Cited by 129Redox biology and oxidative stressMitochondrial Function and PathologyEndoplasmic Reticulum Stress and Disease

Regulation of the protein disulfide proteome by mitochondria in mammalian cells

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Yang, Yi, Song, Yanli, Loscalzo, Joseph·2007·Proceedings of the National Academy of Sciences

Abstract

The majority of protein disulfides in cells is considered an important inert structural, rather than a dynamic regulatory, determinant of protein function. Here, we show that some disulfides in proteins also are regulated by cell redox status with functional consequences. We find that reactive oxygen species (ROS) produced by mitochondria are actively used by cells to facilitate cell-surface protein disulfide formation, as well as folding and transport, in mammalian cells. Inhibition of mitochondrial ROS production suppresses protein disulfide formation and induces reductive stress, leading to dysfunction and retention (possibly in the Golgi, in part) of a group of cell-surface disulfide-containing proteins. Sparsely cultured cells produce less ROS than confluent cells do, which leads to decreased disulfide formation and decreased activity of a subgroup of disulfide-containing cell-surface receptors. These data support the concept of two subproteomes comprising the disulfide proteome, a structural group and a redox-sensitive regulatory group, with the latter having direct functional consequences for the cell.

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  1. [14]Lodish HF, Kong N. J Biol Chem. 1993;268:20598–20605. [PubMed] [Google Scholar]
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Authors
Yang, Y., Song, Y., & Loscalzo, J.
Affiliations
Brigham and Women's Hospital (US)
Corresponding author
Loscalzo, Joseph
Venue
Proceedings of the National Academy of Sciences
Published
2007-06-26
Volume
104
Issue
26
Pages
10813-10817
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1988862712
Cited by
129
References
27
Citations by year
2026: 5 · 2025: 3 · 2024: 2 · 2023: 5 · 2022: 5 · 2021: 4 · 2020: 7 · 2019: 6 · 2018: 8 · 2017: 8 · 2016: 4 · 2015: 7 · 2014: 13 · 2013: 10 · 2012: 8
FWCI
2.92
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Ministry of Education of the People's Republic of China
  • National Institutes of Health (n01hv28178-12-0-0, HL55993, HL 58976, HL 61795, HV28178)
  • National Heart, Lung, and Blood Institute (HL61795, HV-28178, HL58976, R01HL058976, P01HL081587, P01HL81587, N01-HV-028178, R01HL061795, P50HL055993, R37HL061795)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Endoplasmic Reticulum Stress and Disease
Keywords
mitochondria, reactive oxygen species, redox regulation, cell surface proteins, protein folding, protein trafficking, reductive stress, Golgi retention, cell surface receptors, cell confluence, disulfide bond formation
MeSH terms
Animals, Cells, Disulfides, Mammals, Membrane Proteins, Mitochondria, Oxidation-Reduction, Reactive Oxygen Species, Oxidative Stress, Proteome

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