Tyrosine
noun, Biochemistry.
1.
a crystalline amino acid, HOC 6 H 4 CH 2 CH(NH 2)COOH, abundant in ripe cheese, that acts as a precursor of norepinephrine and dopamine. Symbol: Y.
Abbreviation: Tyr;
noun
1.
an aromatic nonessential amino acid; a component of proteins. It is a metabolic precursor of thyroxine, the pigment melanin, and other biologically important compounds
tyrosine ty·ro·sine (tī’rə-sēn’)
n.
Abbr. Tyr
A white crystalline amino acid that is derived from the hydrolysis of proteins such as casein and is a precursor of epinephrine, thyroxine, and melanin.
tyrosine
(tī’rə-sēn’)
A nonessential amino acid. Chemical formula: C9H11NO3. See more at amino acid.
Read Also:
- Tyrosinemia
noun, Pathology. 1. an inherited disorder of tyrosine metabolism that can lead to liver and kidney disease and mental retardation unless controlled by a special diet. tyrosinemia ty·ro·si·ne·mi·a (tī’rə-sĭ-nē’mē-ə) n. An inherited disorder of tyrosine metabolism marked by an increase in the concentration of tyrosine in the blood, an increase in urinary excretion of tyrosine […]
- Tyrosinosis
noun, Pathology. 1. a condition characterized by abnormally large amounts of tyrosine in the urine, caused by faulty metabolism. tyrosinosis ty·ro·si·no·sis (tī’rə-sĭ-nō’sĭs) n. A rare, possibly inherited disorder of tyrosine metabolism characterized by enhanced urinary excretion of certain metabolites upon ingestion of tyrosine.
- Tyrosinuria
tyrosinuria ty·ro·si·nu·ri·a (tī’rə-sĭ-nur’ē-ə, -nyur’-) n. Excretion of tyrosine in the urine.
- Tyrosyluria
tyrosyluria ty·ro·syl·u·ri·a (tī’rə-sĭ-lur’ē-ə) n. Enhanced urinary excretion of metabolites of tyrosine, as that occurring in tyrosinosis, scurvy, and pernicious anemia.
- Tyrothricin
noun 1. an antibiotic, obtained from the soil bacterium Bacillus brevis, consisting of tyrocidine and gramicidin and active against Gram-positive bacteria such as staphylococci and streptococci: applied locally for the treatment of ulcers and abscesses tyrothricin ty·ro·thri·cin (tī’rō-thrī’sĭn) n. A gray-brown mixture consisting mainly of tryocidine and gramicidin, used as a topical antibiotic in treating […]