Evidence map›Paper›PMID 11806902›Full record

ArticleBiophysical journal2002

Functional motions of influenza virus hemagglutinin: a structure-based analytical approach.

Basak Isin, Pemra Doruker, Ivet Bahar

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.5field-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

29 citing papers in PubMed, 86 citations in OpenAlex.

  1. Article
  2. Article
  3. COVID-19: Myths and Reality.Biochemistry. Biokhimiia · 2021
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Integrated Computational Approaches and Tools forAllosteric Drug Discovery.International journal of molecular sciences · 2020
    Review
  9. Article
  10. Article
  11. Order and disorder control the functional rearrangement of influenza hemagglutinin.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  12. Article
  13. Review
  14. Article
  15. Molecular basis of the structure and function of H1 hemagglutinin of influenza virus.Proceedings of the Japan Academy. Series B, Physical and biological sciences · 2012
    Review
  16. Article
  17. Article
  18. Article
  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

3 authors at 2 institutions in 2 countries.

Basak IsinPolymer Research Center and Chemical Engineering Department, Bogazici University, Bebek 80815, Istanbul, Turkey.
Pemra Doruker
Ivet Bahar
University of Pittsburgh · USBoğaziçi University · TR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Influenza virus hemagglutinin (HA), a homotrimeric integral membrane glycoprotein essential for viral infection, is engaged in two biological functions: recognition of target cells' receptor proteins and fusion of viral and endosomal membranes, both requiring substantial conformational flexibility from the part of the glycoprotein. The different modes of collective motions underlying the functional mobility/adaptability of the protein are determined in the present study using an extension of the Gaussian network model (GNM) to treat concerted anisotropic motions. We determine the molecular mechanisms that may underlie HA function, along with the structural regions or residues whose mutations are expected to impede function. Good agreement between theoretically predicted fluctuations of individual residues and corresponding x-ray crystallographic temperature factors is found, which lends support to the GNM elucidation of the conformational dynamics of HA by focusing upon a subset of dominant modes. The lowest frequency mode indicates a global torsion of the HA trimer about its longitudinal axis, accompanied by a substantial mobility at the viral membrane connection. This mode is proposed to constitute the dominant molecular mechanism for the translocation and aggregation of HAs, and for the opening and dilation of the fusion pore. The second and third collective modes indicate a global bending, allowing for a large lateral surface exposure, which is likely to facilitate the close association of the viral and endosomal membranes before pore opening. The analysis of kinetically hot residues, in contrast, reveals a localization of energy centered around the HA2 residue Asp112, which apparently triggers the solvent exposure of the fusion peptide.

Indexed as

AnisotropyAspartic AcidCrystallography, X-RayDimerizationHemagglutininsHydrogen-Ion ConcentrationKineticsModels, MolecularModels, TheoreticalNormal DistributionOrthomyxoviridaePeptidesProtein ConformationProtein FoldingProtein Structure, SecondaryProtein TransportAspartic AcidHemagglutininsPeptides

Identifiers

PMID11806902
PMCPMC1301869
OpenAlexW2123123142

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.