1932

Abstract

The cytochrome complexes represent a phylogenetically diverse group of complexes of electron-transferring membrane proteins, most familiarly represented by the mitochondrial and bacterial complexes and the chloroplast and cyanobacterial complex. All these complexes couple electron transfer to proton translocation across a closed lipid bilayer membrane, conserving the free energy released by the oxidation-reduction process in the form of an electrochemical proton gradient across the membrane. Recent exciting developments include the application of site-directed mutagenesis to define the role of conserved residues, and the emergence over the past five years of X-ray structures for several mitochondrial complexes, and for two important domains of the complex.

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/content/journals/10.1146/annurev.biochem.69.1.1005
2000-07-01
2024-04-20
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  • Article Type: Review Article
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