Circular dichroism of carotenoids in bacterial light-harvesting complexes: Experiments and modeling

S. Georgakopoulou, R. van Grondelle, G. van der Zwan

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Abstract

In this work we investigate the origin and characteristics of the circular dichroism (CD) spectrum of rhodopin glucoside and lycopene in the light-harvesting 2 complex of Rhodopseudomonas acidophila and Rhodospirillum molischianum, respectively. We successfully model their absorption and CD spectra based on the high-resolution structures. We assume that these spectra originate from seven interacting transition dipole moments: the first corresponds to the 0-0 transition of the carotenoid, whereas the remaining six represent higher vibronic components of the S
Original languageEnglish
Pages (from-to)3010-3022
JournalBiophysical Journal
Volume87
Issue number5
DOIs
Publication statusPublished - 2004

Bibliographical note

Circular dichroism of carotenoids in bacterial light-harvesting complexes: Experiments and modeling

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