Primary photophysical and photochemical processes in visual excitation |
| |
| Authors: | Lewis Aaron |
| |
| Affiliation: | (1) School of Applied and Engineering Physics, Cornell University, 14853 Ithaca, New York, USA |
| |
| Abstract: | The color of visual pigments is experimentally shown to be controlled by excited state effects. These effects which define the primary absorption of light by rhodopsin are considered together with results obtained from emission and picosecond spectroscopy. In addition, the molecular changes induced in rhodopsin when a photon is absorbed are analyzed using resonance Raman spectroscopy. The molecular changes observed are compared in bacterial and photoreceptor rhodopsins. This comparison yields a unique explanation for the biological role of the cis-trans isomerization in visual transduction.Presented at the EMBO-Workshop on Transduction Mechanism of Photoreceptors, Jülich, Germany, October 4–8, 1976 |
| |
| Keywords: | Visual pigment color Energy transduction M412 trans-biological role Cis-trans isomerization Resonance Raman Emission spectroscopy |
| 本文献已被 SpringerLink 等数据库收录！ |
|
