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Reaction catalyzed by lactate dehydrogenase. Lactate dehydrogenase catalyzes the interconversion of pyruvate and lactate with concomitant interconversion of NADH and NAD +.It converts pyruvate, the final product of glycolysis, to lactate when oxygen is absent or in short supply, and it performs the reverse reaction during the Cori cycle in the liver.
Lactate dehydrogenase A catalyzes the inter-conversion of pyruvate and L-lactate with concomitant inter-conversion of NADH and NAD +. LDHA is found in most somatic tissues, though predominantly in muscle tissue and tumors, and belongs to the lactate dehydrogenase family. It has long been known that many human cancers have higher LDHA levels ...
The name "dehydrogenase" is based on the idea that it facilitates the removal (de-) of hydrogen (-hydrogen-) and is an enzyme (-ase). Dehydrogenase reactions come most commonly in two forms: the transfer of a hydride and release of a proton (often with water as a second reactant), and the transfer of two hydrogens.
Recent studies have shown that a C-terminally extended isoform is produced by use of an alternative in-frame translation termination codon via a stop codon readthrough mechanism, and that this isoform is localized in the peroxisomes. Mutations in this gene are associated with lactate dehydrogenase B deficiency.
D-lactate dehydrogenase (EC 1.1.1.28, lactic acid dehydrogenase, lactic acid dehydrogenase, D-specific lactic dehydrogenase, D-(-)-lactate dehydrogenase (NAD+), D-lactic acid dehydrogenase, D-lactic dehydrogenase) is an enzyme with systematic name (R)-lactate:NAD+ oxidoreductase. [1] This enzyme catalyses the following chemical reaction
The pyruvate is turned into 2 lactate molecules, which convert NADH back to NAD+. The process then repeats, starting with another glucose molecule. Lactic acid fermentation is a metabolic process by which glucose or other six-carbon sugars (also, disaccharides of six-carbon sugars, e.g. sucrose or lactose ) are converted into cellular energy ...
The enzyme is also means to create ethanol, which is used as an antibiotic to eliminate competing organisms. [4] The enzyme is necessary to help the decarboxylation of alpha-keto acids because there is a build-up of negative charge that occurs on the carbonyl carbon atom in the transition state; therefore, the enzyme provides the suitable ...
In enzymology, a lactaldehyde dehydrogenase (EC 1.2.1.22) is an enzyme that catalyzes the chemical reaction (S)-lactaldehyde + NAD + + H 2 O (S)-lactate + NADH + 2 H +. The 3 substrates of this enzyme are (S)-lactaldehyde, NAD +, and H 2 O, whereas its 3 products are (S)-lactate, NADH, and H +.