title: Crystallographic structure of xanthorhodopsin, the light-driven proton pump with a dual chromophore.
mesh_terms: D001426:Bacterial Proteins / Q000737:chemistry*; D002338:Carotenoids / Q000737:chemistry; D018360:Crystallography, X-Ray; D004735:Energy Transfer; D005051:Eubacterium / Q000737:chemistry*; D008027:Light; D011487:Protein Conformation; D011522:Protons; D012172:Retinaldehyde / Q000737:chemistry; D025604:Rhodopsins, Microbial / Q000737:chemistry*
chemical_list: D001426:Bacterial Proteins; D011522:Protons; D025604:Rhodopsins, Microbial; C519152:xanthorhodopsin, Salinibacter; D002338:Carotenoids; D012172:Retinaldehyde