How the Protein Environment Can Tune the Energy, the Coupling, and the Ultrafast Dynamics of Interacting Chlorophylls: The Example of the Water-Soluble Chlorophyll Protein
| Autor: | Elena Meneghin, Alessandro Agostini, Elisa Fresch, Harald Paulsen, Donatella Carbonera, Elisabetta Collini |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Chlorophyll
Models Molecular Letter Chemistry Chlorophyll A Light-Harvesting Protein Complexes Temperature Water 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Coupling (physics) chemistry.chemical_compound Protein environment Water soluble Chemical physics Thermodynamics Molecule General Materials Science Physical and Theoretical Chemistry 0210 nano-technology Ultrashort pulse |
| Zdroj: | The Journal of Physical Chemistry Letters |
| Popis: | The interplay between active molecules and the protein environment in light-harvesting complexes tunes the photophysics and the dynamical properties of pigment–protein complexes in a subtle way, which is not fully understood. Here we characterized the photophysics and the ultrafast dynamics of four variants of the water-soluble chlorophyll protein (WSCP) as an ideal model system to study the behavior of strongly interacting chlorophylls. We found that when coordinated by the WSCP protein, the presence of the formyl group in chlorophyll b replacing the methyl group in chlorophyll a strongly affects the exciton energy and the dynamics of the system, opening up the possibility of tuning the photophysics and the transport properties of multichromophores by engineering specific interactions with the surroundings. |
| Databáze: | OpenAIRE |
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