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Bacteriorhodopsin (bR) is a red-colored protein found in cell membranes of the organism Halobacterium salinarum, being considered as a light activated proton pump that transports protons across the plasma membrane. Because bacteriorhodopsin is one of the simplest ATP-producing systems known in biology, it has been the subject of intensive investigations. The bR photo-intermediates were seen in the mechanistic model considering that this protein links light energy to the translocation of protons across the bacteria...