Evidence map›Paper›PMID 29379209›Full record

ArticleNature microbiology2018

Spontaneous CRISPR loci generation in vivo by non-canonical spacer integration.

Jeff Nivala, Seth L Shipman, George M Church

Open access · greenAbstract read
In one paragraph

Article in Nature microbiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

19 citing papers in PubMed, 23 citations in OpenAlex.

  1. Toward DNA-Based Recording of Biological Processes.International journal of molecular sciences · 2024
    Review
  2. Article
  3. Assessing spacer acquisition rates inFrontiers in microbiology · 2024
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. CRISPR Arrays Away fromThe CRISPR journal · 2020
    Article
  9. Detection of CRISPR adaptation.Biochemical Society transactions · 2020
    Review
  10. Review
  11. Article
  12. Spermidine strongly increases the fidelity ofThe Journal of biological chemistry · 2019
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. CRISPRs from scratch.Nature microbiology · 2018
    Article
  19. Bacterial physiology: Spacers go off-site.Nature reviews. Microbiology · 2018
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Jeff NivalaDepartment of Genetics, Harvard Medical School, Boston, MA, USA.ORCID http://orcid.org/0000-0002-8210-5417
Seth L ShipmanDepartment of Genetics, Harvard Medical School, Boston, MA, USA.
George M ChurchDepartment of Genetics, Harvard Medical School, Boston, MA, USA. gchurch@genetics.med.harvard.edu.ORCID http://orcid.org/0000-0003-3535-2076
Harvard University · US

Funding

Center for Genomically Engineered OrgansRM1HG008525 · NHGRI · HARVARD MEDICAL SCHOOL · PI CHURCH, GEORGE M · 2015 to 2019
$10.2M
Recording neural activities onto DNAR01MH103910 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI BOYDEN, EDWARD S., CHURCH, GEORGE M · 2013 to 2017
$9.5M
NHGRI NIH HHS RM1 HG008525NIMH NIH HHS R01 MH103910
6 · The paper itself

Abstract

The adaptation phase of CRISPR-Cas immunity depends on the precise integration of short segments of foreign DNA (spacers) into a specific genomic location within the CRISPR locus by the Cas1-Cas2 integration complex. Although off-target spacer integration outside of canonical CRISPR arrays has been described in vitro, no evidence of non-specific integration activity has been found in vivo. Here, we show that non-canonical off-target integrations can occur within bacterial chromosomes at locations that resemble the native CRISPR locus by characterizing hundreds of off-target integration locations within Escherichia coli. Considering whether such promiscuous Cas1-Cas2 activity could have an evolutionary role through the genesis of neo-CRISPR loci, we combed existing CRISPR databases and available genomes for evidence of off-target integration activity. This search uncovered several putative instances of naturally occurring off-target spacer integration events within the genomes of Yersinia pestis and Sulfolobus islandicus. These results are important in understanding alternative routes to CRISPR array genesis and evolution, as well as in the use of spacer acquisition in technological applications.

Indexed as

Clustered Regularly Interspaced Short Palindromic RepeatsGenetic LociCRISPR-Cas SystemsDNA, IntergenicEscherichia coliEvolution, MolecularGenome, BacterialSulfolobusYersinia pestisDNA, Intergenic

Identifiers

PMID29379209
PMCPMC5832444
OpenAlexW2789675261

What OpenQuestion holds

Textmetadata
LicenceTDM
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.