ornithine


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Related to ornithine: Ornithine cycle, Ornithine decarboxylase, Ornithine transcarbamylase deficiency

or·ni·thine

 (ôr′nə-thēn′)
n.
An amino acid, C5H12N2O2, not found in proteins, formed by hydrolyzing arginine and important in the formation of urea.

[ornith(uric acid), an acid found in birds' urine (ornith(o)- + uric acid) + -ine.]

ornithine

(ˈɔːnɪˌθiːn)
n
(Biochemistry) an amino acid produced from arginine by hydrolysis: involved in the formation of urea in the liver; diaminopentanoic acid. Formula: NH2(CH2)3CHNH2COOH
[C19: from ornithuric (acid) secreted in the urine of birds, from ornitho- + uric]

or•ni•thine

(ˈɔr nəˌθin)

n.
an amino acid, H2N(CH2)3CH(NH2)COOH, obtained by the hydrolysis of arginine and occurring as an intermediate compound in the urea cycle of mammals.
[1880–85; ornith(uric acid), secreted by birds + -ine2]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ornithine - an amino acid that does not occur in proteins but is important in the formation of urea
amino acid, aminoalkanoic acid - organic compounds containing an amino group and a carboxylic acid group; "proteins are composed of various proportions of about 20 common amino acids"
Translations
Ornithin
ornithine
ornityna

or·ni·thine

n. ornitina, aminoácido que aunque no está presente en las proteínas desempeña un papel importante en el ciclo de la urea.
References in periodicals archive ?
Given the expected rise in lifestyle related liver diseases, Evonik continues to invest in its line of Ornithine and Arginine based derivatives.
Deficiency of the enzyme ornithine transcarbamoylase (OTC) is the most common inherited urea cycle disorder.
beverage to feature ornithine, an amino acid that when combined with caffeine (from naturally derived tea leaf extract) offers an increase in stamina and concentration over caffeine alone.
Capability of urinary components to enhance ornithine decarboxylase activity and promote urothelial tumorigenicity.
As a baby she had been diagnosed with ornithine transcarbamylase (OTC) deficiency, which means her body builds up dangerous levels of ammonia and need constant monitoring.
Billy was born with a condition called ornithine transcarbamylase deficiency.
Oxidase, ornithine, and lysine decarboxylase were produced, but not arginine dihydrolase, [beta]-galactosidase, or [H.
Through this agreement, Medunik Canada receives the exclusive Canadian rights to market and distribute a new therapeutic option for patients suffering from Urea Cycle Disorders (UCD), a group of rare diseases involving deficiencies of carbamylphosphate synthetase, ornithine transcarbamylase or argininosuccinate sythetase.
These biochemical findings were consistent with ornithine transcarbamylase (OTC) deficiency.
It was positive for ornithine decarboxylase, gelatinase, reduction of nitrates to nitrites, tolerance to 6% NaCl, and assimilation of caprate and malate, but negative for citrate utilization, arginine dihydrolase, lysine decarboxylase, urease, indole production, assimilation of mannose, glucose, arabinose, mannitol, maltose, adipate, and acidification of glucose.
Atropine and hyoscine, derived from phenylalanine, ornithine and arginine, are synthesized almost exclusively in the plant roots.
Putrescine is naturally produced in mammals by an enzyme called ornithine decarboxylase,or ODC, and is easily absorbed and cleared by the body.