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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 ...
Lactate is then transported from the peripheral tissues to the liver by means of the Cori Cycle where it is reformed into pyruvate through the reverse reaction using lactate dehydrogenase. By this logic, lactate was traditionally considered a toxic metabolic byproduct that could give rise to fatigue and muscle pain during times of anaerobic ...
When sufficient oxygen is not present in the muscle cells for further oxidation of pyruvate and NADH produced in glycolysis, NAD+ is regenerated from NADH by reduction of pyruvate to lactate. [4] Lactate is converted to pyruvate by the enzyme lactate dehydrogenase. [3] The standard free energy change of the reaction is -25.1 kJ/mol. [6]
Pyruvate dehydrogenase complex. Pyruvate dehydrogenase complex (PDC) is a complex of three enzymes that converts pyruvate into acetyl-CoA by a process called pyruvate decarboxylation. [1] Acetyl-CoA may then be used in the citric acid cycle to carry out cellular respiration, and this complex links the glycolysis metabolic pathway to the citric ...
Lactic acidosis refers to the process leading to the production of lactate by anaerobic metabolism. It increases hydrogen ion concentration tending to the state of acidemia or low pH. The result can be detected with high levels of lactate and low levels of bicarbonate. This is usually considered the result of illness but also results from ...
This enzyme is involved in the initial stages of the synthesis of bile acids from cholesterol and a member of the short-chain dehydrogenase/reductase superfamily. This enzyme is a membrane-associated endoplasmic reticulum protein which is active against 7-alpha hydrosylated sterol substrates.
In enzymology, an L-lactate dehydrogenase (cytochrome) (EC number 1.1.2.3) is an enzyme that catalyzes the chemical reaction (S)-lactate + 2 ferricytochrome c pyruvate + 2 ferrocytochrome c. Thus, the two substrates of this enzyme are (S)-lactate and ferricytochrome c, whereas its two products are pyruvate and ferrocytochrome c.