Evidence map›Paper›PMID 25173704›Full record

ArticleThe Journal of biological chemistry2014

The solution structure, binding properties, and dynamics of the bacterial siderophore-binding protein FepB.

Byron C H Chu, Renee Otten, Karla D Krewulak, Frans A A Mulder, Hans J Vogel

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

17 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Biomolecular NMR assignments · 2020
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  5. Article
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  7. Article
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  9. Genetically encoded FRET-based optical sensor for HgJournal of industrial microbiology & biotechnology · 2019
    Article
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  11. Review
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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 3 countries.

Byron C H ChuFrom the Biochemistry Research Group, Department of Biological Sciences, University of Calgary, Alberta T2N 1N4, Canada.
Renee Ottenthe Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747 AG Groningen, The Netherlands, and.
Karla D KrewulakFrom the Biochemistry Research Group, Department of Biological Sciences, University of Calgary, Alberta T2N 1N4, Canada.
Frans A A Mulderthe Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747 AG Groningen, The Netherlands, and the Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, University of Aarhus, 8000 Aarhus C, Denmark.
Hans J VogelFrom the Biochemistry Research Group, Department of Biological Sciences, University of Calgary, Alberta T2N 1N4, Canada, vogel@ucalgary.ca.
University of Calgary · CAUniversity of Groningen · NL

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

The periplasmic binding protein (PBP) FepB plays a key role in transporting the catecholate siderophore ferric enterobactin from the outer to the inner membrane in Gram-negative bacteria. The solution structures of the 34-kDa apo- and holo-FepB from Escherichia coli, solved by NMR, represent the first solution structures determined for the type III class of PBPs. Unlike type I and II PBPs, which undergo large "Venus flytrap" conformational changes upon ligand binding, both forms of FepB maintain similar overall folds; however, binding of the ligand is accompanied by significant loop movements. Reverse methyl cross-saturation experiments corroborated chemical shift perturbation results and uniquely defined the binding pocket for gallium enterobactin (GaEnt). NMR relaxation experiments indicated that a flexible loop (residues 225-250) adopted a more rigid and extended conformation upon ligand binding, which positioned residues for optimal interactions with the ligand and the cytoplasmic membrane ABC transporter (FepCD), respectively. In conclusion, this work highlights the pivotal role that structural dynamics plays in ligand binding and transporter interactions in type III PBPs.

Indexed as

Amino Acid SequenceBiological TransportCrystallography, X-RayEnterobactinEscherichia coliEscherichia coli ProteinsLigandsMagnetic Resonance SpectroscopyMembrane Transport ProteinsMolecular Sequence DataPeptide HydrolasesPeriplasmic ProteinsProtein BindingProtein Structure, SecondarySequence Homology, Amino AcidSpectrometry, FluorescenceEnterobactinEscherichia coli ProteinsfepB protein, E coliLigandsMembrane Transport ProteinsPeptide HydrolasesPeriplasmic ProteinsEscherichia coli (E. coli)Ligand-binding ProteinNuclear Magnetic Resonance (NMR)Protein DynamicProtein StructureSiderophore

Identifiers

PMID25173704
PMCPMC4200274
OpenAlexW2071722390

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.