Evidence map›Paper›PMID 22286608›Full record

ArticleVirus genes2012

Evolution and adaptation of hemagglutinin gene of human H5N1 influenza virus.

Kaifa Wei, Yanfeng Chen, Juan Chen, Lingjuan Wu, Daoxin Xie

Abstract read
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In one paragraph

Article in Virus genes, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
–field-weighted citation impact
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

13 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Evolution and Vaccination of Influenza Virus.Journal of computational biology : a journal of computational molecular cell biology · 2017
    Article
  5. Article
  6. Article
  7. Evolutionary history of Ebola virus.Epidemiology and infection · 2014
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Genome-wide analysis of bZIP-encoding genes in maize.DNA research : an international journal for rapid publication of reports on genes and genomes · 2012
    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.

Kaifa WeiDepartment of Biological Sciences and Biotechnology, Zhangzhou Normal University, 36 Xian-Qian-Zhi Street, Zhangzhou, 363000, Fujian, China. kaifa-wei@163.com
Yanfeng Chen
Juan Chen
Lingjuan Wu
Daoxin Xie

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The H5N1 HPAI virus has brought heavy loss to poultry industry. Although, there exists limited human-to-human transmission, it poses potential serious risks to public health. HA is responsible for receptor-binding and membrane-fusion and contains the host receptor-binding sites and major epitopes for neutralizing antibodies. To investigate molecular adaption of HPAI H5N1 viruses, we performed a phylogenetic analysis of HA sequences with 240 HPAI virus strains isolated from human. The topology of the tree reveals overall clustering of strains in four major clusters based on geographic location, and shows antigenic diversity of HA of human H5N1 isolates co-circulating in Asia, Africa, and Europe. The four clusters possess distinct features within the cleavage site and glycosylation sites, respectively. We identified six sites apparently evolving under positive selection, five of which persist in the population. Three positively selected sites are found to be located either within or flanking the receptor-binding sites, suggesting that selection at these sites may increase the affinity to human-type receptor. Furthermore, some sites are also associated with glycosylation and antigenic changes. In addition, two sites are found to be selected differentially in the two clusters. The analyses provide us deep insight into the adaptive evolution of human H5N1 viruses, show us several candidate mutations that could cause a pandemic, and suggest that efficiency measures should be taken to deal with potential risks.

Indexed as

Adaptation, BiologicalAfricaAsiaCluster AnalysisEuropeEvolution, MolecularGenetic VariationHemagglutinin Glycoproteins, Influenza VirusHumansInfluenza A Virus, H5N1 SubtypeInfluenza, HumanPhylogeographySelection, GeneticSequence Analysis, DNAUnited StatesHemagglutinin Glycoproteins, Influenza Virus

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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.