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Proton-Coupled Electron Transfer in Biology: Results from Synergistic Studies in Natural and Model Systems
Open accessAbstract
Proton-coupled electron transfer (PCET) underpins energy conversion in biology. PCET may occur with the unidirectional or bidirectional transfer of a proton and electron and may proceed synchronously or asynchronously. To illustrate the role of PCET in biology, this review presents complementary biological and model systems that explore PCET in electron transfer (ET) through hydrogen bonds [azurin as compared to donor-acceptor (D-A) hydrogen-bonded networks], the activation of C–H bonds [alcohol dehydrogenase and soybean lipoxygenase (SLO) as compared to Fe(III) metal complexes], and the generation and transport of amino acid radicals [photosystem II (PSII) and ribonucleotide reductase (RNR) as compared to tyrosine-modified photoactive Re(I) and Ru(II) complexes]. In providing these comparisons, the fundamental principles of PCET in biology are illustrated in a tangible way.
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Proton-coupled electron transfer
Huynh, M. H. V., & Meyer, T. J. (2007) · Chemical Reviews · doi:10.1021/cr0500030 · Cited by 1,659
Stubbe, J., Nocera, D. G., Yee, C. S., & Chang, M. C. Y. (2003) · Chemical Reviews · doi:10.1021/cr020421u · Cited by 823
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Xie, J., & Schultz, P. G. (2006) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm2005 · Cited by 408
Reece, S. Y., Hodgkiss, J. M., Stubbe, J., & Nocera, D. G. (2006) · Philosophical Transactions of the Royal Society B: Biological Sciences · doi:10.1098/rstb.2006.1874 · Cited by 294 · cited 1×
“Enzymes often rely on the coupling of electrons and protons to affect primary metabolic steps involving charge transport and catalysis (1).”
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Glickman, M. H., Wiseman, J. S., & Klinman, J. P. (1994) · Journal of the American Chemical Society · doi:10.1021/ja00081a060 · Cited by 161
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Metadata
- Authors
- Reece, S. Y., & Nocera, D. G.
- Venue
- Annual Review of Biochemistry
- Publisher
- Annual Reviews
- Published
- 2009-06-01
- Volume
- 78
- Issue
- 1
- Pages
- 673-699
- ISSN
- 0066-4154 (ISSN-L)
- 1545-4509
- OpenAlex
- W2124129640
- Cited by
- 483
- References
- 5
- FWCI
- 0.38
- Type
- journal article
- Language
- en
- Open access
- green
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