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Novoderezhkin V, van Grondelle R. Spectra and Dynamics in the B800 Antenna: Comparing Hierarchical Equations, Redfield and Förster Theories. J Phys Chem B 2013; 117:11076-90. [DOI: 10.1021/jp400957t] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Vladimir Novoderezhkin
- A. N. Belozersky Institute
of
Physico-Chemical Biology, Moscow State University, Moscow, Russia
| | - Rienk van Grondelle
- Department
of Physics and Astronomy,
Faculty of Sciences, VU University Amsterdam, Amsterdam, The Netherlands
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2
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Kumar P, Jang S. Emission lineshapes of the B850 band of light-harvesting 2 (LH2) complex in purple bacteria: A second order time-nonlocal quantum master equation approach. J Chem Phys 2013; 138:135101. [DOI: 10.1063/1.4795824] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Affiliation(s)
- Praveen Kumar
- Department of Chemistry and Biochemistry, Queens College of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367, USA
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3
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Jang S, Silbey RJ, Kunz R, Hofmann C, Köhler J. Is There Elliptic Distortion in the Light Harvesting Complex 2 of Purple Bacteria? J Phys Chem B 2011; 115:12947-53. [DOI: 10.1021/jp202344s] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Seogjoo Jang
- Department of Chemistry and Biochemistry, Queens College of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367-1597, United States
| | - Robert J. Silbey
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Ralf Kunz
- Experimental Physics IV and Bayreuth Institute of Macromolecular Research (BIMF), Universität Bayreuth, 95447 Bayreuth, Germany
| | - Clemens Hofmann
- Experimental Physics IV and Bayreuth Institute of Macromolecular Research (BIMF), Universität Bayreuth, 95447 Bayreuth, Germany
| | - Jürgen Köhler
- Experimental Physics IV and Bayreuth Institute of Macromolecular Research (BIMF), Universität Bayreuth, 95447 Bayreuth, Germany
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4
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Pflock TJ, Oellerich S, Southall J, Cogdell RJ, Ullmann GM, Köhler J. The Electronically Excited States of LH2 Complexes from Rhodopseudomonas acidophila Strain 10050 Studied by Time-Resolved Spectroscopy and Dynamic Monte Carlo Simulations. I. Isolated, Non-Interacting LH2 Complexes. J Phys Chem B 2011; 115:8813-20. [DOI: 10.1021/jp202353c] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tobias J. Pflock
- Experimental Physics IV and BIMF, University of Bayreuth, D-95440 Bayreuth, Germany
| | - Silke Oellerich
- Experimental Physics IV and BIMF, University of Bayreuth, D-95440 Bayreuth, Germany
| | - June Southall
- Institute of Molecular, Cell and Systems Biology, College of Medical Veterinary and Life Sciences, Biomedical Research Building, University of Glasgow, Glasgow G12 8QQ, Scotland, U.K
| | - Richard J. Cogdell
- Institute of Molecular, Cell and Systems Biology, College of Medical Veterinary and Life Sciences, Biomedical Research Building, University of Glasgow, Glasgow G12 8QQ, Scotland, U.K
| | - G. Matthias Ullmann
- Computational Biochemistry/Bioinformatics, University of Bayreuth, D-95440 Bayreuth
| | - Jürgen Köhler
- Experimental Physics IV and BIMF, University of Bayreuth, D-95440 Bayreuth, Germany
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5
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Jankowiak R, Reppert M, Zazubovich V, Pieper J, Reinot T. Site Selective and Single Complex Laser-Based Spectroscopies: A Window on Excited State Electronic Structure, Excitation Energy Transfer, and Electron–Phonon Coupling of Selected Photosynthetic Complexes. Chem Rev 2011; 111:4546-98. [DOI: 10.1021/cr100234j] [Citation(s) in RCA: 122] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ryszard Jankowiak
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Mike Reppert
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
| | - Valter Zazubovich
- Department of Physics, Concordia University, Montreal H4B1R6 Quebec, Canada
| | - Jörg Pieper
- Max-Volmer-Laboratories for Biophysical Chemistry, Technical University of Berlin, Germany
- Institute of Physics, University of Tartu, Riia 142, 51014 Tartu, Estonia
| | - Tonu Reinot
- Department of Chemistry, Kansas State University, Manhattan, Kansas 66506, United States
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6
