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Author

Arthur Srayeddin

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Open access Sep 2026

Reversible Cystine Disulfide Scaffolding Enables Carbonyl Sulfide-Mediated Intramolecular Peptide Bond Formation via Cyclocystine: Implications for Prebiotic Chemistry.

Treatment of cystine (the disulfide-linked dimer of cysteine) with carbonyl sulfide (COS) results in the formation of cyclocystine, which upon reduction yields the Cys-Cys dipeptide. These findings demonstrate a role for the cystine disulfide bond as a molecular scaffold that favors intramolecular peptide bond formatio...

A. Dass, Arthur Srayeddin, A. Rullo et al. · 0 citations

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