Evidence map›Paper›PMID 16273393›Full record

ReviewPflugers Archiv : European journal of physiology2006

Amt/MEP/Rh proteins conduct ammonia.

Fritz K Winkler

Abstract readReview
PubMed Publisher
In one paragraph

Review in Pflugers Archiv : European journal of physiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
6.5field-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

36 citing papers in PubMed, 84 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Genomic Insights of "Frontiers in microbiology · 2020
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Applied and environmental microbiology · 2016
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Biotechnology reports (Amsterdam, Netherlands) · 2015
    Article
  17. Human SLC4A11 Is a Novel NH3/H+ Co-transporter.The Journal of biological chemistry · 2015
    Article
  18. Article
  19. Direct observation of electrogenic NH4(+) transport in ammonium transport (Amt) proteins.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  20. 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

1 author at 1 institution in 1 country.

Fritz K WinklerStructural Biology, Biomolecular Research, Paul Scherrer Institut, 5232 Villigen, Switzerland. fritz.winkler@psi.ch
Paul Scherrer Institute · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The structure determination of the ammonium transport protein AmtB from Escherichia coli strongly indicates that the members of the ubiquitous ammonium transporter/methylamine permease/Rhesus (Amt/MEP/Rh) protein family are ammonia-conducting channels rather than ammonium ion transporters. The most conserved part of these proteins, apart from the common overall structure with 11 transmembrane helices, is the pore lined by hydrophobic side chains except for two highly conserved histidine residues. A high-affinity ion-binding site specific for ammonium is present at the extracellular pore entry of the Amt/MEP proteins. It is proposed to play an important role in enhancing net transport at very low external ammonium concentrations and to provide discrimination against water. The site is not conserved in the animal Rhesus proteins which are implicated in ammonium homeostasis and saturate at millimolar ammonium concentrations. Many aspects of the biological function of these ammonia channels are still poorly understood and further studies in cellular systems are needed. Likewise, studies with purified, reconstituted Amt/MEP/Rh proteins will be needed to resolve open mechanistic questions and gain a more quantitative understanding of the conduction mechanism in general and for different subfamily representatives.

Indexed as

AmmoniaCation Transport ProteinsEscherichia coliEscherichia coli ProteinsModels, MolecularProtein ConformationAmmoniaAmtB protein, E coliCation Transport ProteinsEscherichia coli Proteins

Identifiers

PMID16273393
OpenAlexW2120896104

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.