Cited by 458Redox biology and oxidative stressGlutathione Transferases and PolymorphismsNeutrophil, Myeloperoxidase and Oxidative Mechanisms

Inactivation of Human Peroxiredoxin I during Catalysis as the Result of the Oxidation of the Catalytic Site Cysteine to Cysteine-sulfinic Acid

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Yang, Kap-Seok, Kang, Sang Won, Woo, Hyun Ae, Hwang, Sung Chul, Chae, Ho Zoon, Kim, Kanghwa, Rhee, Sue Goo·2002·Journal of Biological Chemistry

Abstract

By following peroxiredoxin I (Prx I)-dependent NADPH oxidation spectrophotometrically, we observed that Prx I activity decreased gradually with time. The decay in activity was coincident with the conversion of Prx I to a more acidic species as assessed by two-dimensional gel electrophoresis. Mass spectral analysis and studies with Cys mutants determined that this shift in pI was due to selective oxidation of the catalytic site Cys(51)-SH to Cys(51)-SO(2)H. Thus, Cys(51)-SOH generated as an intermediate during catalysis appeared to undergo occasional further oxidation to Cys(51)-SO(2)H, which cannot be reversed by thioredoxin. The presence of H(2)O(2) alone was not sufficient to cause oxidation of Cys(51) to Cys(51)-SO(2)H. Rather, the presence of complete catalytic components (H(2)O(2), thioredoxin, thioredoxin reductase, and NADPH) was necessary, indicating that such hyperoxidation occurs only when Prx I is engaged in the catalytic cycle. Likewise, hyperoxidation of Cys(172)/Ser(172) mutant Prx I required not only H(2)O(2), but also a catalysis-supporting thiol (dithiothreitol). Kinetic analysis of Prx I inactivation in the presence of a low steady-state level (<1 microm) of H(2)O(2) indicated that Prx I was hyperoxidized at a rate of 0.072% per turnover at 30 degrees C. Hyperoxidation of Prx I was also detected in HeLa cells treated with H(2)O(2).

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Crossref · 10.1074/jbc.m206626200

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  • Many mammalian 2-Cys Prxs are susceptible to overoxidation, in which the -S-OH of the oxidized Cys-active site is further oxidized to −SO2H (sulfinic acid).

    “however, many of the mammalian 2-Cys forms are susceptible to overoxidation, a process in which the –S-OH of the oxidized Cys-active site is further oxidized to −SO2H (sulfinic acid) (338, 462).”

    From Redox regulation of mitochondrial function (2012) · cites this paper as [462]

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Authors
Yang, K.-S., Kang, S. W., Woo, H. A., Hwang, S. C., Chae, H. Z., Kim, K., & Rhee, S. G.
Affiliations
National Institutes of Health (US)
Corresponding author
Rhee, Sue Goo
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2002-10
Volume
277
Issue
41
Pages
38029-38036
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2098048169
Cited by
458
References
45
Citations by year
2026: 6 · 2025: 10 · 2024: 14 · 2023: 13 · 2022: 8 · 2021: 11 · 2020: 10 · 2019: 15 · 2018: 20 · 2017: 19 · 2016: 20 · 2015: 25 · 2014: 20 · 2013: 25 · 2012: 27
FWCI
6.61
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • AJOU Open Repository (Ajou University) (submittedVersion, cc-by)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Glutathione Transferases and Polymorphisms
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
Keywords
peroxiredoxin 1, hyperoxidation, cysteine sulfinic acid, enzyme inactivation, NADPH oxidation, thioredoxin, thioredoxin reductase, hydrogen peroxide, dithiothreitol, HeLa cells
MeSH terms
Amino Acid Sequence, Antioxidants, Catalysis, Cysteine, HeLa Cells, Humans, Hydrogen Peroxide, Hydrogen-Ion Concentration, Molecular Sequence Data, Mutation, NADP, Oxidation-Reduction, Peptides, Peroxidases, Recombinant Proteins, Thioredoxins, Thioredoxin-Disulfide Reductase, Oxidants, Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization, Catalytic Domain, Spectrometry, Mass, Electrospray Ionization, Peroxiredoxins

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