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Liu K, Liu W, Yan Y, Dong Z, Xu C, Qian S. Excited-state dynamics in light-harvesting complex of Rhodobacter sphaeroides. Sci Bull (Beijing) 2008. [DOI: 10.1007/s11434-008-0187-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Jang S, Newton MD, Silbey RJ. Multichromophoric Förster Resonance Energy Transfer from B800 to B850 in the Light Harvesting Complex 2: Evidence for Subtle Energetic Optimization by Purple Bacteria. J Phys Chem B 2007; 111:6807-14. [PMID: 17439170 DOI: 10.1021/jp070111l] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This work provides a detailed account of the application of our multichromophoric Förster resonance energy transfer (MC-FRET) theory (Phys. Rev. Lett. 2004, 92, 218301) for the calculation of the energy transfer rate from the B800 unit to the B850 unit in the light harvesting complex 2 (LH2) of purple bacteria. The model Hamiltonian consists of the B800 unit represented by a single bacteriochlorophyll (BChl), the B850 unit represented by its entire set of BChls, the electronic coupling between the two units, and the bath terms representing all environmental degrees of freedom. The model parameters are determined, independent of the rate calculation, from the literature data and by a fitting to an ensemble line shape. Comparing our theoretical rate and a low-temperature experimental rate, we estimate the magnitude of the BChl-Qy transition dipole to be in the range of 6.5-7.5 D, assuming that the optical dielectric constant of the medium is in the range of 1.5-2. We examine how the bias of the average excitation energy of the B800-BChl relative to that of the B850-BChl affects the energy transfer time by calculating the transfer rates based on both our MC-FRET theory and the original FRET theory, varying the value of the bias. Within our model, we find that the value of bias 260 cm-1, which we determine from the fitting to an ensemble line shape, is very close to the value at which the ratio between MC-FRET and FRET rates is a maximum. This provides evidence that the bacterial system utilizes the quantum mechanical coherence among the multiple chromophores within the B850 in a constructive way so as to achieve efficient energy transfer from B800 to B850.
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Affiliation(s)
- Seogjoo Jang
- Department of Chemistry and Biochemistry, Queens College of the City University of New York, 65-30 Kissena Boulevard, Flushing, New York 11367-1597, USA.
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8
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Liu W, Liu Y, Yan Y, Liu K, Guo L, Xu C, Qian S. The Observation of Ultrafast Excited-state Dynamical Evolution In B800- Partially or Completely Released LH2 of Rhodobacter sphaeroides601 at Room Temperature. J Biomol Struct Dyn 2006; 23:529-36. [PMID: 16494502 DOI: 10.1080/07391102.2006.10507077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Photodynamics of two kinds of peripheral antenna complexes (LH2 of Rhodobacter sphaeroides, native LH2 (RS601) and B800-released LH2 where B800-BChls were partially or completely removed with different pH treatments), were studied using femtosecond pump-probe technique at different laser wavelengths. The obtained results for these samples with different B800/B850 ratios demonstrated that under the excitation around B800 nm, the photoabsorption and photobleaching dynamics were caused by the direct excitation of upper excitonic levels of B850 and excited state of B800 pigments, respectively. Furthermore, the removal of B800 pigments had little effect on the energy transfer processes of B850 interband/intraband transfer.
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Affiliation(s)
- Weimin Liu
- Physics Department, Fudan University, Shanghai 200433, China
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9
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Cheng YC, Silbey RJ. Coherence in the B800 ring of purple bacteria LH2. PHYSICAL REVIEW LETTERS 2006; 96:028103. [PMID: 16486648 DOI: 10.1103/physrevlett.96.028103] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2005] [Indexed: 05/06/2023]
Abstract
We study the quantum coherence in the B800 ring and how it affects the dynamics of excitation energy transfer (EET) in photo-synthetic light-harvesting systems. From an analysis of the spectrum, we determine the disorder parameters for the B800 ring and show that the relatively weak electronic coupling between B800 pigments subtly changes the dynamics of EET and improves the uniformity and robustness of B800 --> B850 EET at room temperature, an example of how a multichromophoric assembly can exploit coherence to optimize the efficiency of photosynthesis. A molecular-level description for the dynamics of EET in the light-harvesting system may prove useful for understanding other nanoscale molecular assemblies and designing efficient nanoscale optical devices.
