Cited by 5,437CRISPR and Genetic EngineeringRNA regulation and diseaseDNA Repair Mechanisms

The DOI matches its Crossref record; 35 of the 36 references it cites were found in a registry or an index.

Programmable editing of a target base in genomic DNA without double-stranded DNA cleavage

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Abstract

Current genome-editing technologies introduce double-stranded (ds) DNA breaks at a target locus as the first step to gene correction. Although most genetic diseases arise from point mutations, current approaches to point mutation correction are inefficient and typically induce an abundance of random insertions and deletions (indels) at the target locus resulting from the cellular response to dsDNA breaks. Here we report the development of 'base editing', a new approach to genome editing that enables the direct, irreversible conversion of one target DNA base into another in a programmable manner, without requiring dsDNA backbone cleavage or a donor template. We engineered fusions of CRISPR/Cas9 and a cytidine deaminase enzyme that retain the ability to be programmed with a guide RNA, do not induce dsDNA breaks, and mediate the direct conversion of cytidine to uridine, thereby effecting a C→T (or G→A) substitution. The resulting 'base editors' convert cytidines within a window of approximately five nucleotides, and can efficiently correct a variety of point mutations relevant to human disease. In four transformed human and murine cell lines, second- and third-generation base editors that fuse uracil glycosylase inhibitor, and that use a Cas9 nickase targeting the non-edited strand, manipulate the cellular DNA repair response to favour desired base-editing outcomes, resulting in permanent correction of ~15-75% of total cellular DNA with minimal (typically ≤1%) indel formation. Base editing expands the scope and efficiency of genome editing of point mutations.

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Metadata

Authors
Komor, A. C., Kim, Y. B., Packer, M. S., Zuris, J. A., & Liu, D. R.
Affiliations
Howard Hughes Medical Institute (US)
Corresponding author
Liu, David R.
Venue
Nature
Published
2016-04-20
Volume
533
Issue
7603
Pages
420-424
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2336828812
Cited by
5,437
References
36
Citations by year
2026: 564 · 2025: 660 · 2024: 664 · 2023: 719 · 2022: 681 · 2021: 614 · 2020: 540 · 2019: 408 · 2018: 338 · 2017: 182 · 2016: 61
FWCI
171.45
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Institute of General Medical Sciences (T32GM008313, F32 GM 106601-2, F32GM106601, F32 GM 112366-2, R01GM065400, F32GM112366)
  • National Institute of Biomedical Imaging and Bioengineering (R01EB022376)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA regulation and disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
Keywords
base editing, CRISPR/Cas9, cytidine deaminase, point mutation correction, Cas9 nickase, DNA repair, guide RNA, genome editing, human disease models
MeSH terms
APOBEC-1 Deaminase, RNA, Guide, CRISPR-Cas Systems, Animals, Base Sequence, Cell Line, Cytidine, Cytidine Deaminase, Deoxyribonuclease I, DNA, DNA Repair, Genetic Engineering, Humans, Templates, Genetic, Uridine, Genes, p53, Genome, Point Mutation, Mice, Uracil-DNA Glycosidase, Apolipoprotein E4, DNA Cleavage, INDEL Mutation, Clustered Regularly Interspaced Short Palindromic Repeats, CRISPR-Cas Systems, CRISPR-Associated Proteins

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