FRET-Seq: a High-Throughput FRET-Based Screening Platform to Improve FRET Biosensors in Mammalian Cells

Genetically-encoded biosensors based on FRET have been widely used to dynamically monitor the activity of protein tyrosine kinases (PTKs) in living cell with high spatiotemporal resolution. However, the limitation in sensitivity, specificity, and dynamic range of FRET biosensors have hindered their broader applications. Here, we introduced a systematic platform, FRET-Seq, which integrates high-throughput FRET sorting and next-generation sequencing, to identify FRET biosensors with better performance from large-scale libraries directly in mammalian cells.