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Counterions and the bacteriorhodopsin proton pump
Author(s) -
Dér A.,
Tóth-Boconádi R.,
Keszthelyi L.
Publication year - 1988
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(88)81147-5
Subject(s) - bacteriorhodopsin , counterion , polarity (international relations) , photoelectric effect , proton , chemistry , membrane , chemical physics , chemical engineering , materials science , ion , physics , optoelectronics , organic chemistry , nuclear physics , biochemistry , engineering , cell
Theoretical and new experimental arguments are given to explain the reversal of photoelectric signals from purple membranes oriented and immobilized in gel due to the presence of TEMED. The continuous current induced by continuous illumination demonstrates a photoelement‐like behaviour, the polarity of which is reversed by TEMED. The data render the counterion‐collapse mechanism highly questionable.