Compact RNA editors with small Cas13 proteins.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 34462587.
- Also identified by DOI 10.1038/s41587-021-01030-2 and PMC identifier 8929162.
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Abstract
CRISPR-Cas13 systems have been developed for precise RNA editing, and can potentially be used therapeutically when temporary changes are desirable or when DNA editing is challenging. We have identified and characterized an ultrasmall family of Cas13b proteins-Cas13bt-that can mediate mammalian transcript knockdown. We have engineered compact variants of REPAIR and RESCUE RNA editors by functionalizing Cas13bt with adenosine and cytosine deaminase domains, and demonstrated packaging of the editors within a single adeno-associated virus.
Medical subject headings
- CRISPR-Cas Systems
- RNA