Evidence map›Paper›PMID 36268794›Full record

ArticleMolecular microbiology2022

TnSmu1 is a functional integrative and conjugative element in Streptococcus mutans that when expressed causes growth arrest of host bacteria.

Lisa K McLellan, Mary E Anderson, Alan D Grossman

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
6.0field-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

12 citing papers in PubMed, 28 citations in OpenAlex.

  1. Specific host translation perturbations promote TnbioRxiv : the preprint server for biology · 2026
    Article
  2. Article
  3. Genomic instability and biofilm determinants inbioRxiv : the preprint server for biology · 2026
    Article
  4. Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. 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.

Lisa K McLellanDepartment of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.ORCID 0000-0001-6418-8039
Mary E AndersonDepartment of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.ORCID 0000-0002-6930-3830
Alan D GrossmanDepartment of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.ORCID 0000-0002-8235-7227
Massachusetts Institute of Technology · US

Funding

Mechanisms and regulation of replication, the cell cycle, gene expression, and horizontal gene transfer in prokaryotes, focusing on Bacillus subtilisR35GM122538 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI GROSSMAN, ALAN D · 2017 to 2021
$3.2M
Elucidating the regulation and spread of an integrative and conjugative element from Streptococcus mutans in the oral microbiomeF32DE032551 · NIDCR · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI MCLELLAN, LISA K · 2022 to 2022
$64k
NIGMS NIH HHS R35 GM122538
6 · The paper itself

Abstract

Integrative and conjugative elements (ICEs) are major drivers of horizontal gene transfer in bacteria. They mediate their own transfer from host cells (donors) to recipients and allow bacteria to acquire new phenotypes, including pathogenic and metabolic capabilities and drug resistances. Streptococcus mutans, a major causative agent of dental caries, contains a putative ICE, TnSmu1, integrated at the 3' end of a leucyl tRNA gene. We found that TnSmu1 is a functional ICE, containing all the genes necessary for ICE function. It excised from the chromosome and excision was stimulated by DNA damage. We identified the DNA junctions generated by excision of TnSmu1, defined the ends of the element, and detected the extrachromosomal circle. We found that TnSmu1 can transfer from S. mutans donors to recipients when co-cultured on solid medium. The presence of TnSmu1 in recipients inhibited successful acquisition of another copy and this inhibition was mediated, at least in part, by the likely transcriptional repressor encoded by the element. Using microscopy to track individual cells, we found that activation of TnSmu1 caused an arrest of cell growth. Our results demonstrate that TnSmu1 is a functional ICE that affects the biology of its host cells.

Indexed as

Dental CariesStreptococcus mutansConjugation, GeneticDNA Transposable ElementsGene Transfer, HorizontalHumansDNA Transposable Elementsconjugationhorizontal gene transferintegrative and conjugative elementmobile genetic elementStreptococcus mutans

Identifiers

PMID36268794
PMCPMC10098952
OpenAlexW4307036852

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.