Evidence map›Paper›PMID 27472033›Full record

ArticleMolecular microbiology2016

ManLMN is a glucose transporter and central metabolic regulator in Streptococcus pneumoniae.

Eleanor Fleming, Andrew Camilli

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

18 citing papers in PubMed, 27 citations in OpenAlex.

  1. AJournal of bacteriology · 2026
    Review
  2. Article
  3. TheJournal of bacteriology · 2025
    Article
  4. Systematic analysis of the glucose-PTS inApplied and environmental microbiology · 2025
    Article
  5. Article
  6. Article
  7. Identification ofJournal of bacteriology · 2023
    Article
  8. Article
  9. Combining the In Silico and In Vitro Assays to IdentifyPharmaceuticals (Basel, Switzerland) · 2023
    Article
  10. Article
  11. Article
  12. Article
  13. Biology of Oral Streptococci.Microbiology spectrum · 2018
    Review
  14. Article
  15. Article
  16. Coordinated Regulation of the EIIApplied and environmental microbiology · 2017
    Article
  17. Article
  18. 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

2 authors at 2 institutions in 1 country.

Eleanor FlemingProgram in Molecular Microbiology, Sackler School of Graduate Biomedical Sciences, Howard Hughes Medical Institute, and Department of Molecular Biology and Microbiology, Tufts University School of Medicine, 136 Harrison Avenue, Boston, MA, 02111, USA.
Andrew CamilliProgram in Molecular Microbiology, Sackler School of Graduate Biomedical Sciences, Howard Hughes Medical Institute, and Department of Molecular Biology and Microbiology, Tufts University School of Medicine, 136 Harrison Avenue, Boston, MA, 02111, USA. andrew.camilli@tufts.edu.
Howard Hughes Medical Institute · USTufts University · US

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

Streptococcus pneumoniae is a common colonizer of the human nasopharynx and a leading cause of bacterial pneumonia and otitis media, among other invasive diseases. During both colonization and invasive disease S. pneumoniae ferments host-derived carbohydrates as its primary means of generating energy. This pathogen is adept at transporting and metabolizing a wide variety of carbohydrates. We found the highly conserved PTS ManLMN contributes to growth on glucose and is also essential for growth on a variety of nonpreferred carbohydrates, suggesting it is a multisubstrate transporter. Exploration of this phenotype revealed ManLMN is required for inducing expression of downstream metabolic genes in response to carbohydrate stimuli. We further demonstrate that ManLMN's role as a constitutively expressed transporter is likely unique and integral to pneumococcus's strategy of carbon catabolite repression (CCR). Using a selection for suppressors, we explored how ManLMN is integrated into the CCR regulatory framework in S. pneumoniae. We identified two hypothetical small proteins and the virulence regulator SmrC as potential mediators of CCR in connection with ManLMN. Characterization of these two hypothetical proteins revealed they influence transcriptional regulation of carbohydrate transporters. We propose a model unifying these observations in which ManLMN is a versatile surveyor of available carbohydrates in S. pneumoniae.

Indexed as

Bacterial ProteinsBiological TransportCarbohydrate MetabolismCatabolite RepressionDNA-Binding ProteinsGlucose Transport Proteins, FacilitativeHumansOperonPhosphoenolpyruvate Sugar Phosphotransferase SystemRepressor ProteinsStreptococcus pneumoniaeBacterial ProteinsDNA-Binding ProteinsGlucose Transport Proteins, FacilitativePhosphoenolpyruvate Sugar Phosphotransferase SystemRepressor Proteins

Identifiers

PMID27472033
PMCPMC5116393
OpenAlexW2512749803

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.