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ELECTRON TRANSFER IN PROTEINS
Abstract
Electron-transfer (ET) reactions are key steps in a diverse array of biological transformations ranging from photosynthesis to aerobic respiration. A powerful theoretical formalism has been developed that describes ET rates in terms of two parameters: the nuclear reorganization energy (γ) and the electroniccoupling strength (H AB). Studies of ET reactions in ruthenium-modified proteins have probed γ and H AB in several metalloproteins (cytochrome c, myoglobin, azurin). This work has shown that protein reorganization energies are sensitive to the medium surrounding the redox sites and that an aqueous environment, in particular, leads to large reorganization energies. Analyses of electronic-coupling strengths suggest that the efficiency of long-range ET depends on the protein secondary structure: β sheets appear to mediate coupling more efficiently than α-helical structures, and hydrogen bonds play a critical role in both.
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Cites
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Goodwin, S., McPherson, J. D., & McCombie, W. R. (2016) · Nature Reviews Genetics · doi:10.1038/nrg.2016.49 · Cited by 4,352
Cited by
Heme Enzyme Structure and Function
Poulos, T. L. (2014) · Chemical Reviews · doi:10.1021/cr400415k · Cited by 1,443
Gray, H. B., & Winkler, J. R. (2005) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0408029102 · Cited by 855
Self-citationStubbe, J., Nocera, D. G., Yee, C. S., & Chang, M. C. Y. (2003) · Chemical Reviews · doi:10.1021/cr020421u · Cited by 823
Interfacing nature’s catalytic machinery with synthetic materials for semi-artificial photosynthesis
Kornienko, N., Zhang, J. Z., Sakimoto, K. K., Yang, P., & Reisner, E. (2018) · Nature Nanotechnology · doi:10.1038/s41565-018-0251-7 · Cited by 533
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
Metadata
- Authors
- Gray, H. B., & Winkler, J. R.
- Venue
- Annual Review of Biochemistry
- Publisher
- Annual Reviews
- Published
- 1996-06
- Volume
- 65
- Issue
- 1
- Pages
- 537-561
- ISSN
- 0066-4154 (ISSN-L)
- 1545-4509
- OpenAlex
- W2124540342
- Cited by
- 1,039
- References
- 1
- FWCI
- 25.58
- Type
- journal article
- Language
- en
- Open access
- closed
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- Gray, H. B., & Winkler, J. R. (1996). ELECTRON TRANSFER IN PROTEINS. Annual Review of Biochemistry. https://doi.org/10.1146/annurev.bi.65.070196.002541
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
