Evidence map›Paper›PMID 33693715›Full record

ArticleNucleic acids research2021

A CRISPR-Cas9-integrase complex generates precise DNA fragments for genome integration.

Shrutee Jakhanwal, Brady F Cress, Pascal Maguin, Marco J Lobba, Luciano A Marraffini, Jennifer A Doudna

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.1field-weighted citation impact, top 24% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. CRISPR adaptation inmSphere · 2025
    Article
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  5. Review
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  7. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 1 country.

Shrutee JakhanwalDepartment of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA.
Brady F CressDepartment of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA.
Pascal MaguinLaboratory of Bacteriology, The Rockefeller University, New York, NY 10065, USA.
Marco J LobbaDepartment of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA.
Luciano A MarraffiniLaboratory of Bacteriology, The Rockefeller University, New York, NY 10065, USA.
Jennifer A DoudnaDepartment of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA.
Rockefeller University · USUniversity of California, Berkeley · USInnovative Genomics Institute · USQB3 · US

Funding

Center for Genomic Editing and Recording: Development and Application of Next-Generation Genome and Epigenome Editing Methods to Advance the Study and Treatment of Human DiseaseRM1HG009490 · NHGRI · WHITEHEAD INSTITUTE FOR BIOMEDICAL RES · PI Brittany S. Adamson, Martin Joseph Ankrah Aryee · 2017 to 2026
$22.7M
Dissemination and Coordinating Center for the SCGE ConsortiumU24HG010423 · NHGRI · MEDICAL COLLEGE OF WISCONSIN · PI DWINELL, MELINDA R · 2019 to 2023
$15.0M
Design and Development of Ligand-ResponsiveCRISPR-Cas EnzymesF32GM131654 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI CRESS, BRADY FLETCHER · 2019 to 2021
$137k
Howard Hughes Medical InstituteNHGRI NIH HHS RM1 HG009490NHGRI NIH HHS U24 HG010423NIGMS NIH HHS F32 GM131654
6 · The paper itself

Abstract

CRISPR-Cas9 is an RNA-guided DNA endonuclease involved in bacterial adaptive immunity and widely repurposed for genome editing in human cells, animals and plants. In bacteria, RNA molecules that guide Cas9's activity derive from foreign DNA fragments that are captured and integrated into the host CRISPR genomic locus by the Cas1-Cas2 CRISPR integrase. How cells generate the specific lengths of DNA required for integrase capture is a central unanswered question of type II-A CRISPR-based adaptive immunity. Here, we show that an integrase supercomplex comprising guide RNA and the proteins Cas1, Cas2, Csn2 and Cas9 generates precisely trimmed 30-base pair DNA molecules required for genome integration. The HNH active site of Cas9 catalyzes exonucleolytic DNA trimming by a mechanism that is independent of the guide RNA sequence. These results show that Cas9 possesses a distinct catalytic capacity for generating immunological memory in prokaryotes.

Indexed as

CRISPR-Cas SystemsClustered Regularly Interspaced Short Palindromic RepeatsCRISPR-Associated Protein 9CRISPR-Associated ProteinsDNAGenomeIntegrasesProtein DomainsRNACRISPR-Associated Protein 9CRISPR-Associated ProteinsDNAIntegrasesRNA

Identifiers

PMID33693715
PMCPMC8034620
OpenAlexW3133887299

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.