Evidence map›Paper›PMID 31585845›Full record

ArticleCell host & microbe2019

Cas9 Cleavage of Viral Genomes Primes the Acquisition of New Immunological Memories.

Philip M Nussenzweig, Jon McGinn, Luciano A Marraffini

Open access · bronzeAbstract read
In one paragraph

Article in Cell host & microbe, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
5.7field-weighted citation impact, top 3% 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

38 citing papers in PubMed, 90 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. CRISPR adaptation inmSphere · 2025
    Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. 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

3 authors at 1 institution in 1 country.

Philip M NussenzweigLaboratory of Bacteriology, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA.
Jon McGinnLaboratory of Bacteriology, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA.
Luciano A MarraffiniLaboratory of Bacteriology, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA; Howard Hughes Medical Institute, The Rockefeller University, 1230 York Ave., New York, NY 10065, USA. Electronic address: marraffini@rockefeller.edu.
Rockefeller University · US

Funding

Weill Cornell/Rockefeller/Sloan-Kettering MST ProgramT32GM007739 · NIGMS · WEILL MEDICAL COLL OF CORNELL UNIV · PI HSU, KATHARINE C · 1985 to 2023
$51.1M
Generation of immunological memory by CRISPR-Cas systemsDP1GM128184 · NIGMS · ROCKEFELLER UNIVERSITY · PI MARRAFFINI, LUCIANO A · 2017 to 2021
$5.9M
NIGMS NIH HHS DP1 GM128184NIGMS NIH HHS T32 GM007739
6 · The paper itself

Abstract

Type II CRISPR-Cas systems defend prokaryotes from bacteriophage infection through the acquisition of short viral DNA sequences known as spacers, which are transcribed into short RNA guides to specify the targets of the Cas9 nuclease. To counter the potentially devastating propagation of escaper phages with mutations in the target sequences, the host population acquires many different spacers. Whether and how pre-existing spacers in type II systems affect the acquisition of new ones is unknown. Here, we demonstrate that previously acquired spacers promote additional spacer acquisition from the vicinity of the target DNA site cleaved by Cas9. Therefore, CRISPR immune cells acquire additional spacers at the same time as they destroy the infecting virus. This anticipates the rise of escapers or related viruses that could escape targeting by the first spacer acquired. Our results thus reveal Cas9's role in the generation of immunological memories.

Indexed as

BacteriophagesClustered Regularly Interspaced Short Palindromic RepeatsCRISPR-Associated Protein 9CRISPR-Cas SystemsDNA, IntergenicDNA, ViralRNA, Guide, CRISPR-Cas SystemsStaphylococcus aureusStreptococcus thermophilusCRISPR-Associated Protein 9DNA, IntergenicDNA, ViralRNA, Guide, CRISPR-Cas Systemsadaptive immunitybacteriophageCas9CRISPRimmunityphage defenseprimingspacer acquisitionStaphylococcusStreptococcus

Identifiers

PMID31585845
PMCPMC7558852
OpenAlexW2978200960

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.