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Regulation of electron transfer by the quinone pool

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Abstract

Strong evidence for a random collisional mechanism for ubiquinone-mediated electron transfer is provided by the characteristic kinetic properties of respiratory chains originally explored by Kröger, A., and Klingenberg, M. (1973),Eur. J. Biochem. 34, 313–323. A kinetic model which leads to this so-called “simple Q-pool behavior” has been described and we use this in reviewing evidence that electron transfer is diffusion-controlled as well as diffusion-coupled. We also consider mechanisms by which the kinetics of electron transfer might deviate from simple Q-pool behavior and how these might be implicated in the regulation of electron transport.

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Authors and Affiliations

  1. Department of Biochemistry, University of Southampton, SO9 3TU, Southampton, UK

    C. I. Ragan & J. S. Reed

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  1. C. I. Ragan
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  2. J. S. Reed
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Ragan, C.I., Reed, J.S. Regulation of electron transfer by the quinone pool. J Bioenerg Biomembr 18, 403–418 (1986). https://doi.org/10.1007/BF00743012

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  • DOI: https://doi.org/10.1007/BF00743012

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