title: Sensory and energy transduction. Light-activated retinal proteins.
mesh_terms: D000818:Animals; D001436:Bacteriorhodopsins; D002338:Carotenoids; D006801:Humans; D012168:Retinal Pigments / Q000235:genetics; D012243:Rhodopsin / Q000235:genetics; D014785:Vision, Ocular
chemical_list: D012168:Retinal Pigments; D002338:Carotenoids; D001436:Bacteriorhodopsins; D012243:Rhodopsin