Evidence map›Paper›PMID 20385754›Full record

ArticleInfection and immunity2010

Zinc uptake contributes to motility and provides a competitive advantage to Proteus mirabilis during experimental urinary tract infection.

Greta R Nielubowicz, Sara N Smith, Harry L T Mobley

Abstract read
In one paragraph

Article in Infection and immunity, 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
4.1field-weighted citation impact, top 6% 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, 63 citations in OpenAlex.

  1. Review
  2. Overview ofFrontiers in microbiology · 2024
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. The Zinc Nutritional Immunity ofFrontiers in immunology · 2021
    Article
  9. Article
  10. Article
  11. Flagellar Motility Is Critical forFrontiers in microbiology · 2020
    Article
  12. Nutrient Zinc at the Host-Pathogen Interface.Trends in biochemical sciences · 2019
    Review
  13. Article
  14. Review
  15. Pathogenesis ofEcoSal Plus · 2018
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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.

Greta R NielubowiczDepartment of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan 48109, USA.
Sara N Smith
Harry L T Mobley
University of Michigan–Ann Arbor · US

Funding

Reciprocal Control of Motility and Adherence in UTIR01AI059722 · NIAID · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PEARSON, MELANIE M. · 2005 to 2024
$7.4M
MOLECULAR PATHOGENESIS OF E COLI UTIR01AI043363 · NIAID · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MOBLEY, HARRY L. · 1998 to 2012
$3.4M
Vaccine to prevent E. coli urinary tract infectionR56AI043363 · NIAID · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MOBLEY, HARRY L. · 2014 to 2014
$351k
NIAID NIH HHS AI059722NIAID NIH HHS AI43363NIAID NIH HHS R01 AI043363NIAID NIH HHS R01 AI059722NIAID NIH HHS R56 AI043363
6 · The paper itself

Abstract

Proteus mirabilis, a Gram-negative bacterium, represents a common cause of complicated urinary tract infections in catheterized patients or those with functional or anatomical abnormalities of the urinary tract. ZnuB, the membrane component of the high-affinity zinc (Zn(2+)) transport system ZnuACB, was previously shown to be recognized by sera from infected mice. Since this system has been shown to contribute to virulence in other pathogens, its role in Proteus mirabilis was investigated by constructing a strain with an insertionally interrupted copy of znuC. The znuC::Kan mutant was more sensitive to zinc limitation than the wild type, was outcompeted by the wild type in minimal medium, displayed reduced swimming and swarming motility, and produced less flaA transcript and flagellin protein. The production of flagellin and swarming motility were restored by complementation with znuCB in trans. Swarming motility was also restored by the addition of Zn(2+) to the agar prior to inoculation; the addition of Fe(2+) to the agar also partially restored the swarming motility of the znuC::Kan strain, but the addition of Co(2+), Cu(2+), or Ni(2+) did not. ZnuC contributes to but is not required for virulence in the urinary tract; the znuC::Kan strain was outcompeted by the wild type during a cochallenge experiment but was able to colonize mice to levels similar to the wild-type level during independent challenge. Since we demonstrated a role for ZnuC in zinc transport, we hypothesize that there is limited zinc present in the urinary tract and P. mirabilis must scavenge this ion to colonize and persist in the host.

Indexed as

LocomotionAnimalsBacterial ProteinsCations, DivalentFlagellinGene DeletionGenetic Complementation TestHumansIronMembrane Transport ProteinsMetalsMiceMice, Inbred CBAMutagenesis, InsertionalNursing HomesProteus InfectionsBacterial ProteinsCations, DivalentFlagellinIronMembrane Transport ProteinsMetalsVirulence FactorsZinc

Identifiers

PMID20385754
PMCPMC2876577
OpenAlexW2120809956

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.