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Darrouzet E, Dupuis A: Genetic evidence for the existence of two quinone related inhibitor binding sites in NADH-CoQ reductase. Ann Neurol. 2004 Nov;56(5):631-41. Using the NADH-CoQ reductase of Rhodobacter capsulatus as a model for the mitochondrial Complex I, we have for the first time isolated bacterial mutants resistant to piericidin-A, a classical inhibitor of the mitochondrial enzyme. Their sensitivity to other inhibitors directed towards the quinone binding domain of complex I gives direct genetic evidence for the existence of two inhibitor binding sites. |
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