Crossref journal-article
American Association for the Advancement of Science (AAAS)
Science (221)
Abstract

The structure of Escherichia coli succinate dehydrogenase (SQR), analogous to the mitochondrial respiratory complex II, has been determined, revealing the electron transport pathway from the electron donor, succinate, to the terminal electron acceptor, ubiquinone. It was found that the SQR redox centers are arranged in a manner that aids the prevention of reactive oxygen species (ROS) formation at the flavin adenine dinucleotide. This is likely to be the main reason SQR is expressed during aerobic respiration rather than the related enzyme fumarate reductase, which produces high levels of ROS. Furthermore, symptoms of genetic disorders associated with mitochondrial SQR mutations may be a result of ROS formation resulting from impaired electron transport in the enzyme.

Bibliography

Yankovskaya, V., Horsefield, R., Törnroth, S., Luna-Chavez, C., Miyoshi, H., Léger, C., Byrne, B., Cecchini, G., & Iwata, S. (2003). Architecture of Succinate Dehydrogenase and Reactive Oxygen Species Generation. Science, 299(5607), 700–704.

Authors 9
  1. Victoria Yankovskaya (first)
  2. Rob Horsefield (additional)
  3. Susanna Törnroth (additional)
  4. César Luna-Chavez (additional)
  5. Hideto Miyoshi (additional)
  6. Christophe Léger (additional)
  7. Bernadette Byrne (additional)
  8. Gary Cecchini (additional)
  9. So Iwata (additional)
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  36. Supported by Biotechnology and Biological Sciences Research Council of the UK Structural Biology Network of Sweden Syngenta and the Department of Veterans Affairs and NIH grant GM61606. We thank E. Mitchell and A. Thompson at ESRF Grenoble and T. Tomizakiand C. Schulze-Briese at SLS for technical assistance. We also thank J. Abramson and T. Iverson for critically reading the manuscript. The coordinates for the native SQR and the DNP-17 complex are deposited with PDB (entries 1NEK and 1NEN respectively).
Dates
Type When
Created 22 years, 6 months ago (Jan. 30, 2003, 4:37 p.m.)
Deposited 1 year, 7 months ago (Jan. 9, 2024, 11:43 p.m.)
Indexed 2 hours, 10 minutes ago (Aug. 27, 2025, 12:30 p.m.)
Issued 22 years, 6 months ago (Jan. 31, 2003)
Published 22 years, 6 months ago (Jan. 31, 2003)
Published Print 22 years, 6 months ago (Jan. 31, 2003)
Funders 0

None

@article{Yankovskaya_2003, title={Architecture of Succinate Dehydrogenase and Reactive Oxygen Species Generation}, volume={299}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1079605}, DOI={10.1126/science.1079605}, number={5607}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Yankovskaya, Victoria and Horsefield, Rob and Törnroth, Susanna and Luna-Chavez, César and Miyoshi, Hideto and Léger, Christophe and Byrne, Bernadette and Cecchini, Gary and Iwata, So}, year={2003}, month=jan, pages={700–704} }