PERFORM Publications

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Title		Authors	PubMed ID
1	Low-temperature protein dynamics of the B800 molecules in the LH2 light-harvesting complex: spectral hole burning study and comparison with single photosynthetic complex spectroscopy.	Grozdanov D, Herascu N, Reinot T, Jankowiak R, Zazubovich V	20166717 PHYSICS
2	Parameters of the protein energy landscapes of several light-harvesting complexes probed via spectral hole growth kinetics measurements.	Herascu N, Najafi M, Amunts A, Pieper J, Irrgang KD, Picorel R, Seibert M, Zazubovich V	21391534 PHYSICS
3	Effects of the distributions of energy or charge transfer rates on spectral hole burning in pigment-protein complexes at low temperatures.	Herascu N, Ahmouda S, Picorel R, Seibert M, Jankowiak R, Zazubovich V	22046956 PHYSICS
4	Spectral hole burning, recovery, and thermocycling in chlorophyll-protein complexes: distributions of barriers on the protein energy landscape.	Najafi M, Herascu N, Seibert M, Picorel R, Jankowiak R, Zazubovich V	22957798 PHYSICS
5	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.	Herascu N, Kell A, Acharya K, Jankowiak R, Blankenship RE, Zazubovich V	24506338 PHYSICS
6	Conformational Changes in Pigment-Protein Complexes at Low Temperatures-Spectral Memory and a Possibility of Cooperative Effects.	Najafi M, Herascu N, Shafiei G, Picorel R, Zazubovich V	25985255 PHYSICS
7	Spectral Hole Burning in Cyanobacterial Photosystem I with P700 in Oxidized and Neutral States.	Herascu N, Hunter MS, Shafiei G, Najafi M, Johnson TW, Fromme P, Zazubovich V	27661089 CHEMBIOCHEM

Title:	Low-temperature protein dynamics of the B800 molecules in the LH2 light-harvesting complex: spectral hole burning study and comparison with single photosynthetic complex spectroscopy.
Authors:	Grozdanov D, Herascu N, Reinot T, Jankowiak R, Zazubovich V
Link:	https://www.ncbi.nlm.nih.gov/pubmed/20166717?dopt=Abstract
Publication:
Keywords:
PMID:	20166717	Category:	J Phys Chem B	Date Added:	2019-06-04
Dept Affiliation:	PHYSICS 1 Department of Physics, Concordia University, 7141 Sherbrooke Street West, Montreal, Quebec H4B 1R6, Canada.

Description:

Low-temperature protein dynamics of the B800 molecules in the LH2 light-harvesting complex: spectral hole burning study and comparison with single photosynthetic complex spectroscopy.

J Phys Chem B. 2010 Mar 18;114(10):3426-38

Authors: Grozdanov D, Herascu N, Reinot T, Jankowiak R, Zazubovich V

Abstract

Previously published and new spectral hole burning (SHB) data on the B800 band of LH2 light-harvesting antenna complex of Rps. acidophila are analyzed in light of recent single photosynthetic complex spectroscopy (SPCS) results (for a review, see Berlin et al. Phys. Life Rev. 2007, 4, 64.). It is demonstrated that, in general, SHB-related phenomena observed for the B800 band are in qualitative agreement with the SPCS data and the protein models involving multiwell multitier protein energy landscapes. Regarding the quantitative agreement, we argue that the single-molecule behavior associated with the fastest spectral diffusion (smallest barrier) tier of the protein energy landscape is inconsistent with the SHB data. The latter discrepancy can be attributed to SPCS probing not only the dynamics of of the protein complex per se, but also that of the surrounding amorphous host and/or of the host-protein interface. It is argued that SHB (once improved models are developed) should also be able to provide the average magnitudes and probability distributions of light-induced spectral shifts and could be used to determine whether SPCS probes a set of protein complexes that are both intact and statistically relevant. SHB results are consistent with the B800 --> B850 energy-transfer models including consideration of the whole B850 density of states.

PMID: 20166717 [PubMed - indexed for MEDLINE]

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