ArticleThe journal of physical chemistry letters2023
Modeling the Weak pH Dependence of Proton-Coupled Electron Transfer for Tryptophan Derivatives.
Article in The journal of physical chemistry letters, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Mapping Proton-Coupled Electron Transfer With Real Space Coordinates.Angewandte Chemie (International ed. in English) · 2026Article
- Proton coupled electron transfer in myoglobin compound II auto-reduction revealed by temperature dependent rate behavior.Journal of inorganic biochemistry · 2026Article
- Proton-Coupled Electron Transfer upon Oxidation of Tyrosine in a De Novo Protein: Analysis of Proton Acceptor Candidates.Biochemistry · 2024Article
- Molecular Mechanisms in Metal Oxide Nanoparticle-Tryptophan Interactions.Inorganic chemistry · 2024Article
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3 authors.
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Abstract
The oxidation of tryptophan (Trp) is an important step in many biological processes and often occurs by sequential or concerted proton-coupled electron transfer (PCET). The apparent rate constants for the photochemical oxidation of two Trp derivatives in water have been shown to be pH-independent at low pH and to exhibit weak pH dependence at higher pH. Herein, these systems are investigated with a general, multi-channel model that includes sequential and concerted mechanisms as well as various proton donors and acceptors. This model can reproduce the kinetic data for both Trp derivatives with physically meaningful parameters and suggests that the weak pH dependence may arise from the competition between OH
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