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The light-induced isomerization of the retinal from 11-cis to all-trans triggers changes in the conformation of visual rhodopsins that lead to the formation of the activated state, which is ready to interact with the G protein. To begin to understand how changes in the structure and dynamics of the retinal are transmitted to the protein, we performed molecular dynamics simulations of squid rhodopsin...
Understanding the mechanism of G-protein coupled receptors action is of major interest for drug design. The visual rhodopsin is the prototype structure for the family A of G-protein coupled receptors. Upon photoisomerization of the covalently bound retinal chromophore, visual rhodopsins undergo a large-scale conformational change that prepares the receptor for a productive interaction with the G-protein...
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