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The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.

Dimers of mitochondrial ATP synthase form the permeability transition pore

Open access
Giorgio, Valentina, von Stockum, Sophia, Antoniel, Manuela, Fabbro, Astrid, Fogolari, Federico, Forte, Michael, Glick, Gary D., Petronilli, Valeria, Zoratti, Mario, Szabó, Ildikó, Lippe, Giovanna, Bernardi, Paolo·2013·Proceedings of the National Academy of Sciences

Abstract

Here we define the molecular nature of the mitochondrial permeability transition pore (PTP), a key effector of cell death. The PTP is regulated by matrix cyclophilin D (CyPD), which also binds the lateral stalk of the F O F 1 ATP synthase. We show that CyPD binds the oligomycin sensitivity-conferring protein subunit of the enzyme at the same site as the ATP synthase inhibitor benzodiazepine 423 (Bz-423), that Bz-423 sensitizes the PTP to Ca 2+ like CyPD itself, and that decreasing oligomycin sensitivity-conferring protein expression by RNAi increases the sensitivity of the PTP to Ca 2+ . Purified dimers of the ATP synthase, which did not contain voltage-dependent anion channel or adenine nucleotide translocator, were reconstituted into lipid bilayers. In the presence of Ca 2+ , addition of Bz-423 triggered opening of a channel with currents that were typical of the mitochondrial megachannel, which is the PTP electrophysiological equivalent. Channel openings were inhibited by the ATP synthase inhibitor AMP-PNP (γ-imino ATP, a nonhydrolyzable ATP analog) and Mg 2+ /ADP. These results indicate that the PTP forms from dimers of the ATP synthase.

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Metadata

Authors
Giorgio, V., von Stockum, S., Antoniel, M., Fabbro, A., Fogolari, F., Forte, M., Glick, G. D., Petronilli, V., Zoratti, M., Szabó, I., Lippe, G., & Bernardi, P.
Venue
Proceedings of the National Academy of Sciences
Published
2013-03-25
Volume
110
Issue
15
Pages
5887-5892
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2116444561
Cited by
922
References
6
FWCI
47.34
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Dimers of mitochondrial ATP synthase form the permeability transition pore. https://app.cochat.ai/papers/10.1073/pnas.1217823110
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Giorgio, V., von Stockum, S., Antoniel, M., Fabbro, A., Fogolari, F., Forte, M., Glick, G. D., Petronilli, V., Zoratti, M., Szabó, I., Lippe, G., & Bernardi, P. (2013). Dimers of mitochondrial ATP synthase form the permeability transition pore. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1217823110

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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