title: The topography of the purple membrane.
mesh_terms: D000595:Amino Acid Sequence; D001436:Bacteriorhodopsins; D002338:Carotenoids; D002462:Cell Membrane / Q000648:ultrastructure; D006217:Halobacterium / Q000648:ultrastructure; D011487:Protein Conformation
chemical_list: D002338:Carotenoids; D001436:Bacteriorhodopsins