INVESTIGADORES
OVIEDO Maria Belen
congresos y reuniones científicas
Título:
Protein structure determines the efficient flow of excitations in the Fenna-Matthews-Olson complex
Autor/es:
MARÍA BELÉN OVIEDO; CRISTIÁN G. SÁNCHEZ
Lugar:
Vermont
Reunión:
Conferencia; Gordon Research Conference in Photosynthesis: From Evolution of Fundamental Mechanisms to Radical Re-Engineering; 2014
Institución organizadora:
Gordon Research Conference
Resumen:
The Fenna-Matthews-Olson Complex (FMO) of Prosteochloris aestuarii was the first antenna complex to have its structure determined by x-ray crystallography and servers as an energy funnel from the chlorosome to the reaction center. Atomistic quantum dynamical simulation of energy transfer between pigments using Time Dependent Density Functional Tight Binding [1]. Upon continuous resonant illumination of BChl 8 we study the dipole moment of all pigments as a function of time [2]. The electrostatic field from the protein framework regulates different pathways for energy transfer. In the presence of the protein the excitation transfers fromBChl 8 to BChls 3 and 4 in symmetric fashionfavouring the coherent transfer via two pathways.