Evidence map›Paper›PMID 20097859›Full record

ArticleJournal of bacteriology2010

Direct evidence for control of the pheromone-inducible prgQ operon of Enterococcus faecalis plasmid pCF10 by a countertranscript-driven attenuation mechanism.

Christopher M Johnson, Dawn A Manias, Heather A H Haemig, Sonia Shokeen, Keith E Weaver, Tina M Henkin, Gary M Dunny

Abstract read
In one paragraph

Article in Journal of bacteriology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

28 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Enterococcal Genetics.Microbiology spectrum · 2019
    Review
  8. Regulation of Gram-Positive Conjugation.Frontiers in microbiology · 2019
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Identification of a conserved branched RNA structure that functions as a factor-independent terminator.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  17. Article
  18. Article
  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

7 authors at 4 institutions in 1 country.

Christopher M JohnsonDepartment of Microbiology, University of Minnesota, Minneapolis, Minnesota 55455, USA.
Dawn A Manias
Heather A H Haemig
Sonia Shokeen
Keith E Weaver
Tina M Henkin
Gary M Dunny
University of South Dakota · USOffice of Basic Energy Sciences · USThe Ohio State University · USUniversity of Minnesota · US

Funding

REGULATION OF BACILLUS SUBTILIS TRNA SYNTHETASE GENESR01GM047823 · NIGMS · OHIO STATE UNIVERSITY · PI HENKIN, TINA M. · 1994 to 2019
$4.8M
GENETIC FUNCTIONS OF CONJUGATIVE STREPTOCOCCAL R FACTORR01GM049530 · NIGMS · UNIVERSITY OF MINNESOTA TWIN CITIES · PI DUNNY, GARY M · 1992 to 2014
$3.6M
Study of stability genes of E. faecalis plasmid pAD1R01GM055544 · NIGMS · UNIVERSITY OF SOUTH DAKOTA · PI WEAVER, KEITH E · 1999 to 2006
$1.2M
NIGMS NIH HHS GM47823NIGMS NIH HHS GM49530NIGMS NIH HHS GM55544NIGMS NIH HHS R01 GM047823NIGMS NIH HHS R01 GM049530NIGMS NIH HHS R01 GM055544
6 · The paper itself

Abstract

The mating response of Enterococcus faecalis cells carrying the conjugative plasmid pCF10 is controlled by multiple regulatory circuits. Initiation of transcription of the prgQ conjugation operon is controlled by the peptide receptor protein PrgX; binding of the pheromone peptide cCF10 to PrgX abolishes PrgX repression, while binding of the inhibitor peptide iCF10 enhances repression. The results of molecular analysis of prgQ transcripts and genetic studies suggested that the elongation of prgQ transcripts past a putative terminator (IRS1) may be controlled by the interaction of nascent prgQ mRNAs with a small antisense RNA (Anti-Q) encoded within prgQ. Direct evidence for interaction of these RNAs, as well as the resulting effects on readthrough of prgQ transcription, has been limited. Here we report the results of experiments that (i) determine the inherent termination properties of prgQ transcripts in the absence of Anti-Q; (ii) determine the direct effects of the interaction of Anti-Q with nascent prgQ transcripts in the absence of complicating effects of the PrgX protein; and (iii) begin to dissect the structural components involved in these interactions. The results confirm the existence of alternative terminating and antiterminating forms of nascent prgQ transcripts in vivo and demonstrate that the interaction of Anti-Q with these transcripts leads to termination via inhibition of antiterminator formation. In vitro transcription assays support the major results of the in vivo studies. The data support a model for Anti-Q function suggested from recent studies of these RNAs and their interactions in vitro (S. Shokeen, C. M. Johnson, T. J. Greenfield, D. A. Manias, G. M. Dunny, and K. E. Weaver, submitted for publication).

Indexed as

Bacterial ProteinsBase SequenceEnterococcus faecalisGene Expression Regulation, BacterialPheromonesProtein Sorting SignalsTranscription, GeneticBacterial ProteinsiCF10 peptide precursor, Plasmid pCF10PheromonesProtein Sorting Signals

Identifiers

PMID20097859
PMCPMC2832536
OpenAlexW2150910305

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.