2D spectroscopy study of water-soluble chlorophyll-binding protein from Lepidium virginicum

Alster, J., Lokstein, H., Dostál, J., Uchida, A. and Zigmantas, D. (2014) 2D spectroscopy study of water-soluble chlorophyll-binding protein from Lepidium virginicum. Journal of Physical Chemistry B, 118(13), pp. 3524-3531. (doi: 10.1021/jp411174t)

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Abstract

Water-soluble chlorophyll-binding proteins (WSCPs) are interesting model systems for the study of pigment–pigment and pigment–protein interactions. While class IIa WSCP has been extensively studied by spectroscopic and theoretical methods, a comprehensive spectroscopic study of class IIb WSCP was lacking so far despite the fact that its structure was determined by X-ray crystallography. In this paper, results of two-dimensional electronic spectroscopy applied to the class IIb WSCP from Lepidium virginicum are presented. Global analysis of 2D data allowed determination of energy levels and excitation energy transfer pathways in the system. Some additional pathways, not present in class IIa WSCP, were observed. The data were interpreted in terms of a model comprising two interacting chlorophyll dimers. In addition, oscillatory signals were observed and identified as coherent beatings of vibrational origin.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Lokstein, Dr Rer Nat Heiko
Authors: Alster, J., Lokstein, H., Dostál, J., Uchida, A., and Zigmantas, D.
College/School:College of Medical Veterinary and Life Sciences > School of Molecular Biosciences
Journal Name:Journal of Physical Chemistry B
Publisher:American Chemical Society
ISSN:1520-6106
ISSN (Online):1520-5207

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