Spatiotemporal Control of CRISPR/Cas9 Function in Cells and Zebrafish using Light-Activated Guide RNA.
Angew Chem Int Ed Engl
; 59(23): 8998-9003, 2020 06 02.
Article
em En
| MEDLINE
| ID: mdl-32160370
ABSTRACT
We developed a new method for the conditional regulation of CRISPR/Cas9 activity in mammalian cells and zebrafish embryos using photochemically activated, caged guide RNAs (gRNAs). 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 gRNAdsDNA-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 Cas9gRNA ribonucleoprotein complexes. Caged gRNAs are novel tools for the conditional control of gene editing, thereby enabling the investigation of spatiotemporally complex physiological events by obtaining a better understanding of dynamic gene regulation.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Peixe-Zebra
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RNA Guia de Cinetoplastídeos
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Sistemas CRISPR-Cas
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Edição de Genes
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article