Article
Direct Observation of the Protonation States in the Mutant Green Fluorescent Protein.
The journal of physical chemistry letters - 16 Jan 2020
Shibazaki Chie, Shimizu Rumi, Kagotani Yuji, Ostermann Andreas, Schrader Tobias E, Adachi Motoyasu
Abstract excerpt
Neutron crystallography has been used to elucidate the protonation states for the enhanced green fluorescent protein, which has revolutionized imaging technologies. The structure has a deprotonated hydroxyl group in the fluorescent chromophore. Also, the protonation states of His148 and Thr203, as well as the orientation of a critical water molecule in direct contact with the chromophore, could be determined. The...
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