Enhancement of a prime editing system via optimal recruitment of the pioneer transcription factor P65

Ronghao Chen, Yu Cao, Yajing Liu, Dongdong Zhao, Ju Li, Zhihui Cheng (), Changhao Bi () and Xueli Zhang ()
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Ronghao Chen: Nankai University
Yu Cao: Nankai University
Yajing Liu: Nankai University
Dongdong Zhao: Chinese Academy of Sciences
Ju Li: Tianjin Normal University
Zhihui Cheng: Nankai University
Changhao Bi: Chinese Academy of Sciences
Xueli Zhang: Chinese Academy of Sciences

Nature Communications, 2023, vol. 14, issue 1, 1-8

Abstract: Abstract Prime editing is a versatile gene editing tool that enables precise sequence changes of all types in the genome, but its application is rather limited by the editing efficiency. Here, we first apply the Suntag system to recruit the transcription factor P65 and enhance the desired editing outcomes in the prime editing system. Next, MS2 hairpins are used to recruit MS2-fused P65 and confirmed that the recruitment of the P65 protein could effectively improve the prime editing efficiency in both the PE3 and PE5 systems. Moreover, this suggests the increased editing efficiency is most likely associated with the induction of chromatin accessibility change by P65. In conclusion, we apply different systems to recruit P65 and enhance the prime editing efficiency of various PE systems. Furthermore, our work provides a variety of methods to work as protein scaffolds for screening target factors and thus supports further optimization of prime editing systems.

Date: 2023
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DOI: 10.1038/s41467-023-35919-0

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