Evidence map›Paper›PMID 22566508›Full record

ArticleInfection and immunity2012

Cellobiose-specific phosphotransferase system of Klebsiella pneumoniae and its importance in biofilm formation and virulence.

Meng-Chuan Wu, Ying-Chun Chen, Tzu-Lung Lin, Pei-Fang Hsieh, Jin-Town Wang

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.0field-weighted citation impact, top 29% 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

29 citing papers in PubMed, 51 citations in OpenAlex.

  1. Review
  2. Article
  3. Deciphering the gastrointestinal carriage ofInfection and immunity · 2024
    Review
  4. Advance typing ofHeliyon · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Regulation of biofilm formation inFrontiers in microbiology · 2023
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Microorganisms · 2020
    Article
  14. Article
  15. Article
  16. Article
  17. Hypervirulent Klebsiella pneumoniae.Clinical microbiology reviews · 2019
    Review
  18. Article
  19. Article
  20. Frontiers in microbiology · 2017
    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

5 authors at 2 institutions in 1 country.

Meng-Chuan WuDepartment of Microbiology, National Taiwan University College of Medicine, Taipei, Taiwan.
Ying-Chun Chen
Tzu-Lung Lin
Pei-Fang Hsieh
Jin-Town Wang
National Taiwan University · TWNational Taiwan University Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Klebsiella pneumoniae is a Gram-negative bacillus belonging to the family Enterobacteriaceae. In the past 20 years, K. pneumoniae has become the predominant pathogen causing community-acquired pyogenic liver abscess (PLA). The formation of biofilm facilitates bacterial colonization and has been implicated in reduced susceptibility to the host immune response. To investigate genes related to biofilm formation in a PLA-associated K. pneumoniae strain, a transposon mutant library was screened by microtiter plate assay to identify isolates impaired for biofilm formation. One of the mutants was disrupted in celB, encoding the putative cellobiose-specific subunit IIC of enzyme II (EIIC) of a carbohydrate phosphotransferase system (PTS). This transmembrane protein is responsible for recognizing and binding specific sugars and transporting them across the cell membrane into the cytoplasm. Deletion and chromosomal complementation of celB confirmed, by microtiter plate and slide culture assays, that celB was indeed responsible for biofilm formation. Cellobiose-specific PTS activities of deletion mutants grown in LB broth and 0.005% cellobiose minimal medium were markedly lower than that of the wild-type strain grown under the same conditions, thereby confirming the involvement of celB in cellobiose transport. In 0.005% cellobiose minimal medium, the celB mutant showed a delay in growth compared to the wild-type strain. In a mouse model of intragastric infection, deletion of the celB gene increased the survival rate from 12.5% to 87.5%, which suggests that the celB deletion mutant also exhibited reduced virulence. Thus, the celB locus of K. pneumoniae may contribute to biofilm formation and virulence through the metabolism of cellobiose.

Indexed as

AnimalsBiofilmsCellobioseDisease Models, AnimalDNA Transposable ElementsFemaleGene Knockout TechniquesHumansKlebsiella InfectionsKlebsiella pneumoniaeLiver AbscessMiceMice, Inbred BALB CMutagenesis, InsertionalPhosphoenolpyruvate Sugar Phosphotransferase SystemSurvival AnalysisCellobiosecellobiose phosphotransferase BDNA Transposable ElementsPhosphoenolpyruvate Sugar Phosphotransferase SystemVirulence Factors

Identifiers

PMID22566508
PMCPMC3416469
OpenAlexW2016093218

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.