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Affiliation(s)
- Y C Cheng
- Department of Chemistry and Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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10
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van Grondelle R, Novoderezhkin VI. Energy transfer in photosynthesis: experimental insights and quantitative models. Phys Chem Chem Phys 2005; 8:793-807. [PMID: 16482320 DOI: 10.1039/b514032c] [Citation(s) in RCA: 380] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We overview experimental and theoretical studies of energy transfer in the photosynthetic light-harvesting complexes LH1, LH2, and LHCII performed during the past decade since the discovery of high-resolution structure of these complexes. Experimental findings obtained with various spectroscopic techniques makes possible a modelling of the excitation dynamics at a quantitative level. The modified Redfield theory allows a precise assignment of the energy transfer pathways together with a direct visualization of the whole excitation dynamics where various regimes from a coherent motion of delocalized exciton to a hopping of localized excitations are superimposed. In a single complex it is possible to observe the switching between these regimes driven by slow conformational motion (as we demonstrate for LH2). Excitation dynamics under quenched conditions in higher-plant complexes is discussed.
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Affiliation(s)
- Rienk van Grondelle
- Department of Biophysics, Faculty of Sciences, Vrije Universiteit, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands.
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11
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Rätsep M, Hunter CN, Olsen JD, Freiberg A. Band structure and local dynamics of excitons in bacterial light-harvesting complexes revealed by spectrally selective spectroscopy. PHOTOSYNTHESIS RESEARCH 2005; 86:37-48. [PMID: 16172924 DOI: 10.1007/s11120-005-2749-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2005] [Accepted: 02/21/2005] [Indexed: 05/04/2023]
Abstract
Hole-burned absorption and line-narrowed fluorescence spectra are studied at 5 K in wild type and mutant LH1 and LH2 antenna preparations from the photosynthetic purple bacterium Rhodobacter sphaeroides. Evidence was found in all samples, even in intact membranes, of the presence of a broad distribution of bacteriochlorophyll species that are unable to communicate energy between each other and to the exciton states of functional antenna complexes. The distribution maximum of these localized species determined by zero phonon hole action spectroscopy is at 783.5 nm in purified LH1 complexes and at 786.8 nm in B850-only mutant LH2 complexes. A well-resolved peak at 807 nm in LH1 complexes is assigned to the exciton band structure of functional core antenna complexes. Similar structure in LH2 complexes overlaps with the distribution of localized species. Off-diagonal (structural) disorder may be responsible for this exciton band structure. Our data also imply that pair-wise inter-chlorophyll couplings determine the resonance fluorescence lineshape of excitonic polarons.
