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Title: Effect of Spectral Density Shapes on the Excitonic Structure and Dynamics of the Fenna–Matthews–Olson Trimer from Chlorobaculum tepidum

Journal Article · · Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory
 [1];  [2];  [1]
  1. Kansas State Univ., Manhattan, KS (United States)
  2. Washington Univ., St. Louis, MO (United States)

The Fenna–Matthews–Olson (FMO) trimer (composed of identical subunits) from the green sulfur bacterium Chlorobaculum tepidum is an important protein model system to study exciton dynamics and excitation energy transfer (EET) in photosynthetic complexes. In addition, FMO is a popular model for excitonic calculations, with many theoretical parameter sets reported describing different linear and nonlinear optical spectra. Due to fast exciton relaxation within each subunit, intermonomer EET results predominantly from the lowest energy exciton states (contributed to by BChl α 3 and 4). Using experimentally determined shapes for the spectral densities, simulated optical spectra are obtained for the entire FMO trimer. Simultaneous fits of low-temperature absorption, fluorescence, and hole-burned spectra place constraints on the determined pigment site energies, providing a new Hamiltonian that should be further tested to improve modeling of 2D electronic spectroscopy data and our understanding of coherent and dissipation effects in this important protein complex.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Photosynthetic Antenna Research Center (PARC); Kansas State Univ., Manhattan, KS (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001035; SC0006678
OSTI ID:
1387903
Journal Information:
Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory, Vol. 120, Issue 31; Related Information: PARC partners with Washington University in St. Louis (lead); University of California, Riverside; University of Glasgow, UK; Los Alamos National Laboratory; University of New Mexico; New Mexico Corsortium; North Carolina State University; Northwestern University; Oak Ridge National Laboratory; University of Pennsylvania; Sandia National Laboratories; University of Sheffield, UK; ISSN 1089-5639
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

References (64)

