Spectral dynamics in the B800 band of LH2 from Rhodospirillum molischianum: a 
single-molecule study.

Hofman, Clemens; Aartsma, Thijs J.; Michel, Hartmut; Köhler, Jürgen

doi:10.1088/1367-2630/6/1/008

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Spectral dynamics in the B800 band of LH2 from Rhodospirillum molischianum: a single-molecule study.

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Michel, Hartmut
Department of Molecular Membrane Biology, Max Planck Institute of Biophysics, Max Planck Society;

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Citation

Hofman, C., Aartsma, T. J., Michel, H., & Köhler, J. (2004). Spectral dynamics in the B800 band of LH2 from Rhodospirillum molischianum: a single-molecule study. New Journal of Physics, 6, 1-15. doi:10.1088/1367-2630/6/1/008.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0024-DABD-5

Abstract

The BChl a absorptions in the B800 spectrum of individual LH2 complexes from Rhodospirillum molischianum show sudden, reversible spectral jumps between a finite number of spectral positions. From our data, we conclude that these fluctuations result from conformational changes of the protein backbone in close vicinity of the chromophores which provides a sensitive tool to monitor local modulations of the pigment–protein interaction.