title: The two faces of the purple membrane. II. Differences in surface charge properties revealed by ferritin binding.
mesh_terms: D001436:Bacteriorhodopsins / Q000378:metabolism*; D002338:Carotenoids / Q000378:metabolism*; D005293:Ferritins / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D008854:Microscopy, Electron; D009994:Osmolar Concentration; D011485:Protein Binding; D013499:Surface Properties
chemical_list: D002338:Carotenoids; D001436:Bacteriorhodopsins; D005293:Ferritins