SCHEDULED MAINTENANCE
We report a photochromic and thermochromic fluorescent protein that exhibits a reversible and striking visible colour switch between yellow and red. The protein has been characterized in terms of its light, temperature and pH-dependence. Based on a mutational analysis we propose that the colour switch mechanism involves chromophore protonation coupled with E–Z isomerization.
Y. Shen, M. D. Wiens and R. E. Campbell, RSC Adv., 2014, 4, 56762 DOI: 10.1039/C4RA10107C
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