Glutamate dehydrogenase of the unicellular green alga Scenedesmus acutus |
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Authors: | Valery R. Shatilov Horst Sund |
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Affiliation: | 1. Fakult?t für Biologie der Universit?t, Postfach 5560, D-7750, Konstanz, Germany
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Abstract: | The coenzyme-non-specific glutamate dehydrogenase (EC 1.4.1.3) from Scenedesmus acutus in inhibited by p-hydroxymercuribenzoate only in the deamination reaction. From this result and from its stability in the presence of urea it is concluded that this enzyme exhibits and equilibrium between three conformations: aminating and deaminating conformations induced by NADH-2-oxoglutarate and NAD+-glutamate, respectively, and the “native” conformation in the absence of substrates. |
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