Evidence map›Paper›PMID 19898475›Full record

ArticleNature structural & molecular biology2009

Solution structure and functional analysis of the influenza B proton channel.

Junfeng Wang, Rafal M Pielak, Mark A McClintock, James J Chou

Abstract read
In one paragraph

Article in Nature structural & molecular biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
8.5field-weighted citation impact, top 2% 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

71 citing papers in PubMed, 151 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Activation of the influenza B M2 proton channel (BM2).bioRxiv : the preprint server for biology · 2024
    Article
  7. Article
  8. Review
  9. Characterization of the SARS-CoV-2 E Protein: Sequence, Structure, Viroporin, and Inhibitors.Protein science : a publication of the Protein Society · 2021
    Review
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review

11 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Junfeng WangDepartment of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA.
Rafal M Pielak
Mark A McClintock
James J Chou
Harvard University · US

Funding

Structural Determinants of TCR Assembly and SignalingR01AI054520 · NIAID · DANA-FARBER CANCER INSTITUTE · PI WUCHERPFENNIG, KAI W · 2003 to 2013
$4.0M
Structural basis for influenza amantadine-resistanceR01AI067438 · NIAID · HARVARD MEDICAL SCHOOL · PI CHOU, JAMES JEIWEN · 2006 to 2010
$1.6M
NIAID NIH HHS AI054520NIAID NIH HHS R01 AI054520NIAID NIH HHS R01 AI067438
6 · The paper itself

Abstract

Influenza B virus contains an integral membrane protein, BM2, that oligomerizes in the viral membrane to form a pH-activated proton channel. Here we report the solution structures of both the membrane-embedded channel domain and the cytoplasmic domain of BM2. The channel domain assumes a left-handed coiled-coil tetramer formation with a helical packing angle of -37 degrees to form a polar pore in the membrane for conducting ions. Mutagenesis and proton flux experiments identified residues involved in proton relay and suggest a mechanism of proton conductance. The cytoplasmic domain of BM2 also forms a coiled-coil tetramer. It has a bipolar charge distribution, in which a negatively charged region interacts specifically with the M1 matrix protein that is involved in packaging the genome in the virion. This interaction suggests BM2 also recruits matrix proteins to the cell surface during virus budding, making BM2 an unusual membrane protein with the dual roles of conducting ions and recruiting proteins to the membrane.

Indexed as

Influenza B virusModels, BiologicalModels, MolecularMutagenesis, Site-DirectedNuclear Magnetic Resonance, BiomolecularProtein MultimerizationProtein Structure, QuaternaryProtonsViral Matrix ProteinsViral ProteinsBM2 polypeptide, influenza B virusM1 matrix protein, influenza B virusProtonsViral Matrix ProteinsViral Proteins

Identifiers

PMID19898475
PMCPMC3148584
OpenAlexW2084242773

What OpenQuestion holds

Textmetadata
LicenceTDM
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.