Addition of the T5 exonuclease increases the prime editing efficiency in plants.

Abstract excerpt

Prime editing (PE) is a versatile genome editing tool without the need for double-stranded DNA breaks or donor DNA templates, but is limited by low editing efficiency. We previously fused the M-MLV reverse transcriptase to the Cas9 nickase, generating the PE2 (v1) system, but the editing efficiency of this system is still low. Here we develop different versions of PE2 by adding the 5'-to-3' exonuclease at...

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