Angle of the retinal of bacteriorhodopsin in blue membrane.
The electric dichroism of purple and cation-depleted (blue) membrane was measured in a.c. electric fields at saturation. A decrease of 5.5 degrees in the direction of the chromophore transition moment with respect to the membrane normal was found upon removal of cations from purple membrane.
Institute of Biophysics, Biological Research Center, Szeged, Hungary.
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Tóth-Boconádi
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Taneva
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Keszthelyi