Here, we present a protocol for the in vitro selection of engineered transcriptional repressors (ETRs) with high, long-term, stable, on-target silencing efficiency and low genome-wide, off-target activity. This workflow allows for reducing an initial, complex repertoire of candidate ETRs to a short list, suitable for further evaluation in therapeutically relevant settings.
Migliara, A., Cappelluti, M. A., Giannese, F., Valsoni, S., Coglot, A., Merelli, I., Cittaro, D., Lombardo, A. In Vitro Selection of Engineered Transcriptional Repressors for Targeted Epigenetic Silencing. J. Vis. Exp. (195), e64403, doi:10.3791/64403 (2023).