Evidence map›Paper›PMID 14645568›Full record

ArticleJournal of virology2003

Evolution of human calicivirus RNA in vivo: accumulation of mutations in the protruding P2 domain of the capsid leads to structural changes and possibly a new phenotype.

Mikael Nilsson, Kjell-Olof Hedlund, Margareta Thorhagen, Göran Larson, Kari Johansen, Anders Ekspong, Lennart Svensson

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.

0numbers the graph read from it
0cells of the map it votes in
90citing papers in PubMed
5.4field-weighted citation impact, top 4% 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

90 citing papers in PubMed, 213 citations in OpenAlex.

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  16. IRAM: virus capsid database and analysis resource.Database : the journal of biological databases and curation · 2019
    Article
  17. Immune Response Modulation by Caliciviruses.Frontiers in immunology · 2019
    Review
  18. Structural basis for murine norovirus engagement of bile acids and the CD300lf receptor.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  19. Article
  20. Article

30 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

7 authors at 3 institutions in 1 country.

Mikael NilssonDepartment of Virology, Swedish Institute for Infectious Disease Control, 171 82 Solna, Sweden.
Kjell-Olof Hedlund
Margareta Thorhagen
Göran Larson
Kari Johansen
Anders Ekspong
Lennart Svensson
Linköping University · SESundsvall Municipality · SESwedish Institute · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the present study we report on evolution of calicivirus RNA from a patient with chronic diarrhea (i.e., lasting >2 years) and viral shedding. Partial sequencing of open reading frame 1 (ORF1) from 12 consecutive isolates revealed shedding of a genogroup II virus with relatively few nucleotide changes during a 1-year period. The entire capsid gene (ORF2) was also sequenced from the same isolates and found to contain 1,647 nucleotides encoding a protein of 548 amino acids with similarities to the Arg320 and Mx strains. Comparative sequence analysis of ORF2 revealed 32 amino acid changes during the year. It was notable that the vast majority of the cumulative amino acid changes (8 of 11) appeared within residues 279 to 405 located within the hypervariable domain (P2) of the capsid protein and hence were subject to immune pressure. An interesting and novel observation was that the accumulated amino acid changes in the P2 domain resulted in predicted structural changes, including disappearance of a helix structure, and thus a possible emergence of a new phenotype. FUT2 gene polymorphism characterization revealed that the patient is heterozygous at nucleotide 428 and thus Secretor(+), a finding in accordance with the hypothesis of FUT2 gene polymorphism and calicivirus susceptibility. To our knowledge, this is the first report of RNA evolution of calicivirus in a single individual, and our data suggest an immunity-driven mechanism for viral evolution. We also report on chronic virus excretion, immunoglobulin treatment, and modification of clinical symptoms; our observations from these studies, together with the FUT2 gene characterization, may lead to a better understanding of calicivirus pathogenesis.

Indexed as

Evolution, MolecularMutationAmino Acid SequenceCaliciviridae InfectionsCapsidCapsid ProteinsChronic DiseaseDiarrheaDNA-Directed RNA PolymerasesFucosyltransferasesGalactoside 2-alpha-L-fucosyltransferaseGenetic Predisposition to DiseaseHumansMaleMolecular Sequence DataNorovirusCapsid ProteinsDNA-Directed RNA PolymerasesFucosyltransferasesGalactoside 2-alpha-L-fucosyltransferaseRNA, Viral

Identifiers

PMID14645568
PMCPMC296070
OpenAlexW2069870355

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.