title: Bacteriorhodopsin: fourier transform infrared methods for studies of protonation of carboxyl groups.
mesh_terms: D000596:Amino Acids / Q000378:metabolism; D001436:Bacteriorhodopsins / Q000378:metabolism*; D002247:Carbon Isotopes; D002338:Carotenoids / Q000378:metabolism*; D002952:Citric Acid Cycle; D005583:Fourier Analysis; D006217:Halobacterium / Q000378:metabolism; D007202:Indicators and Reagents; D011522:Protons; D013055:Spectrophotometry, Infrared / Q000379:methods
chemical_list: D000596:Amino Acids; D002247:Carbon Isotopes; D007202:Indicators and Reagents; D011522:Protons; D002338:Carotenoids; D001436:Bacteriorhodopsins