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Electric Field Effects in Bacteriorhodopsin

Overview
Journal Biophys J
Publisher Cell Press
Specialty Biophysics
Date 1977 Jul 1
PMID 880320
Citations 13
Authors
R Shinar
S Druckmann
M OTTOLENGHI
R Korenstein
Affiliations
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Abstract

Exposure of aqueous suspensions of fragments of the purple membrane of Halobacterium halobium to electric field pulses leads to transient linear dichroism phenomena. The effects are interpreted in terms of field-induced alignments of the bacteriorhodopsin chromophore. Two observed relaxation times (tau) are attributed to rotation of the whole membrane fragments (tau s approximately 100 ms), and to a much faster reorientation of the chromophore within membrane (tau f approximately 260 microns).

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References
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