care Medicine, vol.
It can require a lot of watermelon to boost blood levels of arginine, he adds.
In addition to standard chow food, group A received 7 days of glutamine 1.44 g/kg/day, arginine 1.44 g/kg/day and HMB 2.6 g/kg/day (Abound Abbott Nutrition, Access Business Group, 19600 6th Street, Lakeview, CA92567-8403, USA) mixed in still tap water and continued at the same dose for 7 more days after the operation until sacrificed.
Arginine is a component needed to produce nitric oxide, a substance that relaxes the blood vessels, improves blood flow and may save a person from a heart attack and a stroke.
Treatment with 2.5 mM arginine as foliar spray mitigated salt stress by inducing enzyme activities responsible for antioxidation, e.g., superoxide dismutase, ascorbate peroxidase, glutathione reductase, detoxification as well as improving all the above recorded parameters.
It is a functional polymorphism which is found on exon 4 and causes the substitution of proline with arginine (arg) residue at the regulatory portion of TP53 gene, resulting in altered regulation of apoptosis.
People with major depressive disorder (MDD) have lower levels of naturally occurring arginine in their body than their non-depressed controls, a study has found.
Perkins-Veazie et al., "Dietary supplementation with watermelon pomace juice enhances arginine availability and ameliorates the metabolic syndrome in zucker diabetic fatty rats," Journal of Nutrition, vol.