Cited by 731Redox biology and oxidative stressSelenium in Biological SystemsGenomics, phytochemicals, and oxidative stress

Regeneration of peroxiredoxins by p53-regulated sestrins, homologs of bacterial AhpD

Budanov, Andrei V., Sablina, Anna A., Feinstein, Elena, Koonin, Eugene V., Chumakov, Peter M.·2004·Science

Abstract

Acting as a signal, hydrogen peroxide circumvents antioxidant defense by overoxidizing peroxiredoxins (Prxs), the enzymes that metabolize peroxides. We show that sestrins, a family of proteins whose expression is modulated by p53, are required for regeneration of Prxs containing Cys-SO(2)H, thus reestablishing the antioxidant firewall. Sestrins contain a predicted redox-active domain homologous to AhpD, the enzyme catalyzing the reduction of a bacterial Prx, AhpC. Purified Hi95 (sestrin 2) protein supports adenosine triphosphate-dependent reduction of overoxidized PrxI in vitro, indicating that unlike AhpD, which is a disulfide reductase, sestrins are cysteine sulfinyl reductases. As modulators of peroxide signaling and antioxidant defense, sestrins constitute potential therapeutic targets.

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Crossref · 10.1126/science.1095569

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  • Sestrins are stress-inducible proteins involved in negative regulation of the AMPK/TORC1 axis and in ROS detoxification by restoring the activity of oxidized peroxiredoxins.

    “Sestrins are a family of stress-inducible proteins involved in the negative regulation of the AMPK/TORC1 axis [227] and in ROS detoxifying by restoration of the activity of oxidized peroxiredoxins [227,228].”

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Authors
Budanov, A. V., Sablina, A. A., Feinstein, E., Koonin, E. V., & Chumakov, P. M.
Affiliations
Engelhardt Institute of Molecular Biology (RU)
Corresponding author
  • Budanov, Andrei V.
  • Sablina, Anna A.
  • Chumakov, Peter M.
Venue
Science
Published
2004-04-23
Volume
304
Issue
5670
Pages
596-600
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2147785354
Cited by
731
References
29
Citations by year
2026: 8 · 2025: 21 · 2024: 14 · 2023: 21 · 2022: 22 · 2021: 27 · 2020: 47 · 2019: 25 · 2018: 34 · 2017: 38 · 2016: 33 · 2015: 46 · 2014: 40 · 2013: 32 · 2012: 37
FWCI
14.92
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Health Sciences › Nursing › Nutrition and Dietetics › Selenium in Biological Systems
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics, phytochemicals, and oxidative stress
Keywords
peroxiredoxin, sestrins, p53, hydrogen peroxide signaling, antioxidant defense, disulfide reductase, therapeutic target
MeSH terms
Sestrins, Amino Acid Sequence, Cell Division, Cell Survival, Cells, Cultured, Heat-Shock Proteins, Humans, Hydrogen Peroxide, Molecular Sequence Data, Mutation, Nuclear Proteins, Oxidation-Reduction, Oxidoreductases, Peroxidases, Recombinant Proteins, Tumor Suppressor Protein p53, Reactive Oxygen Species, Amino Acid Substitution, RNA, Small Interfering, Cell Line, Tumor, Peroxiredoxins

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