4.6 Article

Reaction of Hydrogen Sulfide with Disulfide and Sulfenic Acid to Form the Strongly Nucleophilic Persulfide

Journal

JOURNAL OF BIOLOGICAL CHEMISTRY
Volume 290, Issue 45, Pages 26866-26880

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ELSEVIER
DOI: 10.1074/jbc.M115.672816

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Funding

  1. Comision Sectorial de Investigacion Cientifica (Universidad de la Republica)
  2. L'Oreal-UNESCO, Uruguay
  3. Friedrich-Alexander University of Erlangen-Nuremberg (MRIC)
  4. Agencia Nacional de Investigacion e Innovacion
  5. PEDECIBA, Uruguay

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Background: Hydrogen sulfide (H2S) modulates physiological processes in mammals. Results: The reactivity of H2S toward disulfides (RSSR) and albumin sulfenic acid (RSOH) to form persulfides (RSSH) was assessed. Conclusion: H2S is less reactive than thiols. Persulfides have enhanced nucleophilicity. Significance: This kinetic study helps rationalize the contribution of the reactions with oxidized thiol derivatives to H2S biology.

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