Structural changes in bacteriorhodopsin caused by two-photon-induced photobleaching.

Daniel Rhinow1, Martin Imhof, Ivan Chizhik

  • 1Department of Structural Biology, Max-Planck-Institute of Biophysics, Max-von-Laue-Str. 3, D-60438 Frankfurt, Germany.

Summary

Two-photon absorption (TPA) in bacteriorhodopsin (BR) causes structural changes and irreversible Schiff base reduction. This leads to loss of purple membrane (PM) crystalline order and permanent BR shape changes.

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