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Wiktionary
glutamine

n. (context amino acid English) A nonessential amino acid C5H10N2O3 found in most animal and plant proteins.

WordNet
glutamine

n. a crystalline amino acid occurring in proteins; important in protein metabolism

Wikipedia
Glutamine

Glutamine (abbreviated as Gln or Q; encoded by the codons CAA and CAG) is an α-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated −NH form under biological conditions), an α-carboxylic acid group (which is in the deprotonated −COO form under biological conditions), and a side chain amide which replaces the side chain hydroxyl of glutamic acid with an amine functional group, classifying it as a charge neutral, polar (at physiological pH) amino acid. It is non-essential and conditionally essential in humans, meaning the body can usually synthesize sufficient amounts of it, but in some instances of stress, the body's demand for glutamine increases and glutamine must be obtained from the diet.

In human blood, glutamine is the most abundant free amino acid, with a concentration of about 500–900 µmol/l.

Usage examples of "glutamine".

Glutamic acid (which differs from glutamine as aspartic acid differs from asparagine), 16.

Since most of the abbreviations consist of the first three letters of the name, they are not difficult to memorize: glycine gly alanine ala valine val leucine leu asparagine asp'Ntb aspartic acid asp glutamine ghrNH2 glutamic acid glu THE HUMAN BRAIN isoleucine proline phenylalanine tyrosine tryptophan serine threonine ileu pro phe tyr try ser thr lysine histidine lys his arginine methionine arg met cystine cysteine cy-S-cy-SH Of the abbreviations that are more than the first three letters of the names, ileu, asp-NH2, and ghrNH2 should be clear.