|ZFIN ID: ZDB-PUB-200403-35|
Spatiotemporal Control of CRISPR/Cas9 Function in Cells and Zebrafish using Light-Activated Guide RNA
Zhou, W., Brown, W., Bardhan, A., Delaney, M., Ilk, A., Rauen, R., Kahn, S., Tsang, M., Deiters, A.
|Source:||Angewandte Chemie (International ed. in English) 59(23): 8998-9003 (Journal)|
|Registered Authors:||Tsang, Michael|
|Keywords:||CRISPR/Cas9, caged compounds, gene editing, optical control, zebrafish|
|PubMed:||32160370 Full text @ Angew. Chem. Int. Ed. Engl.|
Zhou, W., Brown, W., Bardhan, A., Delaney, M., Ilk, A., Rauen, R., Kahn, S., Tsang, M., Deiters, A. (2020) Spatiotemporal Control of CRISPR/Cas9 Function in Cells and Zebrafish using Light-Activated Guide RNA. Angewandte Chemie (International ed. in English). 59(23):8998-9003.
ABSTRACTWe developed a new method for conditional regulation of CRISPR/Cas9 activity in mammalian cells and zebrafish embryos via photochemically activated, caged guide RNAs. Caged gRNAs are generated by substituting four nucleobases evenly distributed throughout the 5'-protospacer region with caged nucleobases during synthesis. Caging confers complete suppression of gRNA:dsDNA- target hybridization and rapid restoration of CRISPR/Cas9 function upon optical activation. This tool offers simplicity and complete programmability in design, high spatiotemporal specificity in cells and zebrafish embryos, excellent off to on switching, and stability by preserving the ability to form Cas9:gRNA ribonucleoprotein complexes. Caged gRNAs are novel tools for conditional control of gene editing, thereby enabling the investigation of spatiotemporally complex physiological events by obtaining a better understanding of dynamic gene regulation.