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Optical properties, excitation energy and primary charge transfer in photosystem II: Theory meets experiment

Paper ID Volume ID Publish Year Pages File Format Full-Text
29619 44425 2011 16 PDF Available
Title
Optical properties, excitation energy and primary charge transfer in photosystem II: Theory meets experiment
Abstract

In this review we discuss structure–function relationships of the core complex of photosystem II, as uncovered from analysis of optical spectra of the complex and its subunits. Based on descriptions of optical difference spectra including site directed mutagenesis we propose a revision of the multimer model of the symmetrically arranged reaction center pigments, described by an asymmetric exciton Hamiltonian. Evidence is provided for the location of the triplet state, the identity of the primary electron donor, the localization of the cation and the secondary electron transfer pathway in the reaction center. We also discuss the stationary and time-dependent optical properties of the CP43 and CP47 subunits and the excitation energy transfer and trapping-by-charge-transfer kinetics in the core complex.

► Structure-function relationships of photosystem II are uncovered. ► An asymmetric exciton model is proposed. ► Evidence is provided for the identity of functional states. ► The light-harvesting is shown to be transfer-to-the-trap limited.

Keywords
Excitons; CP43 complex; CP47 complex; D1D2cytb559 complex; Photosynthetic reaction center
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Optical properties, excitation energy and primary charge transfer in photosystem II: Theory meets experiment
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 104, Issues 1–2, July–August 2011, Pages 126–141
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us