A perspective on Q-cycles |
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| Authors: | Peter R. Rich |
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| Affiliation: | (1) Department of Biochemistry, University of Cambridge, Tennis Court Road, CB2 1QW Cambridge, United Kingdom;(2) Present address: The Glynn Research Foundation Ltd., PL30 4AU Bodmin, Cornwall, U.K. |
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| Abstract: | An examination is made of both the Q-cycle andb-cycle formulations of electron transfer and energy conservation in the cytochromebc1 complex. A working hypothesis for the complex is presented, based upon the Q-cycle notion of vectorial reaction sites, but incorporating theb-cycle feature of semiquinone movement between these sites. |
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| Keywords: | Q-cycle b-cycle bc complexes bf complexes semiquinone quinol oxidation quinone reduction |
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