NEW YORK (GenomeWeb) – Broad Institute researchers David Liu and Feng Zhang have both developed new CRISPR-based systems, one for editing point mutations in the genome and the other for editing RNA, they revealed today in separate studies.

Liu's work, published in Nature, uses a guide RNA and catalytically impaired CRISPR-Cas9 to convert A-T base pairs to G-C base pairs in the genome, enabling the editing of single point mutations without the induction of double-stranded DNA breaks (DSBs).

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