Bacteriorhodopsin as a possible chloride pump
- 18 December 1989
- journal article
- Published by Wiley in FEBS Letters
- Vol. 259 (1) , 24-26
- https://doi.org/10.1016/0014-5793(89)81485-1
Abstract
Purple membranes oriented and immobilized in gel show charge transfer at pH 0.55 if the pH is set by HCl. Current appears as laser flash driven transient and also as continuous current by quasi‐continuous illumination. If the pH value 0.55 is set by H2SO4 continuous current is not observed. The results suggest that bacteriorhodopsin may pump chloride ions at low pH.Keywords
This publication has 13 references indexed in Scilit:
- Two pumps, one principle: light-driven ion transport in halobacteriaTrends in Biochemical Sciences, 1989
- Chromophore/protein and chromophore/anion interactions in halorhodopsinBiophysical Journal, 1988
- Deprotonation of the Schiff base of bacteriorhodopsin is obligate in light-induced proton pumpingBiochemistry, 1987
- The rhodopsin-like pigments of halobacteria: light-energy and signal transducers in an archaebacteriumTrends in Biochemical Sciences, 1985
- Time-resolved photoelectric and absorption signals from oriented purple membranes immobilized in gelJournal of Biochemical and Biophysical Methods, 1985
- THE FIVE RETINAL‐PROTEIN PIGMENTS OF HALOBACTERIA: BACTERIORHODOPSIN, HALORHODOPSIN, P 565, P 370, AND SLOW‐CYCLING RHODOPSINPhotochemistry and Photobiology, 1983
- Displacement current on purple membrane fragments oriented in a suspensionBiophysical Chemistry, 1983
- Chromophore equilibria in bacteriorhodopsinBiophysical Journal, 1979
- Effect of acid pH on the absorption spectra and photoreactions of bacteriorhodopsinBiochemistry, 1979
- Time resolution of the intermediate steps in the bacteriorhodopsin‐linked electrogenesisFEBS Letters, 1978