Evidence map›Paper›PMID 25452498›Full record

ArticleThe EMBO journal2015

BREX is a novel phage resistance system widespread in microbial genomes.

Tamara Goldfarb, Hila Sberro, Eyal Weinstock, Ofir Cohen, Shany Doron, Yoav Charpak-Amikam, Shaked Afik, Gal Ofir, Rotem Sorek

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 311 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
311citing papers in PubMed, 1 pooled it
14.9field-weighted citation impact, top 1% 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

311 citing papers in PubMed, 1 synthesis or guideline pooled it, 518 citations in OpenAlex.

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251 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 2 countries.

Tamara GoldfarbDepartment of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel.
Hila SberroDepartment of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel.
Eyal WeinstockDepartment of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel.
Ofir CohenDepartment of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel.
Shany DoronDepartment of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel.
Yoav Charpak-AmikamDepartment of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel.
Shaked AfikComputational Biology Graduate Group, University of California Berkeley, Berkeley, CA, USA.
Gal OfirDepartment of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel.
Rotem SorekDepartment of Molecular Genetics, Weizmann Institute of Science, Rehovot, Israel rotem.sorek@weizmann.ac.il.
Weizmann Institute of Science · ILUniversity of California, Berkeley · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The perpetual arms race between bacteria and phage has resulted in the evolution of efficient resistance systems that protect bacteria from phage infection. Such systems, which include the CRISPR-Cas and restriction-modification systems, have proven to be invaluable in the biotechnology and dairy industries. Here, we report on a six-gene cassette in Bacillus cereus which, when integrated into the Bacillus subtilis genome, confers resistance to a broad range of phages, including both virulent and temperate ones. This cassette includes a putative Lon-like protease, an alkaline phosphatase domain protein, a putative RNA-binding protein, a DNA methylase, an ATPase-domain protein, and a protein of unknown function. We denote this novel defense system BREX (Bacteriophage Exclusion) and show that it allows phage adsorption but blocks phage DNA replication. Furthermore, our results suggest that methylation on non-palindromic TAGGAG motifs in the bacterial genome guides self/non-self discrimination and is essential for the defensive function of the BREX system. However, unlike restriction-modification systems, phage DNA does not appear to be cleaved or degraded by BREX, suggesting a novel mechanism of defense. Pan genomic analysis revealed that BREX and BREX-like systems, including the distantly related Pgl system described in Streptomyces coelicolor, are widely distributed in ~10% of all sequenced microbial genomes and can be divided into six coherent subtypes in which the gene composition and order is conserved. Finally, we detected a phage family that evades the BREX defense, implying that anti-BREX mechanisms may have evolved in some phages as part of their arms race with bacteria.

Indexed as

DNA MethylationGenome, MicrobialBacillus subtilisBacteriophagesBiological EvolutionDNA, BacterialDNA Modification MethylasesDNA, ViralPhylogenyVirulenceDNA, BacterialDNA Modification MethylasesDNA, ViralCRISPRPGLpglZphage defense

Identifiers

PMID25452498
PMCPMC4337064
OpenAlexW2000541324

What OpenQuestion holds

Textmetadata
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.