Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1943755 | Biochimica et Biophysica Acta (BBA) - Bioenergetics | 2006 | 5 Pages |
Abstract
Modeling of excitation transfer pathways have been carried out for the structure of Spirulina platensis C-phycocyanin. Calculations by Förster mechanism using the crystal structure coordinates determined in our laboratory indicate ultra-fast lateral energy transfer rates between pairs of chromophores attached to two adjacent hexamer disks. The pairwise transfer times of the order of a few pico-seconds correspond to resonance transitions between peripheral β155 chromophores. A quantitative lateral energy transfer model for C-phycocyanin light-harvesting antenna rods that is suggestive to its native structural organization emerges from this study.
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Authors
Anil K. Padyana, S. Ramakumar,