Citric Acid Cycle

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The [[Citric Acid Cycle]] (tricarboxylic acid cycle) is a series of enzyme catalyzed reactions which are critical in cellular respiration. Under oxidative conditions, pyruvate continues to be metabolized through the tricarboxylic acid cycle. In this cycle, Acetyl-CoA, a byproduct of [[glycolysis]], along with various cofactors, are broken down into carbon dioxide, water, and energy in the form of GTP and NADH.
The [[Citric Acid Cycle]] (tricarboxylic acid cycle) is a series of enzyme catalyzed reactions which are critical in cellular respiration. Under oxidative conditions, pyruvate continues to be metabolized through the tricarboxylic acid cycle. In this cycle, Acetyl-CoA, a byproduct of [[glycolysis]], along with various cofactors, are broken down into carbon dioxide, water, and energy in the form of GTP and NADH.
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'''Pyruvate decarboxylation or pyruvate oxidation''', also known as the link reaction (or oxidative decarboxylation of pyruvate), is the conversion of <scene name='39/392339/Cv/16'>pyruvate</scene> into <scene name='43/430893/Cv/1'>Acetyl-CoA</scene> by the enzyme complex pyruvate dehydrogenase complex (see [[Pyruvate dehydrogenase]]).
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'''Pyruvate decarboxylation or pyruvate oxidation''', also known as the link reaction (or oxidative decarboxylation of pyruvate), is the conversion of <scene name='39/392339/Cv/16'>pyruvate</scene> into <scene name='43/430893/Cv/2'>Acetyl-CoA</scene> by the enzyme complex pyruvate dehydrogenase complex (see [[Pyruvate dehydrogenase]]).
The multienzyme complex together catalyzes five distinct reactions in the conversion of pyruvate to Acetyl-CoA. The overall result is described by the following reaction:
The multienzyme complex together catalyzes five distinct reactions in the conversion of pyruvate to Acetyl-CoA. The overall result is described by the following reaction:

Revision as of 16:11, 8 November 2022

Open conformation of citrate synthase dimer complex with citrate (PDB code 1cts) and closed conformation of citrate synthase dimer complex with citrate and CoA (PDB code 2cts)

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Alexander Berchansky, David Canner, Ann Taylor, Wayne Decatur, Jaime Prilusky

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