ArticleScientific reports2019
Optimal efficiency of the Q-cycle mechanism around physiological temperatures from an open quantum systems approach.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Article
- High-resolutionbioRxiv : the preprint server for biology · 2024Article
- Solar energy conversion by photosystem II: principles and structures.Photosynthesis research · 2023Review
- Molecular mechanisms underlying the renal protective effects of coenzyme Q10 in acute kidney injury.Cellular & molecular biology letters · 2022Review
- Coenzyme QInternational journal of molecular sciences · 2020Review
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Authors and funding
4 authors.
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Abstract
The Q-cycle mechanism entering the electron and proton transport chain in oxygenic photosynthesis is an example of how biological processes can be efficiently investigated with elementary microscopic models. Here we address the problem of energy transport across the cellular membrane from an open quantum system theoretical perspective. We model the cytochrome [Formula: see text] protein complex under cyclic electron flow conditions starting from a simplified kinetic model, which is hereby revisited in terms of a Markovian quantum master equation formulation and spin-boson Hamiltonian treatment. We apply this model to theoretically demonstrate an optimal thermodynamic efficiency of the Q-cycle around ambient and physiologically relevant temperature conditions. Furthermore, we determine the quantum yield of this complex biochemical process after setting the electrochemical potentials to values well established in the literature. The present work suggests that the theory of quantum open systems can successfully push forward our theoretical understanding of complex biological systems working close to the quantum/classical boundary.
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