Cited by 485Redox biology and oxidative stressNitric Oxide and Endothelin EffectsNeutrophil, Myeloperoxidase and Oxidative Mechanisms

Fundamentals on the biochemistry of peroxynitrite and protein tyrosine nitration

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Bartesaghi, Silvina, Radi, Rafael·2018·Redox Biology

Abstract

In this review we provide an analysis of the biochemistry of peroxynitrite and tyrosine nitration. Peroxynitrite is the product of the diffusion-controlled reaction between superoxide (O 2 • - ) and nitric oxide ( • NO). This process is in competition with the enzymatic dismutation of O 2 •- and the diffusion of • NO across cells and tissues and its reaction with molecular targets ( e.g. guanylate cyclase). Understanding the kinetics and compartmentalization of the O 2 •- / • NO interplay is critical to rationalize the shift of • NO from a physiological mediator to a cytotoxic intermediate. Once formed, peroxynitrite (ONOO - and ONOOH; pKa = 6,8) behaves as a strong one and two-electron oxidant towards a series of biomolecules including transition metal centers and thiols. In addition, peroxynitrite anion can secondarily evolve to secondary radicals either via its fast reaction with CO 2 or through proton-catalyzed homolysis. Thus, peroxynitrite can participate in direct (bimolecular) and indirect (through secondary radical intermediates) oxidation reactions; through these processes peroxynitrite can participate as cytotoxic effector molecule against invading pathogens and/or as an endogenous pathogenic mediator. Peroxynitrite can cause protein tyrosine nitration in vitro and in vivo . Indeed, tyrosine nitration is a hallmark of the reactions of • NO-derived oxidants in cells and tissues and serves as a biomarker of oxidative damage. Protein tyrosine nitration can mediate changes in protein structure and function that affect cell homeostasis. Tyrosine nitration in biological systems is a free radical process that can be promoted either by peroxynitrite-derived radicals or by other related • NO-dependent oxidative processes. Recently, mechanisms responsible of tyrosine nitration in hydrophobic biostructures such as membranes and lipoproteins have been assessed and involve the parallel occurrence and connection with lipid peroxidation. Experimental strategies to reveal the proximal oxidizing mechanism during tyrosine nitration in given pathophysiologically-relevant conditions include mapping and identification of the tyrosine nitration sites in specific proteins.

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Crossref · 10.1016/j.redox.2017.09.009

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  • The irreversible modification 3-nitrotyrosine is formed by nitration of tyrosine via attack of the nitrogen dioxide radical at the ortho-position of the aromatic ring.

    “The irreversible modification 3-nitrotyrosine (3-NT) is formed by nitration of tyrosine via attack of the nitrogen dioxide radical at the ortho-position of the aromatic ring [74].”

    From Protein oxidation - Formation mechanisms, detection and relevance as biomarkers in human diseases (2021) · cites this paper as [74]

    The “Nitration as a free radical process” section (page unavailable) states that nitration places a nitro group at position 3 of tyrosine’s phenolic ring and that the tyrosine radical reacts with •NO2 to yield 3-nitrotyrosine. It does not establish that the resulting 3-nitrotyrosine modification is irreversible; its discussion of reversal concerns the tyrosine-radical intermediate, not the nitrated product. (LLM, conf=0.85)

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  • Peroxynitrite can modify proteins by nitration or oxidation of amino acids, involving cysteine, tyrosine, and methionine.

    “In addition, peroxynitrite can modify proteins by nitration or oxidation of amino acids, involving cysteine, tyrosine, and methionine (Bartesaghi and Radi 2018).”

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Authors
Bartesaghi, S., & Radi, R.
Affiliations
Universidad de la República de Uruguay (UY)
Corresponding author
Bartesaghi, Silvina
Venue
Redox Biology
Publisher
Elsevier BV
Published
2018-04
Volume
14
Pages
618-625
ISSN
2213-2317 (ISSN-L)
OpenAlex
W2756324351
Cited by
485
References
98
Citations by year
2026: 38 · 2025: 66 · 2024: 63 · 2023: 48 · 2022: 61 · 2021: 71 · 2020: 63 · 2019: 52 · 2018: 22
FWCI
3.50
Type
journal article
Language
en
Open access
Locations
  • Redox Biology (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Agencia Nacional de Investigación e Innovación (FCE_2014_104233)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
Keywords
peroxynitrite, tyrosine nitration, superoxide, nitric oxide, superoxide dismutase, guanylate cyclase, secondary radicals, homolysis, oxidative damage biomarkers, lipid peroxidation, membrane proteins, lipoproteins, cytotoxicity
MeSH terms
Animals, Humans, Models, Molecular, Nitric Oxide, Proteins, Superoxides, Tyrosine, Oxidative Stress, Peroxynitrous Acid

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