ISSN:
1573-6881
Keywords:
Ubiquinone
;
quinone
;
electron transfer
;
electron transport
;
membrane
;
lateral diffusion
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Chemistry and Pharmacology
,
Physics
Notes:
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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00743012
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