| LD4 | isoenzyme of lactate dehydrogenase found in the liver |
|---|---|
| LD5 | isoenzyme of lactate dehydrogenase found in the liver and muscles |
| LDH | lactate dehydrogenase; low-dose heparin |
| LDM | lactate dehydrogenase, muscle; limited dorsal myeloschisis |
| SLD, SLDH | serum lactate dehydrogenase; sublethal damage |
| lactate 2-mono-oxygenase | A flavoprotein oxidoreductase catalyzing oxidation (with O2) of l-lactate to acetate plus CO2 and water. Synonym: lactic acid oxidative decarboxylase. (05 Mar 2000) |
|---|---|
| lactate-2-sulfate sulfatase | <enzyme> Shows no activity for (l)-isomer Registry number: EC 3.1.6.- Synonym: d-lactate-2-sulfate sulfatase, d-lactate-2-sulfatase (26 Jun 1999) |
| lactate dehydratase | <enzyme> From cell extracts of clostridium propionicum; catalyses the dehydration of (r)-lactate to acrylate Registry number: EC 4.2.1.54 Synonym: lactyl CoA dehydratase, lactyl coenzyme a dehydratase, lactoyl-CoA dehydratase (26 Jun 1999) |
| lactate level | A test that measures the amount of lactic acid in the blood. Lactic acid is an intermediate product of carbohydrate metabolism and is derived mainly from muscle cells and red blood cells. Exercise will normally raise lactic acid levels. Conditions of oxygen deprivation (for example shock, heart failure, lung disease) will trigger anaerobic metabolism within muscle tissue resulting in lactic acid build up in the tissues. Normal lactic acid levels are 4.5 to 19.8 mg/dl. (27 Sep 1997) |
| acetaldehyde dehydrogenase | <enzyme> Works with both nad and nadp Registry number: EC 1.2.1.5 Synonym: aldehyde dehydrogenase (NADP+), naho gene product (26 Jun 1999) |
| acetoin dehydrogenase | <enzyme> An enzyme that catalyses the conversion of acetoin to diacetyl in the presence of NAD. Chemical name: Acetoin:NAD+ oxidoreductase Registry number: EC 1.1.1.5 (12 Dec 1998) |
| acetol dehydrogenase | <enzyme> Forms methylglyoxal; uses nad+ Registry number: EC 1.1.1.- Synonym: 1-hydroxyacetone dehydrogenase (26 Jun 1999) |
| acyl-ACP dehydrogenase | enoyl-ACP reductase (NADPH) |
| acyl-CoA dehydrogenase | <enzyme> See also records for specific fatty acyl groups which have full EC nomenclature number; electron-transferring flavoprotein system reducing ubiquinone and other acceptors; formerly EC 1.3.2.2 Registry number: EC 1.3.99.3 Synonym: fatty-acyl CoA dehydrogenase, palmitoyl-CoA dehydrogenase, short-chain acyl-CoA dehydrogenase, acyl-coenzyme a dehydrogenase, lauroyl-CoA oxidase (26 Jun 1999) |
| acyl-CoA dehydrogenase (NADPH+) | Enzyme catalyzing the reversible reduction of enoyl-CoA derivatives of chain length 4 to 16, with NADPH as the hydrogen donor, forming acyl-CoA and NADP+. Synonym: enoyl-CoA reductase. (05 Mar 2000) |
| alanopine dehydrogenase | <enzyme> Catalyses reductive elimination between pyruvate and alanine, or glycine, utilizing NADH as coenzyme, producing 2,2'-iminodipropionic acid (alanopine) Registry number: EC 1.5.1.- (26 Jun 1999) |
| alcohol dehydrogenase | <enzyme> An enzyme that catalyses reversibly the final step of alcoholic fermentation by reducing an aldehyde to an alcohol. In the case of ethanol, acetaldehyde is reduced to ethanol in the presence of NADH and hydrogen. The enzyme is a zinc protein which acts on primary and secondary alcohols or hemiacetals. Chemical name: Alcohol:NAD+ oxidoreductase Registry number: EC 1.1.1.1 (12 Dec 1998) |
| alcohol dehydrogenase (acceptor) | An oxidoreductase that reversibly converts primary alcohols to aldehydes with an H acceptor other than NADP+. (05 Mar 2000) |
| alcohol dehydrogenase (NADP+) | An oxidoreductase reversibly converting alcohols to aldehydes (or ketones) with NAD(P)+ as H acceptor. Synonym: aldehyde reductase, DPNH aldehyde transhydrogenase. (05 Mar 2000) |
| aldehyde dehydrogenase | <enzyme> An enzyme that oxidises an aldehyde in the presence of NAD+ and water to an acid and NADH. Before 1978, it was classified as EC 1.1.1.70. Chemical name: Aldehyde:NAD+ oxidoreductase Registry number: EC 1.2.1.3 (12 Dec 1998) |