Communications Biology (Jul 2021)

Rational engineering of ratiometric calcium sensors with bright green and red fluorescent proteins

  • Diming Zhang,
  • Emily Redington,
  • Yiyang Gong

DOI
https://doi.org/10.1038/s42003-021-02452-z
Journal volume & issue
Vol. 4, no. 1
pp. 1 – 12

Abstract

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Zhang, Redington & Gong develop FRET-based ratiometric calcium sensors with pairs of green and red fluorescent proteins. Their best performers, Twitch-GR and Twitch-NR inherit the superior photophysical properties of their constituent fluorescent proteins, enabling them to outperform existing ratiometric calcium sensors in brightness, photobleaching, and signal fidelity metrics.