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. 2019 Jul 12;11(7):1581. doi: 10.3390/nu11071581

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Scheme of the enzymatic (A) and non-enzymatic (B) production of H₂S in mammalian cells. The figure B displays the non-enzymatic production of H₂S starting from DADS that reacts with GSH through a nucleophilic substitution at the α-carbon. Abbreviations: CBS = cystathionine β-synthase; CSE = cystathionine γ-lyase; 3-MP = 3-mercaptopyruvate; GSH = reduced glutathione; GSSG = oxidized glutathione; GSSH = glutathione persulfide; = allyl-thiol; = S-allyl-glutathione; = allyl-glutathione disulfide.

Inline graphic — Scheme of the enzymatic (A) and non-enzymatic (B) production of H₂S in mammalian cells. The figure B displays the non-enzymatic production of H₂S starting from DADS that reacts with GSH through a nucleophilic substitution at the α-carbon. Abbreviations: CBS = cystathionine β-synthase; CSE = cystathionine γ-lyase; 3-MP = 3-mercaptopyruvate; GSH = reduced glutathione; GSSG = oxidized glutathione; GSSH = glutathione persulfide; = allyl-thiol; = S-allyl-glutathione; = allyl-glutathione disulfide.