Evidence map›Paper›PMID 20406298›Full record

ArticleEnvironmental microbiology2010

Polyamines are required for the expression of key Hms proteins important for Yersinia pestis biofilm formation.

Brian W Wortham, Marcos A Oliveira, Jacqueline D Fetherston, Robert D Perry

Open access · greenAbstract read
In one paragraph

Article in Environmental microbiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
1.8field-weighted citation impact, top 17% 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

38 citing papers in PubMed, 60 citations in OpenAlex.

  1. The Homoserine DehydrogenaseMicroorganisms · 2026
    Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Microbial Metabolites Determine Host Health and the Status of Some Diseases.International journal of molecular sciences · 2019
    Review
  9. Article
  10. Article
  11. Polyamine function in archaea and bacteria.The Journal of biological chemistry · 2018
    Review
  12. Article
  13. Article
  14. Frontiers in cellular and infection microbiology · 2018
    Article
  15. Article
  16. Spermidine promotesThe Journal of biological chemistry · 2017
    Article
  17. Transcriptomic Analysis of the Adaptation ofFrontiers in microbiology · 2017
    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

4 authors at 1 institution in 1 country.

Brian W WorthamDepartment of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536, USA.
Marcos A Oliveira
Jacqueline D Fetherston
Robert D Perry
University of Kentucky · US

Funding

Plague biofilm formation--regulation and functionR01AI025098 · NIAID · UNIVERSITY OF KENTUCKY · PI PERRY, ROBERT DONALD · 1993 to 2013
$2.9M
Enhancing Research Capabilities to Encourage Minorities in Scientific ProfessionsG11HD052388 · NICHD · UNIVERSITY OF THE INCARNATE WORD · PI VICHCALES, KEVIN · 2007 to 2011
$484k
IRON STORAGE AND UPTAKE IN YERSINIA PESTISR29AI025098 · NIAID · UNIVERSITY OF KENTUCKY · PI PERRY, ROBERT DONALD · 1988 to 1992
–
NIAID NIH HHS AI25098NIAID NIH HHS R01 AI025098NICHD NIH HHS G11 HD052388
6 · The paper itself

Abstract

We previously showed that mutations in the genes encoding the two main biosynthetic enzymes responsible for polyamine production, arginine decarboxylase (SpeA) and ornithine decarboxylase (SpeC) cause a loss of biofilm formation in Yersinia pestis. In Y. pestis the development of a biofilm is dependent on 6 Hms (hemin storage) proteins (HmsH, F, R, S, T and P) grouped into 3 operons; hmsHFRS, hmsT and hmsP. In this article we show that polyamines are necessary to maintain the levels of key Hms proteins. In the absence of polyamines there is an approximately 93%, approximately 43% and approximately 90% reduction in protein levels of HmsR, HmsS and HmsT respectively. Overexpression of hmsR and hmsT from plasmids alone can restore biofilm formation to a SpeA(-)SpeC(-) mutant. Addition of exogenous putrescine also restores normal levels of HmsR, HmsS, HmsT and biofilm production. Analyses using transcriptional reporters and quantitative RT-PCR indicate that the initiation of transcription and mRNA stability are not reduced by polyamine deficiency. Instead, translational reporters indicate that polyamines function at least in part by modulating the translation of HmsR and HmsT. Although construction of a consensus Shine-Dalgarno sequence upstream of hmsT modestly reduced the stimulation of translation by putrescine, additional mechanisms likely contribute to the polyamine-dependent expression of HmsT. Finally, we have shown that polyamines play a role in bubonic plague.

Indexed as

AnimalsBacterial Proteinsbeta-GalactosidaseBiofilmsDisease Models, AnimalGene Expression ProfilingGene Expression Regulation, BacterialGenes, ReporterMicePlaguePolyaminesReverse Transcriptase Polymerase Chain ReactionRNA StabilityVirulenceYersinia pestisBacterial Proteinsbeta-GalactosidaseHMST protein, Yersinia pestisPolyamines

Identifiers

PMID20406298
PMCPMC3039482
OpenAlexW1555425798

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.