On the Photocycle of 4-Ketobacteriorhodopsin

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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

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The artificial pigment 4-ketobacteriorhodopsin is an interesting analog of bacteriorhodopsin. Arguments concerning the scheme of the photocycle of 4-ketobacteriorhodopsin are discussed.

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KEY WORDS: chromophore, retinal analogs, 13-cis-cycle, M-intermediate, M₄₁₉, K₅₇₀

DOI: 10.1134/S0006297912090076

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