isocitrate dehydrogenase

enzyme

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In metabolism: Formation of coenzyme A, carbon dioxide, and reducing equivalent
…the enzyme controlling this reaction, isocitrate dehydrogenase, differs in specificity for the coenzymes; various forms occur not only in different organisms but even within the same cell. In [40] NAD(P)⁺ indicates that either NAD⁺ or NADP⁺ can act as a hydrogen acceptor.
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In metabolism: Energy state of the cell
Some forms of isocitrate dehydrogenase are maximally active only in the presence of ADP or AMP and are inhibited by ATP. This is an example of regulation by covalent modification of an enzyme since the action of ATP here is to phosphorylate, and consequently to inactivate, the isocitrate…
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