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Chemical Compound Review

AG-G-18174     2-(3,7-dimethylocta-2,6- dienyl)-5,6...

Synonyms: AG-K-69434, SureCN1506676, CTK0H8676, AC1L3O4T, 1339-63-5, ...
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High impact information on Coenzyme Q

  • Although TQ is present in substoichiometric amounts with respect to UQ in mitochondria and in our experiments with isolated bc(1) complex, we observed a decrease of the total electron transfer rate via the bc(1) complex with increasing amounts of TQ [1].
  • One of the most complex redox reactions of the respiratory chain is the interaction of reduced UQ (UQH(2)) with the cytochrome bc(1) complex (ubiquinol:cytochrome c reductase, EC [1].
  • These differences are also reflected by the extremely low turnover numbers of the bc(1) activity for TQ/TQH(2) compared to UQ/UQH(2) suggesting that TQ/TQH(2) acts as a weak competitive inhibitor for binding sites of UQ/UQH(2) [1].


  1. Redox-interaction of alpha-tocopheryl quinone with isolated mitochondrial cytochrome bc1 complex. Gille, L., Gregor, W., Staniek, K., Nohl, H. Biochem. Pharmacol. (2004) [Pubmed]
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