FRET and BRET-Based Biosensors in Live Cell Compound Screens

  • Katie Herbst Robinson
  • Jessica R. Yang
  • Jin Zhang
Part of the Methods in Molecular Biology book series (MIMB, volume 1071)


Live cell compound screening with genetically encoded fluorescence or bioluminescence-based biosensors offers a potentially powerful approach to identify novel regulators of a signaling event of interest. In particular, compound screening in living cells has the added benefit that the entire signaling network remains intact, and thus the screen is not just against a single molecule of interest but against any molecule within the signaling network that may modulate the distinct signaling event reported by the biosensor in use. Furthermore, only molecules that are cell permeable or act at cell surface receptors will be identified as “hits,” thus reducing further optimization of the compound in terms of cell penetration. Here we discuss a detailed protocol for using genetically encoded biosensors in living cells in a 96-well format for the execution of high throughput compound screens and the identification of small molecules which modulate a signaling event of interest.

Key words

Live cell compound screening Genetically encoded biosensor Cell signaling Fluorescence resonance energy transfer Bioluminescence 


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Copyright information

© Springer Science+Business Media, LLC 2014

Authors and Affiliations

  • Katie Herbst Robinson
    • 1
  • Jessica R. Yang
    • 1
  • Jin Zhang
    • 1
  1. 1.Department of Pharmacology and Molecular SciencesThe Johns Hopkins University School of MedicineBaltimoreUSA

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