Photobiology Rhodopsin

Filipek S, Krzysko KA, Fotiadis D, Liang Y, Saperstein DA, Engel A, Palczewski K (2004) A concept for G protein activation by G protein-coupled receptor dimers die transducin/rhodopsin interface. Photochemical Photobiological Sciences 3(6) 628—638... 

Photochemical cis-trans isomerization is a major area of interest in modem photochemical research and is also studied as part of organic photochemistry. Photochemical cis-trans isomerization has a major role in many photobiological phenomena, such as vision (rhodopsin) [1], ATP synthesis (bacteriorhodopsin) [2], phototaxis (Chlamydomonas) [3], and other allied processes. It has practical application in industry [4-6], i.e., vitamin A and D processes. Furthermore, it is a likely candidate for many optoelectrical and optomechanical switching and storage devices [7]. In this chapter, mainly various aspects of cis-trans isomerization originating from the singlet excited state will be discussed. 

R.R. Bilge, B.M. Pierce, The nature of the primary photochemictil events in bacteri-orhodopsin and rhodopsin, in Photochemistry and Photobiology, ed. by A.H. Zewail (Harwood, Chur, 1983), p. 841... 

Action spectroscopy is a general approach toward identifying the receptor pigment for a particular photobiological response or effect. The early identification of major chromophores, such as rhodopsin and chlorophyll, depended on comparison of the action spectra for vision and photosynthesis, respectively, with the absorption spectra of candidate pigments. 

Jung, K.-H., and Spudich, J., Microbial rhodopsins transport and sensory proteins throughout the three domains of Hfe, in CRC Handbook of Organic Photochemistry and Photobiology, Horspool, W.M., and Lenci, F., Eds., CRC Press, Inc., Boca Raton, 2002, chap. 13. 

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