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. 1997 Jan;72(1):24–36. doi: 10.1016/S0006-3495(97)78644-2

Ultrafast absorption difference spectra of the Fenna-Matthews-Olson protein at 19 K: experiment and simulations.

D R Buck 1, S Savikhin 1, W S Struve 1
PMCID: PMC1184294  PMID: 8994590

Abstract

We describe simulations of absorption difference spectra in strongly coupled photosynthetic antennas. In the presence of large resonance couplings, distinctive features arise from excited-state absorption transitions between one- and two-exciton levels. We first outline the theory for the heterodimer and for the general N-pigment system, and we demonstrate the transition between the strong and weak coupling regimes. The theory is applied to Fenna-Matthews-Olson (FMO) bacteriochlorophyll a protein trimers from the green photosynthetic bacterium Prosthecochloris aestuarii and then compared with experimental low-temperature absorption difference spectra of FMO trimers from the green bacterium Chlorobium tepidum.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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