The FMO Protein journal January 2004
Revisiting the optical properties of the FMO protein journal March 2010
Chlorophyll arrangement in a bacteriochlorophyll protein from Chlorobium limicola journal December 1975
The structural basis for the difference in absorbance spectra for the FMO antenna protein from various green sulfur bacteria journal May 2009
The three-dimensional structure of the FMO protein from Pelodictyon phaeum and the implications for energy transfer journal December 2010
Reinterpretation of the electron density at the site of the eighth bacteriochlorophyll in the FMO protein from Pelodictyon phaeum journal March 2012
Evolution of photosystem I - from symmetry through pseudosymmetry to asymmetry journal March 2004
Native Electrospray Mass Spectrometry Reveals the Nature and Stoichiometry of Pigments in the FMO Photosynthetic Antenna Protein journal May 2011
Contribution of bacteriochlorophyll conformation to the distribution of site-energies in the FMO protein journal April 2016
Multireference Excitation Energies for Bacteriochlorophylls A within Light Harvesting System 2 journal February 2016
Oscillating anisotropies in a bacteriochlorophyll protein: Evidence for quantum beating between exciton levels journal November 1997
Evidence for wavelike energy transfer through quantum coherence in photosynthetic systems journal April 2007
Long-lived quantum coherence in photosynthetic complexes at physiological temperature journal July 2010
Zwischenmolekulare Energiewanderung und Fluoreszenz journal January 1948
On the Theory of Relaxation Processes journal January 1957
The Theory of Relaxation Processes book January 1965
On the relation of protein dynamics and exciton relaxation in pigment–protein complexes: An estimation of the spectral density and a theory for the calculation of optical spectra journal June 2002
How Proteins Trigger Excitation Energy Transfer in the FMO Complex of Green Sulfur Bacteria journal October 2006
Calculation of pigment transition energies in the FMO protein: From simplicity to complexity and back journal October 2007
The Eighth Bacteriochlorophyll Completes the Excitation Energy Funnel in the FMO Protein journal December 2010
Exciton Analysis in 2D Electronic Spectroscopy journal June 2005
Correlated driving and dissipation in two-dimensional spectroscopy journal January 2013
An efficient method to calculate excitation energy transfer in light-harvesting systems: application to the Fenna–Matthews–Olson complex journal November 2011
Absence of Quantum Oscillations and Dependence on Site Energies in Electronic Excitation Transfer in the Fenna–Matthews–Olson Trimer journal October 2011
Efficient and accurate simulations of two-dimensional electronic photon-echo signals: Illustration for a simple model of the Fenna–Matthews–Olson complex journal January 2010
Theoretical examination of quantum coherence in a photosynthetic system at physiological temperature journal October 2009
Simulation of the two-dimensional electronic spectra of the Fenna-Matthews-Olson complex using the hierarchical equations of motion method journal May 2011
Modelling of oscillations in two-dimensional echo-spectra of the Fenna–Matthews–Olson complex journal February 2012
Long-Lived Electronic Coherence in Dissipative Exciton Dynamics of Light-Harvesting Complexes journal September 2012
Exciton transfer dynamics and quantumness of energy transfer in the Fenna-Matthews-Olson complex journal October 2011
Simulating signatures of two-dimensional electronic spectra of the Fenna-Matthews-Olson complex: By using a numerical path integral journal July 2014
On the Controversial Nature of the 825 nm Exciton Band in the FMO Protein Complex journal March 2014
Modeling of Various Optical Spectra in the Presence of Slow Excitation Energy Transfer in Dimers and Trimers with Weak Interpigment Coupling: FMO as an Example journal February 2014
On destabilization of the Fenna–Matthews–Olson complex of Chlorobaculum tepidum journal March 2014
Light Harvesting in Photosystem II Core Complexes Is Limited by the Transfer to the Trap:  Can the Core Complex Turn into a Photoprotective Mode? journal April 2008
Intermolecular Coulomb Couplings from Ab Initio Electrostatic Potentials:  Application to Optical Transitions of Strongly Coupled Pigments in Photosynthetic Antennae and Reaction Centers journal August 2006
On the Shape of the Phonon Spectral Density in Photosynthetic Complexes journal June 2013
Electron–phonon and vibronic couplings in the FMO bacteriochlorophyll a antenna complex studied by difference fluorescence line narrowing journal November 2007
Spectral Hole Burning and Fluorescence Line Narrowing in Subunits of the Light-Harvesting Complex LH1 of Purple Bacteria journal November 1999
A Simplex Method for Function Minimization journal January 1965
Exciton Dynamics in FMO Bacteriochlorophyll Protein at Low Temperatures journal September 1997
Toward Level-to-Level Energy Transfers in Photosynthesis:  The Fenna−Matthews−Olson Protein journal July 1998
Excited-State Structure and Dynamics in FMO Antenna Complexes from Photosynthetic Green Sulfur Bacteria journal December 1998
Electron−Vibrational Coupling in the Fenna−Matthews−Olson Complex of Prosthecochloris aestuarii Determined by Temperature-Dependent Absorption and Fluorescence Line-Narrowing Measurements May 2000
Liquid Fragility and the Glass Transition in Water and Aqueous Solutions journal August 2002
The ‘glass transition’ in protein dynamics: what it is, why it occurs, and how to exploit it journal September 2003
Exciton interaction among chlorophyll molecules in bacteriochlorophyll a proteins and bacteriochlorophyll a reaction center complexes from green bacteria journal June 1976
Exciton Simulations of Optical Spectra of the FMO Complex from the Green Sulfur Bacterium Chlorobium tepidum at 6 K journal November 1998
The Fate of the Triplet Excitations in the Fenna–Matthews–Olson Complex journal April 2015
Intensity Dependence of the Excited State Lifetimes and Triplet Conversion Yield in the Fenna–Matthews–Olson Antenna Protein journal February 2014
From Atomistic Modeling to Excitation Transfer and Two-Dimensional Spectra of the FMO Light-Harvesting Complex journal July 2011
Extracting the Excitonic Hamiltonian of the Fenna-Matthews-Olson Complex Using Three-Dimensional Third-Order Electronic Spectroscopy journal April 2011
Membrane orientation of the FMO antenna protein from Chlorobaculum tepidum as determined by mass spectrometry-based footprinting journal April 2009
 -Helices direct excitation energy flow in the Fenna Matthews Olson protein journal October 2007
Chemical oxidation of the FMO antenna protein from Chlorobaculum tepidum journal July 2013
Spectral shift mechanisms of chlorophylls in liquids and proteins journal February 2013
Alternative Excitonic Structure in the Baseplate (BChl a –CsmA Complex) of the Chlorosome from Chlorobaculum tepidum journal June 2015
Efficient Energy Transfer in Light-Harvesting Systems, III: The Influence of the Eighth Bacteriochlorophyll on the Dynamics and Efficiency in FMO journal November 2011
Atomistic Study of Energy Funneling in the Light-Harvesting Complex of Green Sulfur Bacteria journal January 2014
Dynamics of Energy and Electron Transfer in the FMO-Reaction Center Core Complex from the Phototrophic Green Sulfur Bacterium Chlorobaculum tepidum journal June 2015
Fast Energy Transfer and Exciton Dynamics in Chlorosomes of the Green Sulfur Bacterium Chlorobium tepidum journal June 1998
Theory and Simulation of the Environmental Effects on FMO Electronic Transitions journal June 2011
Influence of Site-Dependent Pigment–Protein Interactions on Excitation Energy Transfer in Photosynthetic Light Harvesting journal April 2013
Influence of Force Fields and Quantum Chemistry Approach on Spectral Densities of BChl a in Solution and in FMO Proteins journal July 2015

Cited By (3)

On uncorrelated inter-monomer Förster energy transfer in Fenna–Matthews–Olson complexes journal February 2019
Near shot-noise limited time-resolved circular dichroism pump-probe spectrometer journal March 2018
Two-dimensional electronic spectra of the photosynthetic apparatus of green sulfur bacteria journal March 2017