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ANALYSIS AND MODELING OF COMPLEX LIVING SYSTEMS
Exciton interaction of the chromophores — a tool to fine-tune themechanism of non-photochemical quenching of phycobilisome in
P. M. Krasilnikova, D. V. Zlenkoa, I. N. Stadnichukb a Moscow State University, 1-12 Leninskie Gory, Moscow, 119991, Russia
b A. N. Bach Institute of Biochemistry, 33-2 Leninski st., Moscow, 119071, Russia
Abstract:
It was carried out a theoretical analysis of the energy migration rate in the process of non-photochemical quenching of fluorescence pigment-protein complex that performed by means of orange carotenoid-protein in the phycobilisomes of cyanobacteria. It is shown that the observed rate of energy transfercan not be interpreted in the framework of inductive-resonant mechanism of energy migration (Förster's theory). On the contrary, according to the calculations the implementation of the exciton mechanism is fully consistent with the experimentally observed high quenching rate. An essential feature of the implementation of the exciton mechanism is to comply with a number of structural and functional conditions that require fine-tuning of themolecular system in the interaction of donor and acceptor molecules both each other and with the local molecular environment.
Keywords:
energy transfer, exciton, transition dipole moment, absorption and fluorescence spectra.
Received: 24.09.2014 Revised: 05.11.2014
Citation:
P. M. Krasilnikov, D. V. Zlenko, I. N. Stadnichuk, “Exciton interaction of the chromophores — a tool to fine-tune themechanism of non-photochemical quenching of phycobilisome in”, Computer Research and Modeling, 7:1 (2015), 125–144
Linking options:
https://www.mathnet.ru/eng/crm174 https://www.mathnet.ru/eng/crm/v7/i1/p125
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Abstract page: | 199 | Full-text PDF : | 200 | References: | 21 |
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