Photochromic coenzyme Q derivatives: switching redox potentials with light
Nadja A Simeth1, Andrea C Kneuttinger2, Reinhard Sterner2
1University of Regensburg , Faculty of Chemistry and Pharmacy , Institute of Organic Chemistry , Universitätsstraße 31 , 93053 Regensburg , Germany . Email: burkhard.koenig@ur.de ; Tel: +49-941-943-4575.
Chemical Science
|October 10, 2017
Summary
Researchers developed a photochromic coenzyme Q derivative that changes redox potential with light. This allows light-controlled redox reactions in cellular systems, impacting mitochondrial respiration.
Area of Science:
- Biochemistry
- Photochemistry
- Cellular Biology
Background:
- Coenzyme Q is a vital redox cofactor in cellular processes.
- Coenzyme Q resides in various cellular compartments.
- Controlling redox reactions in situ is challenging.
Purpose of the Study:
- To create a photochromic derivative of Coenzyme Q.
- To investigate light-induced reversible changes in redox potential.
- To demonstrate light-controlled redox reactions in biological systems.
Main Methods:
- Synthesized a novel photochromic Coenzyme Q derivative.
- Utilized light irradiation to induce photoisomerization and alter redox potential.
- Examined intermolecular redox reactions with dihydropyridine.
- Assessed effects on mitochondrial respiratory chain.
Main Results:
- The synthesized derivative exhibits light-triggered electronic rearrangement.
- Redox potential of the derivative is reversibly modulated by light.
- Intermolecular redox reactions with dihydropyridine were controlled by light.
- Observed impact on mitochondrial respiration chain.
Conclusions:
- Photochromic Coenzyme Q derivatives offer light-tunable redox properties.
- Light-initiated redox reactions are feasible within biological systems.
- This approach provides novel control over cellular redox processes.
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