Evidence map›Paper›PMID 23746526›Full record

ArticleBiophysical journal2013

Carbohydrate recognition by RpfB from Mycobacterium tuberculosis unveiled by crystallographic and molecular dynamics analyses.

Flavia Squeglia, Maria Romano, Alessia Ruggiero, Luigi Vitagliano, Alfonso De Simone, Rita Berisio

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.6field-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

22 citing papers in PubMed, 43 citations in OpenAlex.

  1. Review
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  5. Computer-aided identification ofFrontiers in pharmacology · 2023
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  6. Pathogens (Basel, Switzerland) · 2022
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  7. Structure-Based Development of SARS-CoV-2 Spike Interactors.International journal of molecular sciences · 2022
    Article
  8. Article
  9. Review
  10. Identification andHeliyon · 2020
    Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Lytic transglycosylases: concinnity in concision of the bacterial cell wall.Critical reviews in biochemistry and molecular biology · 2017
    Review
  17. Article
  18. Article
  19. Mycobacterial Growth.Cold Spring Harbor perspectives in medicine · 2015
    Review
  20. 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 at 2 institutions in 2 countries.

Flavia SquegliaInstitute of Biostructures and Bioimaging, C.N.R., Naples, Italy.
Maria Romano
Alessia Ruggiero
Luigi Vitagliano
Alfonso De Simone
Rita Berisio
Institute of Biostructure and Bioimaging · ITImperial College London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Resuscitation of Mtb is crucial to the etiology of Tuberculosis, because latent tuberculosis is estimated to affect one-third of the world population. The resuscitation-promoting factor RpfB is mainly responsible for Mtb resuscitation from dormancy. Given the impact of latent Tuberculosis, RpfB represents an interesting target for tuberculosis drug discovery. However, no molecular models of substrate binding and catalysis are hitherto available for this enzyme. Here, we identified key interactions involved in substrate binding to RpfB by combining x-ray diffraction studies and computational approaches. The crystal structure of RpfB catalytic domain in complex with N,N',N"-triacetyl-chitotriose, as described here, provides the first, to our knowledge, atomic representation of ligand recognition by RpfB and demonstrates that the strongest interactions are established by the N-acetylglucosamine moiety in the central region of the enzyme binding cleft. Molecular dynamics analyses provided information on the dynamic behavior of protein-substrate interactions and on the role played by the solvent in RpfB function. These data combined with sequence conservation analysis suggest that Glu-292 is the sole residue crucial for catalysis, implying that RpfB acts via the formation of an oxocarbenium ion rather than a covalent intermediate. Present data represent a solid base for the design of effective drug inhibitors of RpfB. Moreover, homology models were generated for the catalytic domains of all members of the Mtb Rpf family (RpfA-E). The analysis of these models unveiled analogies and differences among the different members of the Rpf protein family.

Indexed as

Carbohydrate MetabolismMolecular Dynamics SimulationMycobacterium tuberculosisBacterial ProteinsCatalytic DomainCrystallography, X-RayEnzyme InhibitorsLigandsProtein BindingBacterial ProteinsEnzyme InhibitorsLigands

Identifiers

PMID23746526
PMCPMC3672874
OpenAlexW2044463654

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.