Cited by 251Mitochondrial Function and PathologyATP Synthase and ATPases ResearchCell death mechanisms and regulation

Persistence of the mitochondrial permeability transition in the absence of subunit c of human ATP synthase

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He, Jiuya, Ford, Holly C., Carroll, Joe, Ding, Shujing, Fearnley, Ian M., Walker, John E.·2017·Proceedings of the National Academy of Sciences

Abstract

Significance: Cellular powerhouses called mitochondria generate fuel known as adenosine triphosphate, or ATP, to sustain complex life. The capacity of mitochondria to do so depends on a supply of energy from oxidation of energy-rich compounds in foodstuffs to generate a chemical potential difference for hydrogen ions, called the proton motive force (pmf), across the inner mitochondrial membrane. Disruption of this membrane dissipates the pmf, and the cells die for lack of fuel. This event happens, for example, when the concentration of calcium ions inside human mitochondria is increased. The mitochondria respond by opening a pore, water enters, and the mitochondria swell and burst. The molecular identity of the pore is disputed, and we have disproved one proposal.

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Crossref · 10.1073/pnas.1702357114

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  • Very recent findings seem to exclude possibility that F1FO ATPase constitutes pore-forming component of PTPC.

    “However, very recent findings seem to exclude the possibility that the F1FO ATPase constitutes the pore-forming component of the PTPC [402–405].”
  • Mitochondria from human cells lacking all genes coding for c subunit of F1FO ATP synthase retain ability to undergo MPT in response to Ca2+ overload.

    “Second, mitochondria from human cells lacking all the genes coding for the c subunit of the F1FO ATP synthase, i.e., ATP synthase, H+ transporting, mitochondrial Fo complex subunit C1 (subunit 9; ATP5G1), subunit C2 (subunit 9; ATP5G2), and subunit C3 (subunit 9; ATP5G3), reportedly retain the ability to undergo MPT in response to Ca2+ overload [403].”

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Research works printed but not linked: 1

  1. Gledhill JR, Montgomery MG, Leslie AGW, Walker JE (2007) How the regulatory protein, IF1, inhibits F1-ATPase from bovine mitochondria. Proc Natl Acad Sci USA 104(40):15671-15676.

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Authors
He, J., Ford, H. C., Carroll, J., Ding, S., Fearnley, I. M., & Walker, J. E.
Affiliations
MRC Mitochondrial Biology Unit (GB)
Corresponding author
Walker, John E.
Venue
Proceedings of the National Academy of Sciences
Published
2017-03-13
Volume
114
Issue
13
Pages
3409-3414
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2596115537
Cited by
251
References
68
Citations by year
2026: 10 · 2025: 11 · 2024: 13 · 2023: 22 · 2022: 15 · 2021: 33 · 2020: 47 · 2019: 36 · 2018: 41 · 2017: 23
FWCI
16.41
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Apollo (University of Cambridge) (submittedVersion)
  • Apollo
Funders
Medical Research Council (MC_U1065663150, MR/M009858/1)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › ATP Synthase and ATPases Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
Keywords
mitochondrial permeability transition, mitochondrial membrane permeability, proton motive force, mitochondrial swelling, mitochondrial calcium, ATP production, mitochondrial membrane potential
MeSH terms
Adenosine Triphosphate, Biological Transport, Humans, Isoenzymes, Mitochondria, Permeability, Mitochondrial Proton-Translocating ATPases

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