2D Spectroscopy Study of Water-Soluble Chlorophyll-Binding Protein from Lepidium virginicum
| العنوان: | 2D Spectroscopy Study of Water-Soluble Chlorophyll-Binding Protein from Lepidium virginicum |
|---|---|
| المؤلفون: | Alster, Jan, Lokstein, Heiko, Dostal, Jakub, Uchida, Akira, Zigmantas, Donatas |
| المصدر: | The Journal of Physical Chemistry Part B. 118(13):3524-3531 |
| مصطلحات موضوعية: | Naturvetenskap, Fysik, Atom- och molekylfysik och optik, Natural Sciences, Physical Sciences, Atom and Molecular Physics and Optics |
| الوصف: | 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. |
| وصف الملف: | electronic |
| URL الوصول: | https://lup.lub.lu.se/record/4439545 https://portal.research.lu.se/files/102846731/Alster_et_al_2014_JPCB_full.pdf http://dx.doi.org/10.1021/jp411174t |
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