ArticleNature communications2025
Rhodopsin charge diffusion computations disclose contrasting color-tuning mechanisms.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Our understanding of the rules controlling the spectral tuning of light absorbing proteins is limited. When looking at rhodopsins as canonical examples, the fact that the cavity incorporates the chromophore counterion in different positions and polar residues with different orientations, leads to patterns of electrostatic potential whose effect is not obvious. In this work we use a model of the optogenetic reporter Arch-3 capable to describe the effect of the diffusion of its counterion charge on both excitation energies (
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