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Creators/Authors contains: "Huix-Rotllant, Miquel"

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  1. ; ; ; ; ; ; ; ; ; ; et al ( , Nature Communications)
    Abstract The lack of a theory capable of connecting the amino acid sequence of a light-absorbing protein with its fluorescence brightness is hampering the development of tools for understanding neuronal communications. Here we demonstrate that a theory can be established by constructing quantum chemical models of a set of Archaerhodopsin reporters in their electronically excited state. We found that the experimentally observed increase in fluorescence quantum yield is proportional to the computed decrease in energy difference between the fluorescent state and a nearby photoisomerization channel leading to an exotic diradical of the protein chromophore. This finding will ultimately support the development of technologies for searching novel fluorescent rhodopsin variants and unveil electrostatic changes that make light emission brighter and brighter. 
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  2. ; ; ; ; ; ; ; ; ; ; et al ( , Journal of Chemical Theory and Computation)
    Free, publicly-accessible full text available May 22, 2024