Evidence map›Paper›PMID 22709821›Full record

ArticleEmerging infectious diseases2012

Spike protein fusion peptide and feline coronavirus virulence.

Hui-Wen Chang, Herman F Egberink, Rebecca Halpin, David J Spiro, Peter J M Rottier

Open access · diamondAbstract read
In one paragraph

Article in Emerging infectious diseases, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 136 papers.

0numbers the graph read from it
0cells of the map it votes in
136citing papers in PubMed
17.5field-weighted citation impact, top 1% 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

136 citing papers in PubMed, 200 citations in OpenAlex.

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

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 2 institutions in 2 countries.

Hui-Wen ChangVirology Division, Department of Infectious Diseases and Immunology, Veterinary Faculty, Utrecht University, Utrecht, the Netherlands.
Herman F Egberink
Rebecca Halpin
David J Spiro
Peter J M Rottier
Utrecht University · NLJ. Craig Venter Institute · US

Funding

NIAID NIH HHS HHSN272200900007C
6 · The paper itself

Abstract

Coronaviruses are well known for their potential to change their host or tissue tropism, resulting in unpredictable new diseases and changes in pathogenicity; severe acute respiratory syndrome and feline coronaviruses, respectively, are the most recognized examples. Feline coronaviruses occur as 2 pathotypes: nonvirulent feline enteric coronaviruses (FECVs), which replicate in intestinal epithelium cells, and lethal feline infectious peritonitis viruses (FIPVs), which replicate in macrophages. Evidence indicates that FIPV originates from FECV by mutation, but consistent distinguishing differences have not been established. We sequenced the full genome of 11 viruses of each pathotype and then focused on the single most distinctive site by additionally sequencing hundreds of viruses in that region. As a result, we identified 2 alternative amino acid differences in the putative fusion peptide of the spike protein that together distinguish FIPV from FECV in >95% of cases. By these and perhaps other mutations, the virus apparently acquires its macrophage tropism and spreads systemically.

Indexed as

MutationAmino Acid SequenceAnimalsBase SequenceCatsCoronavirus, FelineCoronavirus InfectionsFeline Infectious PeritonitisGenome, ViralMembrane GlycoproteinsMolecular Sequence DataPeptidesRecombinant Fusion ProteinsSequence AlignmentSequence Analysis, DNASpike Glycoprotein, CoronavirusMembrane GlycoproteinsPeptidesRecombinant Fusion ProteinsSpike Glycoprotein, CoronavirusViral Envelope Proteins

Identifiers

PMID22709821
PMCPMC3376813
OpenAlexW2107258315

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.