Cited by 5,016CRISPR and Genetic EngineeringBacterial Genetics and BiotechnologyRNA Interference and Gene Delivery

Repurposing CRISPR as an RNA-Guided Platform for Sequence-Specific Control of Gene Expression

Open access
Qi, Lei S., Larson, Matthew H., Gilbert, Luke A., Doudna, Jennifer A., Weissman, Jonathan S., Arkin, Adam P., Lim, Wendell A.·2013·Cell

Abstract

Targeted gene regulation on a genome-wide scale is a powerful strategy for interrogating, perturbing, and engineering cellular systems. Here, we develop a method for controlling gene expression based on Cas9, an RNA-guided DNA endonuclease from a type II CRISPR system. We show that a catalytically dead Cas9 lacking endonuclease activity, when coexpressed with a guide RNA, generates a DNA recognition complex that can specifically interfere with transcriptional elongation, RNA polymerase binding, or transcription factor binding. This system, which we call CRISPR interference (CRISPRi), can efficiently repress expression of targeted genes in Escherichia coli, with no detectable off-target effects. CRISPRi can be used to repress multiple target genes simultaneously, and its effects are reversible. We also show evidence that the system can be adapted for gene repression in mammalian cells. This RNA-guided DNA recognition platform provides a simple approach for selectively perturbing gene expression on a genome-wide scale.

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Crossref · 10.1016/j.cell.2013.02.022

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  • CRISPR interference (CRISPRi) and CRISPR activation (CRISPRa) employ catalytically deactivated forms of Cas9 (dCas9) fused to transcriptional repressors or activators.

    “CRISPR interference (CRISPRi) and CRISPR activation (CRISPRa) employ catalytically deactivated forms of Cas9 (dCas9) that are fused to transcriptional repressors or activators 29,101 .”

    From The promise and challenge of therapeutic genome editing (2020) · cites this paper as [29]

    The Summary and the section ‘CRISPRi Efficiently and Selectively Represses Transcription of Target Genes’ describe CRISPRi using catalytically inactive dCas9 and guide RNA to repress transcription. The section ‘CRISPRi as a Platform for Engineering Transcriptional Regulatory Networks’ discusses coupling dCas9 to regulatory domains, including for activation, as a possibility—not as a fusion used in the reported system. Page numbers are not supplied in our copy. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • The use of CRISPR/Cas9 system enables regulation of gene expression and makes epigenetic alterations without introducing DNA double-strand breaks.

    “The use of CRISPR/Cas9 system enables regulation of gene expression and make epigenetic alterations without introducing DNA double-strand breaks.428”

    From Epigenetic regulation in major depression and other stress-related disorders: molecular mechanisms, clinical relevance and therapeutic potential (2023) · cites this paper as [428]

    The Introduction and Summary describe CRISPRi using catalytically inactive Cas9 to regulate gene expression without DNA cleavage. In “CRISPRi as a Platform for Engineering Transcriptional Regulatory Networks” (page unavailable), chromatin modification is presented only as a possible future use of dCas9 coupled to regulatory domains; the paper does not report making epigenetic alterations. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • CRISPRi and CRISPRa technologies utilize catalytically inactive Cas9 (dCas9) fused to either a transcriptional repressor (e.g., KRAB) or a transcriptional activator (e.g., VPR).

    “For example, CRISPRi (interference)23–25 and CRISPRa (activation)26–30 technologies utilize catalytically inactive Cas9 (dCas9) fused to either a transcriptional repressor (e.g., KRAB, Krüppel associated box) or a transcriptional activator (e.g., VPR, VP64-p65-Rta).”

    From Large-scale CRISPR screening in primary human 3D gastric organoids enables comprehensive dissection of gene-drug interactions (2025) · cites this paper as [25]

    The Introduction and the section on CRISPRi silencing describe gene repression using catalytically inactive Cas9 and a guide RNA. The section on engineering transcriptional regulatory networks discusses coupling dCas9 to regulatory domains for activation as a possibility, not as a demonstrated system. Our copy does not describe the claimed KRAB or VPR fusions. (LLM, conf=0.89)

    Experimental — accuracy not yet measured
  • Alternatives to DNA cleavage-induced editing include base editing, prime editing, and CRISPRi/CRISPRa.

    “Alternatives to DNA cleavage-induced editing include using CRISPR-Cas9 for direct chemical sequence alteration (base editing) 25,26 , providing RNA templates for gene alteration (prime editing) 27,28 , and for transcriptional control (CRISPR interference, CRISPRi; CRISPR activation, CRISPRa) 29,30 (Fig. 3).”

    From The promise and challenge of therapeutic genome editing (2020) · cites this paper as [29]

  • dCas9 can be repurposed as a site-specific DNA-binding domain transporting various functional domains to the target locus.

    “dCas9 can be repurposed as a site-specific DNA-binding domain transporting various functional domains to the target locus”

    From CRISPR-Cas9: a new and promising player in gene therapy (2015) · cites this paper as [17]

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Authors
Qi, L. S., Larson, M. H., Gilbert, L. A., Doudna, J. A., Weissman, J. S., Arkin, A. P., & Lim, W. A.
Affiliations
QB3 (US)
Corresponding author
Qi, Lei S.
Venue
Cell
Publisher
Elsevier BV
Published
2013-02
Volume
152
Issue
5
Pages
1173-1183
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2160051211
Cited by
5,016
References
30
Citations by year
2026: 291 · 2025: 375 · 2024: 418 · 2023: 403 · 2022: 497 · 2021: 465 · 2020: 499 · 2019: 444 · 2018: 417 · 2017: 382 · 2016: 315 · 2015: 229 · 2014: 189 · 2013: 87
FWCI
121.73
Type
journal article
Language
en
Update notices
erratum (2021-02-04)
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Cancer Institute (U01CA168370)
  • National Institute of General Medical Sciences (P50GM081879, F32GM100611)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
Keywords
CRISPR interference, Cas9, transcriptional repression, dCas9, guide RNA, RNA polymerase binding, transcription factor binding, Escherichia coli, mammalian cells, off-target effects
MeSH terms
Endodeoxyribonucleases, Escherichia coli, Streptococcus pyogenes, Gene Expression, RNA Interference, Gene Knockdown Techniques, RNA, Small Untranslated, Transcription Initiation, Genetic, Transcription Elongation, Genetic

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