Evidence map›Paper›PMID 17720821›Full record

ArticleApplied and environmental microbiology2007

Mariner-based transposon mutagenesis of Rickettsia prowazekii.

Zhi-Mei Liu, Aimee M Tucker, Lonnie O Driskell, David O Wood

Open access · greenAbstract readEvaluation Study
In one paragraph

Article in Applied and environmental microbiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
3.0field-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

63 citing papers in PubMed, 78 citations in OpenAlex.

  1. Article
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    Review
  11. Critical roles ofInfection and immunity · 2024
    Article
  12. Review
  13. MultipleFrontiers in cellular and infection microbiology · 2023
    Article
  14. Article
  15. Infection and immunity · 2022
    Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Review

3 more citing papers are in PubMed but not listed here.

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.

Zhi-Mei LiuDepartment of Microbiology and Immunology, Laboratory of Molecular Biology, University of South Alabama, Mobile, AL 36688-0002, USA. dowood@jaguar1.usouthal.edu
Aimee M Tucker
Lonnie O Driskell
David O Wood
University of South Alabama · US

Funding

GENETIC ANALYSIS OF RICKETTSIA PROWAZEKIIR37AI020384 · NIAID · UNIVERSITY OF SOUTH ALABAMA · PI WOOD, DAVID · 2000 to 2010
$3.8M
GENETIC ANALYSIS OF RICKETTSIA PROWAZEKIIR01AI020384 · NIAID · UNIVERSITY OF SOUTH ALABAMA · PI WOOD, DAVID · 1985 to 2015
$1.9M
Genetic Analysis of Rickettsia prowazekiiR56AI020384 · NIAID · UNIVERSITY OF SOUTH ALABAMA · PI WOOD, DAVID · 2010 to 2010
$388k
NIAID NIH HHS AI20384NIAID NIH HHS R01 AI020384NIAID NIH HHS R37 AI020384NIAID NIH HHS R56 AI020384
6 · The paper itself

Abstract

Rickettsia prowazekii, the causative agent of epidemic typhus, is an obligate intracellular bacterium that grows directly within the cytoplasm of its host cell, unbounded by a vacuolar membrane. The obligate intracytoplasmic nature of rickettsial growth places severe restrictions on the genetic analysis of this distinctive human pathogen. In order to expand the repertoire of genetic tools available for the study of this pathogen, we have employed the versatile mariner-based, Himar1 transposon system to generate insertional mutants of R. prowazekii. A transposon containing the R. prowazekii arr-2 rifampin resistance gene and a gene coding for a green fluorescent protein (GFP(UV)) was constructed and placed on a plasmid expressing the Himar1 transposase. Electroporation of this plasmid into R. prowazekii resulted in numerous transpositions into the rickettsial genome. Transposon insertion sites were identified by rescue cloning, followed by DNA sequencing. Random transpositions integrating at TA sites in both gene coding and intergenic regions were identified. Individual rickettsial clones were isolated by the limiting-dilution technique. Using both fixed and live-cell techniques, R. prowazekii transformants expressing GFP(UV) were easily visible by fluorescence microscopy. Thus, a mariner-based system provides an additional mechanism for generating rickettsial mutants that can be screened using GFP(UV) fluorescence.

Indexed as

DNA Transposable ElementsMutagenesis, InsertionalAnimalsAnti-Bacterial AgentsGenetic TechniquesGreen Fluorescent ProteinsImage Processing, Computer-AssistedL CellsMiceMicroscopy, FluorescenceRickettsia prowazekiiRifampinTransposasesAnti-Bacterial AgentsDNA Transposable ElementsGreen Fluorescent ProteinsRifampinTransposases

Identifiers

PMID17720821
PMCPMC2075046
OpenAlexW2040434499

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.