| TR | recovery time; rectal temperature; repetition time; residual tuberculin; terminal repeat; tetrazoliu... |
|---|---|
| TRH | tension-reducing hypothesis; thyrotropin-releasing hormone |
| TRS | testicular regression syndrome; total reducing sugars; tubuloreticular structure |
| TRU | task-related unit; turbidity-reducing unit |
| ACAC | acetyl-coenzyme A cocarboxylase; activated charcoal artificial cell |
| reducing enzyme | <enzyme> An enzyme that catalyses a reduction; since all enzymes catalyze reactions in either direction, any reductase can, under the proper conditions, behave as an oxidase and vice versa, hence the term oxidoreductase. For individual reductase's, see the specific names. Synonym: reducing enzyme. (05 Mar 2000) |
|---|---|
| reducing sugar | A sugar, such as glucose in the urine, that has the property of reducing various inorganic ions, notably cupric ion to cuprous ion. (05 Mar 2000) |
| reducing valve | A valve designed to lower the pressure of a gas coming from a cylinder containing compressed gas under high pressure. (05 Mar 2000) |
| sulfur-reducing bacteria | A group of gram-negative, anaerobic bacteria that is able to oxidise acetate completely to carbon dioxide using elemental sulfur as the electron acceptor. (12 Dec 1998) |
| sulphate-reducing bacterium | <microbiology> A prokaryote which is able to reduce sulphate SO4 (as a terminal electron acceptor) using electrons donated from organic acids, fatty acids, alcohols or hydrogen (electron donors). (19 Jan 1998) |
| acetoacetyl-coenzyme A | Intermediate in the oxidation of fatty acids and in the formation of ketone bodies; also formed from two molecules of acetyl-CoA; major role is condensation with acetyl-CoA to form the important beta-hydroxy-beta-methylglutaryl-CoA. Synonym: acetoacetyl-coenzyme A. (05 Mar 2000) |
| acetyl-coenzyme A | <enzyme> Condensation product of coenzyme A and acetic acid, symbolised as CoAS~COCH3; intermediate in transfer of two-carbon fragment, notably in its entrance into the tricarboxylic acid cycle and in fatty acid synthesis. This coenzyme plays a huge role in intermediary metabolism, in which cells synthesise, break down or use nutrient molecules for energy production, growth, etc. Acetyl-coenzyme A synthase is found in bacteria and plants and catalyses the reaction in which acetate enters metabolic pathways and forms acetyl-coenzyme A. Synonym: acetyl-coenzyme A, active acetate. (05 Mar 2000) |
| acetyl-coenzyme A-deacetylvindoline 4-O-acetyltransferase | <enzyme> Catalyses the final step in vindoline biosynthesis in catharanthus roseus Registry number: EC 2.3.1.107 Synonym: acadv-acetyltransferase, acetylcoenzyme a-deacetylvindoline-17-o-acetyltransferase (26 Jun 1999) |
| acetyl-coenzyme A-salutaridinol-7-O-acetyltransferase | <enzyme> Catalyses the transfer of acetyl from acetyl coenzyme a to the 7-oh group of salutaridinol which yields salutaridinol-7-o-acetate, an intermediate in morphine biosynthesis; from papaver somniferum plant cell cultures Registry number: EC 2.3.1.- Synonym: acetyl CoA-salutaridinol-7-o-acetyltransferase, salutaridinol-7-o-acetyltransferase (26 Jun 1999) |
| acyl-coenzyme A | RCH2COSCoA or RCH2CO~SCoA;condensation product of a carboxylic acid and coenzyme A, and metabolic intermediate of importance, notably in the oxidation and synthesis of fat. Synonym: acyl-coenzyme A. (05 Mar 2000) |
| arachidonoyl coenzyme A lysophosphatide acyltransferase | <enzyme> Involved in arachidonate uptake into membrane phospholipids Registry number: EC 2.3.1.- Synonym: arachidonoyl CoA lysophosphatide acyltransferase, a-CoA-l-acyltransferase (26 Jun 1999) |
| benzoate coenzyme A ligase | <enzyme> From rhodopseudomonas palustris; involved in anaerobic degradation of benzoate; high specificity for benzoate and fluorobenzoate Registry number: EC 6.2.1.25 Synonym: benzoate-CoA ligase, benzoic acid coenzyme a ligase, benzoyl-CoA ligase, benzoyl CoA synthetase (26 Jun 1999) |
| benzoyl-coenzyme A-4-oxidoreductase | <enzyme> Acts on an aromatic ch-ch bond; catalyses the conversion of 4-hydroxybenzoyl-CoA to benzoyl-CoA Registry number: EC 1.3.99.- Synonym: benzoyl-CoA-4-oxidoreductase, 4-hydroxybenzoyl-CoA reductase (dehydroxylating), hbab gene product, hbac gene product, hbad gene product (26 Jun 1999) |
| beta-ketoadipyl-coenzyme A thiolase | <enzyme> Last enzyme in the beta-ketoadipate pathway in pseudomonas putida; genbank l33795 Registry number: EC 2.3.1.- Synonym: pcaf gene product, beta-ketoadipyl-CoA thiolase (26 Jun 1999) |
| carnitine coenzyme A ligase | <enzyme> Caic protein isolated from e. Coli Registry number: EC 6.2.1.- Synonym: carnitine CoA ligase, crotonobetaine CoA ligase, caic gene product (26 Jun 1999) |