title: Picosecond events in the photochemical cycle of the light-driven chloride-pump halorhodopsin.
abstract: The early events in halorhodopsin after light excitation are studied with picosecond time resolution. Absorption and fluorescence measurements show that the electronically excited state of the incorporated retinal has a lifetime of 5 ps. Within that time a red-shifted photoproduct is formed that remains stable for at least 2 ns.
mesh_terms: D001436:Bacteriorhodopsins; D002338:Carotenoids; D002712:Chlorides; D025602:Halorhodopsins; D008956:Models, Chemical; D010777:Photochemistry; D013050:Spectrometry, Fluorescence; D013997:Time Factors
chemical_list: D002712:Chlorides; D025602:Halorhodopsins; D002338:Carotenoids; D001436:Bacteriorhodopsins