Cited by 75Chemical Reaction MechanismsNitric Oxide and Endothelin EffectsRedox biology and oxidative stress

Transnitrosation between nitrosothiols and thiols

Barnett, D. Jonathan, McAninly, John, Williams, D. Lyn H.·1994·Journal of the Chemical Society Perkin Transactions 2

Abstract

Transfer of the nitroso group from nitrosothiols to thiols occurs very readily in aqueous solution particularly at pH > ≈8. The results are consistent with attack by the thiolate anion at the nitroso nitrogen atom of the nitrosothiol. Results have been obtained for the reaction of S-nitroso-N-acetylpenicillamine (SNAP) with thioglycolic acid and also for the reaction of S-nitrosocysteine (SNCys) with thiomalic acid. Both reactions showed the same kinetic characteristics. The results are discussed in terms of transnitrosation reactions of nitroso compounds generally, and also in the case of nitrosothiols, in terms of possible in vivo transnitrosation and subsequent decomposition of a possibly more unstable nitrosothiol to yield nitric oxide; this may have implications for the mechanism of action of nitric oxide in a range of physiological processes.

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Crossref · 10.1039/p29940001131

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9 of 9 references verified0 citation errors · 0 not checkable

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  • A central signaling reaction of S-nitrosothiols is their ability to act as nitrosating agents through transnitrosation.

    “Perhaps the central reaction in terms of signaling is the ability to serve as a nitrosating agent through transnitrosation (Eq. 16) [174].”

    From Signaling and stress: The redox landscape in NOS2 biology (2015) · cites this paper as [174]

  • Nitrosation favors thiols with a lower pKa.

    “Their data showed that the nitrosation favored thiols with a lower pKa.”

    From On the chemical biology of the nitrite/sulfide interaction (2015) · cites this paper as [96]

  • The reaction of transnitrosation between nitrosothiols and thiols is very fast, requiring stopped-flow techniques for kinetics.

    “They found the reaction to be very fast, requiring stopped-flow techniques for investigating the kinetics.”

    From On the chemical biology of the nitrite/sulfide interaction (2015) · cites this paper as [96]

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Authors
Barnett, D. J., McAninly, J., & Williams, D. L. H.
Venue
Journal of the Chemical Society Perkin Transactions 2
Published
1994
Issue
6
Pages
1131
ISSN
  • 0300-9580 (ISSN-L)
  • 1364-5471
OpenAlex
W2029842625
Cited by
75
References
9
Citations by year
2026: 1 · 2022: 1 · 2020: 1 · 2016: 4 · 2015: 1 · 2014: 3 · 2013: 1
FWCI
4.01
Type
journal article
Language
en
Open access
closed
Locations
Journal of the Chemical Society Perkin Transactions 2 (publishedVersion)
Funders
Wellcome Trust
Topics
  • Physical Sciences › Chemistry › Organic Chemistry › Chemical Reaction Mechanisms
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
transnitrosation, S-nitrosothiols, thiols, S-nitroso-N-acetylpenicillamine, S-nitrosocysteine, thioglycolic acid, thiomalic acid, reaction kinetics, nitric oxide

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