An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
1 1Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi China.
2 2School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210 China.
3 3Institute of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, CAS Key Laboratory of Primate Neurobiology, State Key Laboratory of Neuroscience, Chinese Academy of Sciences, Shanghai, 200031 China.
4 4University of Chinese Academy of Sciences, Beijing, 100049 China.
5 5CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, 200031 China.
1 1Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100 Shaanxi China.
2 2School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210 China.
3 3Institute of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, CAS Key Laboratory of Primate Neurobiology, State Key Laboratory of Neuroscience, Chinese Academy of Sciences, Shanghai, 200031 China.
4 4University of Chinese Academy of Sciences, Beijing, 100049 China.
5 5CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, 200031 China.
Conflict of interestThe authors declare that they have no conflict of interest.
Figures
Fig. 1. PE3-mediated efficient base transversion in…
Fig. 1. PE3-mediated efficient base transversion in vitro and in vivo.
a Schematic diagram of…
Fig. 1. PE3-mediated efficient base transversion in vitro and in vivo.
a Schematic diagram of target site at the HOXD13 locus. The PAM sequences and the spacer sequences of pegRNA are underlined in red and black, respectively; the nucleotide substitutions are marked in blue. The corresponding targeted codons are shown on the right of sequence. b Editing efficiency and indel generation by PE3 at the +6 position of HOXD13 using pegRNAs containing 15-nt RT templates and PBS sequences ranging from 10 to 17 nt in N2a cells. Indels (gray column) are plotted for comparison. c PE3-mediated base transversion editing efficiency and indels at the +6 position of HOXD13 in mouse N2a cells as a function of RT template length. Indels (gray line) are plotted for comparison. The sequence below the graph shows the last nucleotide template for synthesis by the pegRNA. d Sanger sequencing chromatograms at the HOXD13 site in N2a cells. The PAM sequence and spacer sequence of pegRNA are underlined in red and black, respectively. Asterisks indicate the desired editing. e Frequencies of nucleotide conversions in mouse embryos. PCR amplicons from the target regions in Hoxd13 were analyzed by targeted deep sequencing. Each dot indicates one individual embryo; embryo id was marked for the embryos with top five nucleotide conversion frequency. f Frequencies of nucleotide conversions in mice. PCR amplicons from the target regions in Hoxd13 were analyzed by targeted deep sequencing. Each dot indicates one individual mouse. g Genotypes of the two Hoxd13 sites in mice by targeted deep sequencing. Alignment of sequences derived from deep sequencing in ten mutant mice. The target site is highlighted in blue. pegRNA spacer sequence are underlined in black. PAM sequences are underlined and marked in red.
Komor AC, Kim YB, Packer MS, Zuris JA, Liu DR. Programmable editing of a target base in genomic DNA without double-stranded DNA cleavage. Nature. 2016;533:420–424. doi: 10.1038/nature17946.
-
DOI
-
PMC
-
PubMed
Gaudelli NM, et al. Programmable base editing of A*T to G*C in genomic DNA without DNA cleavage. Nature. 2017;551:464–471. doi: 10.1038/nature24644.
-
DOI
-
PMC
-
PubMed
Zeng Y, et al. Correction of the Marfan syndrome pathogenic FBN1 mutation by base editing in human cells and heterozygous embryos. Mol. Ther. 2018;26:2631–2637. doi: 10.1016/j.ymthe.2018.08.007.
-
DOI
-
PMC
-
PubMed
Osborn MJ, et al. Base editor correction of COL7A1 in recessive dystrophic epidermolysis bullosa patient-derived fibroblasts and iPSCs. J. Investig Dermatol. 2020;140:338–347. doi: 10.1016/j.jid.2019.07.701.
-
DOI
-
PMC
-
PubMed
Anzalone AV, et al. Search-and-replace genome editing without double-strand breaks or donor DNA. Nature. 2019;576:149–157. doi: 10.1038/s41586-019-1711-4.
-
DOI
-
PMC
-
PubMed