2D Electronic Spectroscopy Reveals Excitonic Structure in the Baseplate of a Chlorosome

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10286214" target="_blank" >RIV/00216208:11320/14:10286214 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12310/14:43887165
Result on the web
<a href="http://dx.doi.org/10.1021/jz5005279" target="_blank" >http://dx.doi.org/10.1021/jz5005279</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/jz5005279" target="_blank" >10.1021/jz5005279</a>

Result language
angličtina
Original language name
2D Electronic Spectroscopy Reveals Excitonic Structure in the Baseplate of a Chlorosome
Original language description
In green photosynthetic bacteria, the chlorosome baseplate mediates excitation energy transfer from the interior of the light-harvesting chlorosome toward the reaction centers. However, the electronic states of the baseplate remain unexplored, hinderingthe mechanistic understanding of the baseplate as an excitation energy collector and mediator. Here we use two-dimensional spectroscopy to study the excited state structure and internal energy relaxation in the baseplate of green sulfur bacterium Chlorobaculum tepidum. We resolved an exciton system with four energy states, indicating that the organization of the pigments in the baseplate is more complex than was thought before and constitutes at least four bacteriochlorophyll molecules in a close contact. Based on the finding that the energy of the baseplate states is in the same range as in the adjacent Fenna-Matthews-Olson complex, we propose a "lateral" energy transfer pathway, where excitation energy can flow through the photosynthe
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BO - Biophysics
OECD FORD branch
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Project
<a href="/en/project/GBP501%2F12%2FG055" target="_blank" >GBP501/12/G055: Photosynthesis Research Center</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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