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On the Photocycle of 4-Ketobacteriorhodopsin

L. V. Khitrina

Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991 Moscow, Russia; fax: (495) 939-3181; E-mail: khitr@yandex.ru

Received March 14, 2012
The artificial pigment 4-ketobacteriorhodopsin is an interesting analog of bacteriorhodopsin. Arguments concerning the scheme of the photocycle of 4-ketobacteriorhodopsin are discussed.
KEY WORDS: chromophore, retinal analogs, 13-cis-cycle, M-intermediate, M419, K570

DOI: 10.1134/S0006297912090076