Evidence map›Paper›PMID 32367067›Full record

ArticleNature structural & molecular biology2020

Real-time observation of CRISPR spacer acquisition by Cas1-Cas2 integrase.

Jagat B Budhathoki, Yibei Xiao, Gabriel Schuler, Chunyi Hu, Alexander Cheng, Fran Ding, Ailong Ke

Open access · greenAbstract read
In one paragraph

Article in Nature structural & molecular biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

18 citing papers in PubMed, 29 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. CRISPR-Cas systems in enterococci.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024
    Review
  5. Precise Gene Knock-In Tools with Minimized Risk of DSBs: A Trend for Gene Manipulation.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Review
  6. Article
  7. Assessing spacer acquisition rates inFrontiers in microbiology · 2024
    Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
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

7 authors at 1 institution in 1 country.

Jagat B BudhathokiDepartment of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA.
Yibei Xiao *Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA.
Gabriel Schuler *Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA.
Chunyi HuDepartment of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA.
Alexander ChengDepartment of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA.
Fran DingDepartment of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA.
Ailong KeDepartment of Molecular Biology and Genetics, Cornell University, Ithaca, NY, USA. ailong.ke@cornell.edu.ORCID http://orcid.org/0000-0001-5957-7822
Cornell University · US

Funding

Mechanistic Investigation of RNA-Mediated Gene Regulation and ImmunityR35GM118174 · NIGMS · YALE UNIVERSITY · PI AILONG KE · 2016 to 2026
$7.9M
Structure and mechanism of CRISPR interference.R01GM102543 · NIGMS · CORNELL UNIVERSITY · PI KE, AILONG · 2013 to 2015
$917k
NIGMS NIH HHS R01 GM102543NIGMS NIH HHS R35 GM118174
6 · The paper itself

Abstract

Cas1 integrase associates with Cas2 to insert short DNA fragments into a CRISPR array, establishing nucleic acid memory in prokaryotes. Here we applied single-molecule FRET methods to the Enterococcus faecalis (Efa) Cas1-Cas2 system to establish a kinetic framework describing target-searching, integration, and post-synapsis events. EfaCas1-Cas2 on its own is not able to find the CRISPR repeat in the CRISPR array; it only does so after prespacer loading. The leader sequence adjacent to the repeat further stabilizes EfaCas1-Cas2 contacts, enabling leader-side integration and subsequent spacer-side integration. The resulting post-synaptic complex (PSC) has a surprisingly short mean lifetime. Remarkably, transcription effectively resolves the PSC, and we predict that this is a conserved mechanism that ensures efficient and directional spacer integration in many CRISPR systems. Overall, our study provides a complete model of spacer acquisition, which can be harnessed for DNA-based information storage and cell lineage tracing technologies.

Indexed as

Clustered Regularly Interspaced Short Palindromic RepeatsElectroporationEnterococcus faecalisEscherichia coliFluorescence Resonance Energy TransferIntegrasesKineticsMicroorganisms, Genetically-ModifiedMutationTranscription, GeneticIntegrases

Identifiers

PMID32367067
PMCPMC7241818
OpenAlexW3022728650

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.