tyrosine


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ty·ro·sine

 (tī′rə-sēn′)
n.
A nonessential amino acid, C9H11NO3, that is produced in the body from phenylalanine and is a precursor of melanin and of several neurotransmitters and hormones, such as epinephrine and thyroxine.

[Greek tūros, cheese; see teuə- in Indo-European roots + -ine.]

tyrosine

(ˈtaɪrəˌsiːn; -sɪn; ˈtɪrə-)
n
(Biochemistry) an aromatic nonessential amino acid; a component of proteins. It is a metabolic precursor of thyroxine, the pigment melanin, and other biologically important compounds
[C19: from Greek turos cheese + -ine2]

ty•ro•sine

(ˈtaɪ rəˌsin, -sɪn, ˈtɪr ə-)

n.
a crystalline amino acid, HOC6H4CH2CH(NH2)COOH, abundant in ripe cheese, that acts as a precursor of norepinephrine and dopamine. Abbr.: Tyr ;Symbol: Y
[1855–60; < Greek tȳrós cheese + -ine2]

ty·ro·sine

(tī′rə-sēn′)
A nonessential amino acid. See more at amino acid.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tyrosine - an amino acid found in most proteins; a precursor of several hormones
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
Tyrosin
tyrozyna

tyrosine

n tirosina
References in periodicals archive ?
A urine sample tested positive for SA and tyrosine metabolites at day 7, confirming the diagnosis of HT.
Antigen-mediated mast cell activation depends on aggregation of high-affinity receptors for IgE (Fc[epsilon]RI), which in turn initiates phosphorylation of multiple mast cell proteins on tyrosine (Benhamou et al.
The mutation revs up an enzyme that attaches the amino acid tyrosine to proteins involved in signaling within cells.
a biotechnology company developing targeted covalent drugs that treat diseases through protein silencing, announced today that two poster presentations on AVL-292, a highly selective Bruton's tyrosine kinase (Btk) inhibitor being evaluated for the treatment of several hematologic cancers, will be presented at the 2011 American Society of Hematology (ASH) Annual meeting taking place on December 10-13, 2011 in San Diego, CA.
It inhibits the activity of multiple tyrosine kinases, including MET, VEGFRs and RET.
Princeton University (Princeton, NJ) has patented isolated mammalian nucleic acid molecules encoding receptor protein tyrosine kinases expressed in primitive hematopoietic cells and not expressed in mature hematopoietic cells.
A large majority of neuroblastomas produce catecholamines; the tumor cells thus express tyrosine hydroxylase, the rate-limiting enzyme in catecholamine biosynthesis (1).
Protein tyrosine phosphorylation is a posttranslational modification that is important for the regulation and coordination of various cell proliferations, divisions, growths, and differentiations in normal and cancer cells (Hunter & Cooper, 1985; Hunter, 1987; Hanks et al.
Plants modify tyrosine by adding other molecules to create an enormous array of useful substances.
Studies indicate that ion channel activity is dependent on the phosphorylation status of the channel, and that tyrosine phosphorylation, in lieu of serine or threonine phosphorylation, is essential in regulating channel activity (20,21).
Tryptophan was given in the evening of postpartum day 4, and tyrosine was given the morning of day 5.
In addition, Orfadin (nitisinone) capsules have been approved in all strengths (2 mg, 5 mg, 10 mg and 20 mg) for the treatment of hereditary tyrosinemia type 1 (HT-1) in combination with dietary restriction of tyrosine and phenylalanine, added the company.