Evidence map›Paper›PMID 36327213›Full record

ArticlePLoS biology2022

Prophage-like gene transfer agents promote Caulobacter crescentus survival and DNA repair during stationary phase.

Kevin Gozzi, Ngat T Tran, Joshua W Modell, Tung B K Le, Michael T Laub

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2022. 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
4.9field-weighted citation impact, top 4% 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, 27 citations in OpenAlex.

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  9. Spatial propagation of temperate phages within and among biofilms.Proceedings of the National Academy of Sciences of the United States of America · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 2 countries.

Kevin GozziDepartment of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America.
Ngat T TranDepartment of Molecular Microbiology, John Innes Centre, Norwich, United Kingdom.
Joshua W ModellDepartment of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America.
Tung B K LeDepartment of Molecular Microbiology, John Innes Centre, Norwich, United Kingdom.
Michael T LaubDepartment of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America.ORCID 0000-0002-8288-7607
John Innes Centre · GBMassachusetts Institute of Technology · USHoward Hughes Medical Institute · US

Funding

Cell Cycle Regulation in Caulobacter CrescentusR01GM082899 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI LAUB, MICHAEL · 2008 to 2020
$3.8M
Biotechnology and Biological Sciences Research Council BBS/E/J/000PR9791Howard Hughes Medical InstituteNIGMS NIH HHS R01 GM082899
6 · The paper itself

Abstract

Gene transfer agents (GTAs) are prophage-like entities found in many bacterial genomes that cannot propagate themselves and instead package approximately 5 to 15 kbp fragments of the host genome that can then be transferred to related recipient cells. Although suggested to facilitate horizontal gene transfer (HGT) in the wild, no clear physiological role for GTAs has been elucidated. Here, we demonstrate that the α-proteobacterium Caulobacter crescentus produces bona fide GTAs. The production of Caulobacter GTAs is tightly regulated by a newly identified transcription factor, RogA, that represses gafYZ, the direct activators of GTA synthesis. Cells lacking rogA or expressing gafYZ produce GTAs harboring approximately 8.3 kbp fragment of the genome that can, after cell lysis, be transferred into recipient cells. Notably, we find that GTAs promote the survival of Caulobacter in stationary phase and following DNA damage by providing recipient cells a template for homologous recombination-based repair. This function may be broadly conserved in other GTA-producing organisms and explain the prevalence of this unusual HGT mechanism.

Indexed as

Caulobacter crescentusProphagesBacterial ProteinsDNA RepairGene Expression Regulation, BacterialGene Transfer, HorizontalGenome, BacterialBacterial Proteins

Identifiers

PMID36327213
PMCPMC9632790
OpenAlexW4308101969

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.