arginine

/ahr"jeuh neen', -nuyn', -nin/, n. Biochem.
an essential amino acid, C6H14N4O2: the free amino acid increases insulin secretion and is converted to urea in the liver by arginase. Abbr.: Arg; Symbol: R
[1885-90; < G Arginin, a name unexplained by its originators]

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One of the essential amino acids, particularly abundant in histones and other proteins associated with nucleic acids.

It plays an important metabolic role in the synthesis of urea, the principal form in which mammals excrete nitrogen compounds. Arginine is used in medicine and biochemical research, in pharmaceuticals, and as a dietary supplement.

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      an amino acid obtainable by hydrolysis of many common proteins but particularly abundant in protamines and histones, proteins associated with nucleic acids. First isolated from animal horn (1895), arginine plays an important role in mammals in the synthesis of urea, the principal form in which these species excrete nitrogen. Arginine is one of several nonessential amino acids for adult mammals; i.e., they can synthesize it from glutamic acid and do not require dietary sources.

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Universalium. 2010.

Look at other dictionaries:

  • Arginine — L ou S(+) arginine (haut)   et   D ou R( ) arginine (bas) …   Wikipédia en Français

  • arginine — [ arʒinin ] n. f. • 1898; all. Arginin (1886), du rad. du lat. argentum, le nitrate d arginine ayant un aspect argenté ♦ Biochim. Acide aminé naturel possédant une seconde fonction basique. ● arginine nom féminin Aminoacide dérivé de la guanidine …   Encyclopédie Universelle

  • arginine — [är′jənēn΄, är′jənin, är′jənīn΄] n. [Ger arginin < ? Gr arginoeis, white, gleaming (its first discovered salts were silvery) + in, INE3] a nonessential amino acid, NHC(NH2)NH(CH2) 3CH(NH2)COOH, considered essential during periods of rapid… …   English World dictionary

  • Arginine — L Arginine IUPAC name …   Wikipedia

  • Arginine — An amino acid, one of the 20 amino acids that serve as the building blocks in protein. Arginine is not an essential amino acid. (It is not essential to the diet, but can be made by the body from other substances.) However, it is usually… …   Medical dictionary

  • arginine — One of the twenty common amino acids (building blocks of proteins). Arginine is being studied as a nutritional supplement in the treatment and prevention of cancer and other conditions. Also called L arginine …   English dictionary of cancer terms

  • arginine — argininas statusas T sritis chemija formulė H₂NC(=NH)NH(CH₂)₃CH(NH₂)COOH santrumpa( os) Arg, R atitikmenys: angl. arginine rus. аргинин ryšiai: sinonimas – 2 amino 5 guanidinopentano rūgštis …   Chemijos terminų aiškinamasis žodynas

  • arginine — noun Etymology: German Arginin Date: 1886 a crystalline basic amino acid C6H14N4O2 derived from guanidine …   New Collegiate Dictionary

  • arginine — (= Arg; R; 174D) An essential amino acid; a major component of proteins and contains the guanido group that has a pKa of greater than 12, so that it carries a permanent positive charge at physiological pH …   Dictionary of molecular biology

  • arginine — noun An amino acid found in animal foods that plays an important role in several physiological processes. Syn: Arg …   Wiktionary

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