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Affiliation(s)
- Margus Rätsep
- Institute of Physics, University of Tartu, Riia 142, Tartu, 51014, Estonia
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12
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Subramanian V, Evans DG. Excitation Energy Transfer in Model Light-Harvesting Antennae. J Phys Chem B 2003. [DOI: 10.1021/jp034196b] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vijaya Subramanian
- Department of Chemistry, University of New Mexico, Albuquerque, New Mexico 87113
| | - Deborah G. Evans
- Department of Chemistry, University of New Mexico, Albuquerque, New Mexico 87113
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13
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Novoderezhkin V, Wendling M, van Grondelle R. Intra- and Interband Transfers in the B800−B850 Antenna of Rhodospirillum molischianum: Redfield Theory Modeling of Polarized Pump−Probe Kinetics. J Phys Chem B 2003. [DOI: 10.1021/jp035432l] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vladimir Novoderezhkin
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Leninskie Gory, 119992, Moscow, Russia, and Department of Biophysics and Physics of Complex Systems, Faculty of Sciences, Vrije Universiteit, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands
| | - Markus Wendling
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Leninskie Gory, 119992, Moscow, Russia, and Department of Biophysics and Physics of Complex Systems, Faculty of Sciences, Vrije Universiteit, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands
| | - Rienk van Grondelle
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Leninskie Gory, 119992, Moscow, Russia, and Department of Biophysics and Physics of Complex Systems, Faculty of Sciences, Vrije Universiteit, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands
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14
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Jenkins RD, Andrews DL. Exciton resonance energy transfer: effects of geometry and transition moment orientation in model photosystems. Photochem Photobiol Sci 2003; 2:130-5. [PMID: 12664973 DOI: 10.1039/b209449e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
When a photon is absorbed by a group of identical chromophores the excited state may be described as an exciton. Such excitons play a significant role in the energetics of many photoactive systems, and in particular the photosynthetic unit. This work concerns the transfer of excitonic energy to a donor, focussing on the effects of geometry. To facilitate the analysis, calculated quantum amplitudes are expressed in terms of orientation factors with clear physical significance. In detailed calculations on an idealised, three-fold symmetric photosystem it is shown that intermolecular vectors and relative transition dipole moment orientations directly affect transfer rates, and the detailed form of that dependence is determined. Differences in the linear combinations which form the excitonic states are fully investigated and various configurations exclusively exhibiting excitonic behaviour are identified.
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Affiliation(s)
- Robert D Jenkins
- School of Chemical Sciences and Pharmacy, University of East Anglia, Norwich, Norfolk, UK
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15
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Wendling M, Mourik FV, van Stokkum IHM, Salverda JM, Michel H, Grondelle RV. Low-intensity pump-probe measurements on the B800 band of Rhodospirillum molischianum. Biophys J 2003; 84:440-9. [PMID: 12524297 PMCID: PMC1302625 DOI: 10.1016/s0006-3495(03)74864-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We have measured low-intensity, polarized one-color pump-probe traces in the B800 band of the light-harvesting complex LH2 of Rhodospirillum molischianum at 77 K. The excitation/detection wavelength was tuned through the B800 band. A single-wavelength and a global target analysis of the data were performed with a model that accounts for excitation energy transfer among the B800 molecules and from B800 to B850. By including the anisotropy of the signals into the fitting procedure, both transfer processes could be separated. It was estimated in the global target analysis that the intra-B800 energy transfer, i.e., the hopping of the excitation from one B800 to another B800 molecule, takes approximately 0.5 ps at 77 K. This transfer time increases with the excitation/detection wavelength from 0.3 ps on the blue side of the B800 band to approximately 0.8 ps on the red side. The residual B800 anisotropy shows a wavelength dependence as expected for energy transfer within an inhomogeneously broadened cluster of weakly coupled pigments. In the global target analysis, the transfer time from B800 to B850 was determined to be approximately 1.7 ps at 77 K. In the single-wavelength analysis, a speeding-up of the B800 --> B850 energy transfer rate toward the blue edge of the B800 band was found. This nicely correlates with the proposed position of the suggested high-exciton component of the B850 band acting as an additional decay channel for B800 excitations.
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Affiliation(s)
- Markus Wendling
- Department of Biophysics and Physics of Complex Systems, Division of Physics and Astronomy, Faculty of Sciences, Vrije Universiteit, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands.
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16
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Zazubovich V, Jankowiak R, Small GJ. A High-Pressure Spectral Hole Burning Study of Correlation between Energy Disorder and Excitonic Couplings in the LH 2 Complex from Rhodopseudomonas Acidophila. J Phys Chem B 2002. [DOI: 10.1021/jp020540d] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- V. Zazubovich
- Ames Laboratory, U.S. Department of Energy and Department of Chemistry, Iowa State University, Ames, Iowa 50011
| | - R. Jankowiak
- Ames Laboratory, U.S. Department of Energy and Department of Chemistry, Iowa State University, Ames, Iowa 50011
| | - G. J. Small
- Ames Laboratory, U.S. Department of Energy and Department of Chemistry, Iowa State University, Ames, Iowa 50011
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