Generation of a more efficient prime editor 2 by addition of the Rad51 DNA-binding domain

Myungjae Song, Jung Min Lim, Seonwoo Min, Jeong Seok Oh, Dong Young Kim, Jae Sung Woo, Hiroshi Nishimasu, Sung Rae Cho, Sungroh Yoon, Hyongbum Henry Kim

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)


Although prime editing is a promising genome editing method, the efficiency of prime editor 2 (PE2) is often insufficient. Here we generate a more efficient variant of PE2, named hyPE2, by adding the Rad51 DNA-binding domain. When tested at endogenous sites, hyPE2 shows a median of 1.5- or 1.4- fold (range, 0.99- to 2.6-fold) higher efficiencies than PE2; furthermore, at sites where PE2-induced prime editing is very inefficient (efficiency < 1%), hyPE2 enables prime editing with efficiencies ranging from 1.1% to 2.9% at up to 34% of target sequences, potentially facilitating prime editing applications.

Original languageEnglish
Article number5617
JournalNature communications
Issue number1
Publication statusPublished - 2021 Dec 1

Bibliographical note

Publisher Copyright:
© 2021, The Author(s).

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • General Biochemistry,Genetics and Molecular Biology
  • General
  • General Physics and Astronomy


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