Spectral dynamics in the B800 band of LH2 fromRhodospirillum molischianum: a single-molecule study

Clemens Hofmann, Thijs J Aartsma, Hartmut Michel, Jürgen Köhler
2004 New Journal of Physics  
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.
doi:10.1088/1367-2630/6/1/008 fatcat:pjyoth5nv5fejjtczewy7jlcky