Evidence map›Paper›PMID 17024183›Full record

ArticleThe EMBO journal2006

Evidence for transmembrane proton transfer in a dihaem-containing membrane protein complex.

M Gregor Madej, Hamid R Nasiri, Nicole S Hilgendorff, Harald Schwalbe, C Roy D Lancaster

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The EMBO journal, 2006. 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
7.9field-weighted citation impact, top 3% 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, 70 citations in OpenAlex.

  1. Article
  2. Functionality of the NaArchives of microbiology · 2023
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  18. Crystal structures of all-alpha type membrane proteins.European biophysics journal : EBJ · 2010
    Review
  19. Article
  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

5 authors at 3 institutions in 1 country.

M Gregor MadejDepartment of Molecular Membrane Biology, Max Planck Institute of Biophysics, Frankfurt am Main, Germany.
Hamid R Nasiri
Nicole S Hilgendorff
Harald Schwalbe
C Roy D Lancaster
Goethe University Frankfurt · DEMax Planck Society · DEMax Planck Institute of Biophysics · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Membrane protein complexes can support both the generation and utilisation of a transmembrane electrochemical proton potential ('proton-motive force'), either by transmembrane electron transfer coupled to protolytic reactions on opposite sides of the membrane or by transmembrane proton transfer. Here we provide the first evidence that both of these mechanisms are combined in the case of a specific respiratory membrane protein complex, the dihaem-containing quinol:fumarate reductase (QFR) of Wolinella succinogenes, so as to facilitate transmembrane electron transfer by transmembrane proton transfer. We also demonstrate the non-functionality of this novel transmembrane proton transfer pathway ('E-pathway') in a variant QFR where a key glutamate residue has been replaced. The 'E-pathway', discussed on the basis of the 1.78-Angstrom-resolution crystal structure of QFR, can be concluded to be essential also for the viability of pathogenic epsilon-proteobacteria such as Helicobacter pylori and is possibly relevant to proton transfer in other dihaem-containing membrane proteins, performing very different physiological functions.

Indexed as

ProtonsBacterial ProteinsBiological TransportCrystallography, X-RayElectron TransportHelicobacter pyloriMembrane ProteinsOxidoreductasesProtein Structure, TertiaryProton PumpsSpecies SpecificityWolinellaBacterial ProteinsMembrane ProteinsOxidoreductasesProton PumpsProtonsquinol fumarate reductase

Identifiers

PMID17024183
PMCPMC1618101
OpenAlexW2044272839

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.