Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 511

The DOI matches its Crossref record; 39 of the 39 references it cites were found in a registry or an index.

CRISPR Immunity Relies on the Consecutive Binding and Degradation of Negatively Supercoiled Invader DNA by Cascade and Cas3

Open access
Westra, Edze R., van Erp, Paul B.G., Künne, Tim, Wong, Shi Pey, Staals, Raymond H.J., Seegers, Christel L.C., Bollen, Sander, Jore, Matthijs M., Semenova, Ekaterina, Severinov, Konstantin, de Vos, Willem M., Dame, Remus T., de Vries, Renko, Brouns, Stan J.J., van der Oost, John·2012·Molecular Cell

Abstract

Summary The prokaryotic CRISPR/Cas immune system is based on genomic loci that contain incorporated sequence tags from viruses and plasmids. Using small guide RNA molecules, these sequences act as a memory to reject returning invaders. Both the Cascade ribonucleoprotein complex and the Cas3 nuclease/helicase are required for CRISPR-interference in Escherichia coli, but it is unknown how natural target DNA molecules are recognized and neutralized by their combined action. Here we show that Cascade efficiently locates target sequences in negatively supercoiled DNA, but only if these are flanked by a Protospacer Adjacent Motif (PAM). PAM recognition by Cascade exclusively involves the crRNA-complementary DNA strand. After Cascade-mediated R-loop formation, the Cse1 subunit recruits Cas3, which catalyzes nicking of target DNA through its HD-nuclease domain. The target is then progressively unwound and cleaved by the joint ATP-dependent helicase activity and Mg2+-dependent HD-nuclease activity of Cas3, leading to complete target DNA degradation and invader neutralization.

Overview

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 · 10.1016/j.molcel.2012.03.018

Cites

39 of 39 references verified0 citation errors · 0 not checkable

Statistics

Verification

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

Self-check

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

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

Citations

Cites

Show all 39 references

Cited by

See all 511

Metadata

Authors
Westra, E. R., van Erp, P. B. G., Künne, T., Wong, S. P., Staals, R. H. J., Seegers, C. L. C., Bollen, S., Jore, M. M., Semenova, E., Severinov, K., de Vos, W. M., Dame, R. T., de Vries, R., Brouns, S. J. J., & van der Oost, J.
Venue
Molecular Cell
Publisher
Elsevier BV
Published
2012-06
Volume
46
Issue
5
Pages
595-605
ISSN
1097-2765 (ISSN-L)
OpenAlex
W2046563455
Cited by
511
References
39
FWCI
18.59
Type
journal article
Language
en
Open access
bronze

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

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: CRISPR Immunity Relies on the Consecutive Binding and Degradation of Negatively Supercoiled Invader DNA by Cascade and Cas3. https://app.cochat.ai/papers/10.1016/j.molcel.2012.03.018
The paper
Westra, E. R., van Erp, P. B. G., Künne, T., Wong, S. P., Staals, R. H. J., Seegers, C. L. C., Bollen, S., Jore, M. M., Semenova, E., Severinov, K., de Vos, W. M., Dame, R. T., de Vries, R., Brouns, S. J. J., & van der Oost, J. (2012). CRISPR Immunity Relies on the Consecutive Binding and Degradation of Negatively Supercoiled Invader DNA by Cascade and Cas3. Molecular Cell. https://doi.org/10.1016/j.molcel.2012.03.018

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.