Evidence map›Paper›PMID 23274986›Full record

ArticleJournal of microbiology (Seoul, Korea)2012

Catabolite control protein A of Streptococcus suis type 2 contributes to sugar metabolism and virulence.

Yulong Tang, Wei Wu, Xiaoyan Zhang, Zhongyan Lu, Jianshun Chen, Weihuan Fang

Abstract read
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In one paragraph

Article in Journal of microbiology (Seoul, Korea), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Role of Metabolic Adaptation ofPathogens (Basel, Switzerland) · 2023
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  10. Enhanced Production of Polymyxin E inBioMed research international · 2018
    Article
  11. Frontiers in cellular and infection microbiology · 2018
    Article
  12. Stress Physiology of Lactic Acid Bacteria.Microbiology and molecular biology reviews : MMBR · 2016
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. 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

6 authors.

Yulong TangInstitute of Preventive Veterinary Medicine and Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Zhejiang University, Hangzhou 310058, PR China.
Wei Wu
Xiaoyan Zhang
Zhongyan Lu
Jianshun Chen
Weihuan Fang

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Catabolite control protein A (CcpA) is the major transcriptional regulator in carbon catabolite repression in several Gram-positive bacteria. We attempted to characterize the role of a CcpA homologue of Streptococcus suis type 2 in sugar metabolism and virulence. Addition of glucose or sucrose to the defined medium significantly reduced the activity of raffinose-inducible α-galactosidase, cellobiose-inducible β-glucosidase, and maltose-inducible α-glucosidase of the wild-type strain by about 9, 4, and 2-3 fold, respectively. Deletion of ccpA substantially derepressed the effects of repressing sugars on α-galactosidase or β-glucosidase activity. The ccpA deletion mutant showed reduced expression of virulence genes sly and eno (P<0.05), decreased adhesion to and invasion into endothelial cells (P<0.05), and attenuated virulence to mice with significant reduction of death rate and bacterial burden in organs, as compared to the wild-type strain. Both the in vitro and in vivo defect phenotypes were reversible by ccpA complementation. Thus, this study shows that CcpA of S. suis type 2 plays an important role in carbon catabolite repression and virulence.

Indexed as

Carbohydrate Metabolismalpha-GalactosidaseAmino Acid SequenceAnimalsBacterial ProteinsBase Sequencebeta-GlucosidaseCell AdhesionFemaleGene DeletionGene Expression Regulation, BacterialGene OrderMiceMolecular Sequence DataSequence AlignmentStreptococcus suisalpha-GalactosidaseBacterial Proteinsbeta-Glucosidase

Identifiers

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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.