| tyrosine-ester sulfotransferase | <enzyme> Also acts on phenols and organic hydroxylamines Registry number: EC 2.8.2.9 Synonym: arylsulfotransferase iv (26 Jun 1999) |
|---|---|
| tyrosine-repressible transaminase | <enzyme> From E coli; catalyses the amination of 2-ketoisocaproate to leucine; encoded by tyrb; a functional leuabcd operon is required for leucine synthesis by this enzyme Registry number: EC 2.6.1.- Synonym: transaminase d, tyrosine-2-ketoisocaproate aminotransferase (26 Jun 1999) |
| tyrosine-trna ligase | <enzyme> An enzyme that activates tyrosine with its specific transfer RNA. Chemical name: L-Tyrosine:tRNA-(Tyr) ligase (AMP-forming) Registry number: EC 6.1.1.1 (12 Dec 1998) |
| tyrosinosis | A very rare, possibly heritable disorder of tyrosine metabolism that may be caused by defective formation of p-hydroxyphenylpyruvic acid oxidase or of tyrosine transaminase; characterised by enhanced urinary excretion of p-hydroxyphenylpyruvic acid and of other tyrosyl metabolites upon ingestion of tyrosine or proteins containing that amino acid. Origin: tyrosine + G. -osis, condition (05 Mar 2000) |
| tyrosinuria | The excretion of tyrosine in the urine. Origin: tyrosine + G. Ouron, urine (05 Mar 2000) |
| tyrosis | Synonym: tyremesis, caseation. Origin: G. Tyros, cheese (05 Mar 2000) |
| tyrosyl aminopeptidase | <enzyme> Preferentially cleaves tyrosine residues from the n-terminus of peptides; also hydrolyses dipeptides having an n-terminal tyrosine and a hydrophobic carboxy-terminal amino acid Registry number: EC 3.4.11.- Synonym: tyrosyl-aminopeptidase, tyr-ap (26 Jun 1999) |
| tyrosyl tRNA synthetase kinase | <enzyme> From postribosomal supernatants of bom:nmri mouse liver; comigrates with tyrosyl trna synthetase during several purification steps Registry number: EC 2.7.1.- Synonym: tyr trna synthetase kinase (26 Jun 1999) |
| tyrosyltubulin ligase | <enzyme> Catalyses reversible, post-translational addition of tyrosine, phenylalanine or dopa to carboxyl terminal of alpha-chain of tubulin Registry number: EC 6.3.2.- Synonym: tubulin-tyrosine ligase, tyrosyl tubulin ligase (26 Jun 1999) |
| tyrosyluria | Enhanced urinary excretion of certain metabolites of tyrosine, such as p-hydroxyphenylpyruvic acid; present in tyrosinosis, scurvy, pernicious anaemia, and other diseases. (05 Mar 2000) |
| tyrothricin | <chemical> A polypeptide antibiotic mixture obtained from bacillus brevis. It consists of a mixture of three tyrocidines (60%) and several gramicidins (20%) and is very toxic to blood, liver, kidneys, meninges, and the olfactory apparatus. It is used topically. Pharmacological action: anti-infective agents, local, antibiotics, peptide. Chemical name: Tyrothricin (12 Dec 1998) |
| tyrotoxicon | <physiology> A ptomaine discovered by Vaughan in putrid cheese and other dairy products, and producing symptoms similar to cholera infantum. Chemically, it appears to be related to, or identical with, diazobenzol. Origin: NL, fr. Gr. Cheese + . See Toxic. Source: Websters Dictionary (01 Mar 1998) |
| tyrotoxism | Poisoning by cheese or any milk product. Origin: G. Tyros, cheese, + toxikon, poison (05 Mar 2000) |
| Tyrrell's fascia | A fascial layer that extends superiorly from the central tendon of the perineum to the peritoneum between the prostate and rectum. Synonym: septum rectovesicale, Denonvilliers' aponeurosis, rectovesical fascia, Tyrrell's fascia. (05 Mar 2000) |
| Tyrrell, Frederick | <person> English anatomist and surgeon, 1797-1843. See: Tyrrell's fascia. (05 Mar 2000) |