Evidence map›Paper›PMID 31256988›Full record

ArticleMolecular cell2019

Catalytically Active Cas9 Mediates Transcriptional Interference to Facilitate Bacterial Virulence.

Hannah K Ratner, Andrés Escalera-Maurer, Anaïs Le Rhun, Siddharth Jaggavarapu, Jessie E Wozniak, Emily K Crispell, Emmanuelle Charpentier, David S Weiss

Open access · bronzeAbstract read
In one paragraph

Article in Molecular cell, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

46 citing papers in PubMed, 67 citations in OpenAlex.

  1. Article
  2. Article
  3. Bacterial small regulatory RNAs.Nature reviews. Microbiology · 2026
    Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Cas9 modulatesMicrobiology (Reading, England) · 2025
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. 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

8 authors at 4 institutions in 2 countries.

Hannah K RatnerMicrobiology and Molecular Genetics Program, Emory University, Atlanta, GA 30329, USA; Emory Vaccine Center, Emory University, Atlanta, GA 30329, USA; Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA.
Andrés Escalera-MaurerMax Planck Unit for the Science of Pathogens, 10117 Berlin, Germany; Helmholtz Centre for Infection Research, Department of Regulation in Infection Biology, 38124 Braunschweig, Germany; Institute for Biology, Humboldt University, 10115 Berlin, Germany.
Anaïs Le RhunMax Planck Unit for the Science of Pathogens, 10117 Berlin, Germany; Helmholtz Centre for Infection Research, Department of Regulation in Infection Biology, 38124 Braunschweig, Germany.
Siddharth JaggavarapuEmory Vaccine Center, Emory University, Atlanta, GA 30329, USA; Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA; Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30329, USA.
Jessie E WozniakMicrobiology and Molecular Genetics Program, Emory University, Atlanta, GA 30329, USA; Emory Vaccine Center, Emory University, Atlanta, GA 30329, USA; Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA.
Emily K CrispellMicrobiology and Molecular Genetics Program, Emory University, Atlanta, GA 30329, USA; Emory Vaccine Center, Emory University, Atlanta, GA 30329, USA; Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA.
Emmanuelle CharpentierMax Planck Unit for the Science of Pathogens, 10117 Berlin, Germany; Helmholtz Centre for Infection Research, Department of Regulation in Infection Biology, 38124 Braunschweig, Germany; Institute for Biology, Humboldt University, 10115 Berlin, Germany.
David S WeissMicrobiology and Molecular Genetics Program, Emory University, Atlanta, GA 30329, USA; Emory Vaccine Center, Emory University, Atlanta, GA 30329, USA; Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA; Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30329, USA. Electronic address: david.weiss@emory.edu.
Emory University · USHelmholtz Centre for Infection Research · DEHumboldt-Universität zu Berlin · DEMax Planck Unit for the Science of Pathogens · DE

Funding

Yerkes National Primate Research Center Role of type-I IFN in regulating COVID-19 induced inflammation and pathogenesisP51OD011132 · OD · EMORY UNIVERSITY · PI Joon Sup Lee · 2012 to 2026
$167.0M
Yessinia autotransporters (Yaps): Structure, function, and host responseU54AI057157 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI GOLDMAN, WILLIAM E · 2003 to 2013
$91.4M
CRISPR/Cas systems in bacterial gene regulation and virulenceR01AI110701 · NIAID · EMORY UNIVERSITY · PI WEISS, DAVID S · 2014 to 2018
$2.2M
NIAID NIH HHS R01 AI110701NIAID NIH HHS U54 AI057157NIH HHS P51 OD011132
6 · The paper itself

Abstract

In addition to defense against foreign DNA, the CRISPR-Cas9 system of Francisella novicida represses expression of an endogenous immunostimulatory lipoprotein. We investigated the specificity and molecular mechanism of this regulation, demonstrating that Cas9 controls a highly specific regulon of four genes that must be repressed for bacterial virulence. Regulation occurs through a protospacer adjacent motif (PAM)-dependent interaction of Cas9 with its endogenous DNA targets, dependent on a non-canonical small RNA (scaRNA) and tracrRNA. The limited complementarity between scaRNA and the endogenous DNA targets precludes cleavage, highlighting the evolution of scaRNA to repress transcription without lethally targeting the chromosome. We show that scaRNA can be reprogrammed to repress other genes, and with engineered, extended complementarity to an exogenous target, the repurposed scaRNA:tracrRNA-FnoCas9 machinery can also direct DNA cleavage. Natural Cas9 transcriptional interference likely represents a broad paradigm of regulatory functionality, which is potentially critical to the physiology of numerous Cas9-encoding pathogenic and commensal organisms.

Indexed as

CRISPR-Associated Protein 9CRISPR-Cas SystemsDNADNA CleavageFrancisellaGene Expression Regulation, BacterialLipoproteinsRNATranscription, GeneticVirulenceCas9 protein, Francisella novicidaCRISPR-Associated Protein 9DNALipoproteinsRNAbacterial pathogenesisCas9CRISPRFrancisella novicidagene regulationtranscription

Identifiers

PMID31256988
PMCPMC7205310
OpenAlexW2939315279

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.