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Proceedings Paper

Dynamics of excitation energy transfer in phycobiliproteins
Author(s): Xiguang Zheng; He Zhou Wang; Fuli Zhao; Zhaolan Gao; Zhenxin Yu
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Paper Abstract

Theoretical descriptions of excitation energy transfer between chromophores in allophycocyanin are presented, including bilateral energy transfer paths between chromophores, and are expressed, based on Foster interaction mechanism, as Pauli master equations. Group analysis in C3 symmetry is performed to carry out analytic expressions for fluorescence decays which is generally of triexponential with effects of chromophore coupling and exciton splitting taken account. It is pointed out that the time constant of each decay component contains mixed information of different energy transfer paths, and therefore show its dependence on subtle configuration of chromophores, probably related to site heterogeneity and thus to inhomogeneous broadening previously observed.

Paper Details

Date Published: 17 August 1994
PDF: 11 pages
Proc. SPIE 2137, Time-Resolved Laser Spectroscopy in Biochemistry IV, (17 August 1994); doi: 10.1117/12.182762
Show Author Affiliations
Xiguang Zheng, Zhongshan Univ. (China)
He Zhou Wang, Zhongshan Univ. (China)
Fuli Zhao, Zhongshan Univ. (China)
Zhaolan Gao, Zhongshan Univ. (China)
Zhenxin Yu, Zhongshan Univ. (China)

Published in SPIE Proceedings Vol. 2137:
Time-Resolved Laser Spectroscopy in Biochemistry IV
Joseph R. Lakowicz, Editor(s)

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