arginine
The Columbia Encyclopedia, Sixth Edition | Date: 2008
arginine , organic compound, one of the 20 amino acids 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 urea , the dominant nitrogenous waste product of most mammals. It was discovered in protein in 1895.
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The Columbia Encyclopedia, Sixth Edition 2008
The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press
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Related entries from encyclopedias, dictionaries, and thesauruses
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arginine
Britannica Concise Encyclopedia
... the principal form in which mammals excrete nitrogen compounds. Arginine is used in medicine and biochemical research, in pharmaceuticals, and as a dietary supplement. arginine arginine arginine
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ornithine-arginine cycle
A Dictionary of Food and Nutrition
ornithine-arginine cycle The metabolic pathway for the synthesis of urea .
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Protein Solubility
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... as hydrophilic amino acids and include arginine, lysine, aspartic acid, and glutamic ... acids carry charges — positive for arginine and lysine, negative for aspartic acid ... acid. As the pH increases, lysine and arginine begin to lose their positive charge ...
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histones
A Dictionary of Food and Nutrition
histones Proteins rich in arginine and lysine, soluble in water but not dilute ammonia. They occur mainly in the cell nucleus and are concerned with the regulation of DNA .
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creatine
A Dictionary of Food and Nutrition
creatine A derivative of the amino acids glycine and arginine, important in muscle as a store of phosphate for resynthesis of ATP during muscle contraction and work. Not a dietary essential ...
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