Picosecond events in the photochemical cycle of the light-driven chloride-pump halorhodopsin. |
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| Authors: | H J Polland M A Franz W Zinth W Kaiser P Hegemann D Oesterhelt |
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| 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. |
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