Cited by 4,507CRISPR and Genetic EngineeringAdvanced biosensing and bioanalysis techniquesRNA regulation and disease

CRISPR-Cas12a target binding unleashes indiscriminate single-stranded DNase activity

Open access
Chen, Janice S., Ma, Enbo, Harrington, Lucas B., Da Costa, Maria, Tian, Xinran, Palefsky, Joel M., Doudna, Jennifer A.·2018·Science

Published version of a preprint

Abstract

CRISPR-Cas12a (Cpf1) proteins are RNA-guided enzymes that bind and cut DNA as components of bacterial adaptive immune systems. Like CRISPR-Cas9, Cas12a has been harnessed for genome editing on the basis of its ability to generate targeted, double-stranded DNA breaks. Here we show that RNA-guided DNA binding unleashes indiscriminate single-stranded DNA (ssDNA) cleavage activity by Cas12a that completely degrades ssDNA molecules. We find that target-activated, nonspecific single-stranded deoxyribonuclease (ssDNase) cleavage is also a property of other type V CRISPR-Cas12 enzymes. By combining Cas12a ssDNase activation with isothermal amplification, we create a method termed DNA endonuclease-targeted CRISPR trans reporter (DETECTR), which achieves attomolar sensitivity for DNA detection. DETECTR enables rapid and specific detection of human papillomavirus in patient samples, thereby providing a simple platform for molecular diagnostics.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1126/science.aar6245

Cites

48 of 48 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Chen, J. S., Ma, E., Harrington, L. B., Da Costa, M., Tian, X., Palefsky, J. M., & Doudna, J. A.
Affiliations
  • University of California, Berkeley (US)
  • Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA.
  • University of California, San Francisco (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
  • Chen, Janice S.
  • Ma, Enbo
  • Harrington, Lucas B.
  • Doudna, Jennifer A.
Venue
Science
Published
2018-04-27
Volume
360
Issue
6387
Pages
436-439
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2787024379
Cited by
4,507
References
48
Citations by year
2026: 759 · 2025: 816 · 2024: 736 · 2023: 643 · 2022: 624 · 2021: 452 · 2020: 271 · 2019: 135 · 2018: 67
FWCI
82.27
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
National Science Foundation (MCB-1244557)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Advanced biosensing and bioanalysis techniques
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA regulation and disease
Keywords
CRISPR/Cas12a, single-stranded DNA cleavage, isothermal amplification, DETECTR, DNA detection, HPV testing, molecular diagnosis, genome editing
MeSH terms
Clostridiales, Eubacteriales, Bacterial Proteins, DNA, Single-Stranded, Endodeoxyribonucleases, Endonucleases, Kinetics, Substrate Specificity, DNA Cleavage, CRISPR-Cas Systems, CRISPR-Associated Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review