title: Ultraviolet and visible absorption spectra of the purple membrane protein and the photocycle intermediates.
mesh_terms: D001436:Bacteriorhodopsins / Q000378:metabolism; D002338:Carotenoids / Q000378:metabolism; D002462:Cell Membrane / Q000378:metabolism; D006217:Halobacterium / Q000378:metabolism; D008027:Light; D010777:Photochemistry; D011487:Protein Conformation; D011522:Protons; D012172:Retinaldehyde; D012542:Scattering, Radiation; D013053:Spectrophotometry; D013056:Spectrophotometry, Ultraviolet
chemical_list: D011522:Protons; D002338:Carotenoids; D001436:Bacteriorhodopsins; D012172:Retinaldehyde