Evidence map›Paper›PMID 18508886›Full record

ArticleJournal of virology2008

Asparagine 631 variants of the chicken Mx protein do not inhibit influenza virus replication in primary chicken embryo fibroblasts or in vitro surrogate assays.

Camilla T O Benfield, Jon W Lyall, Georg Kochs, Laurence S Tiley

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
5.0field-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

39 citing papers in PubMed, 78 citations in OpenAlex.

  1. Review
  2. Article
  3. Antiviral Effects of Avian Interferon-Stimulated Genes.Animals : an open access journal from MDPI · 2024
    Review
  4. Article
  5. Article
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  8. Biomedicines · 2022
    Article
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  18. Review
  19. Identification ofJournal, genetic engineering & biotechnology · 2018
    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

4 authors at 2 institutions in 2 countries.

Camilla T O BenfieldDepartment of Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge CB3 OES, United Kingdom.
Jon W Lyall
Georg Kochs
Laurence S Tiley
University of Cambridge · GBUniversity of Freiburg · DE

Funding

Biotechnology and Biological Sciences Research Council BB/G00479X/1Biotechnology and Biological Sciences Research Council BBS/B/00239Biotechnology and Biological Sciences Research Council BSB/B/00301
6 · The paper itself

Abstract

Whether chicken Mx inhibits influenza virus replication is an important question with regard to strategies aimed at enhancing influenza resistance in domestic flocks. The Asn631 polymorphism of the chicken Mx protein found in the Shamo (SHK) chicken line was previously reported to be crucial for the antiviral activity of this highly polymorphic chicken gene. Our aims were to determine whether cells from commercial chicken lines containing Asn631 alleles were resistant to influenza virus infection and to investigate the effects that other polymorphisms might have on Mx function. Unexpectedly, we found that the Asn631 genotype had no impact on multicycle replication of influenza virus (A/WSN/33 [H1N1]) in primary chicken embryo fibroblast lines. Furthermore, expression of the Shamo (SHK) chicken Mx protein in transfected 293T cells did not inhibit viral gene expression (A/PR/8/34 [H1N1], A/Duck/England/62 [H4N6], and A/Duck/Singapore/97 [H5N3]). Lastly, in minireplicon systems (A/PR/8/34 and A/Turkey/England/50-92/91 [H5N1]), which were highly sensitive to inhibition by the murine Mx1 and human MxA proteins, respectively, Shamo chicken Mx also proved ineffective in the context of avian as well as mammalian cell backgrounds. Our findings demonstrate that Asn631 chicken Mx alleles do not inhibit influenza virus replication of the five strains tested here and efforts to increase the frequency of Asn631 alleles in commercial chicken populations are not warranted. Nevertheless, chicken Mx variants with anti-influenza activity might still exist. The flow cytometry and minireplicon assays described herein could be used as efficient functional screens to identify such active chicken Mx alleles.

Indexed as

Polymorphism, GeneticVirus ReplicationAnimalsCell LineCells, CulturedChick EmbryoFibroblastsFlow CytometryGTP-Binding ProteinsHumansInfluenza A virusMyxovirus Resistance ProteinsRepliconSequence Analysis, DNAGTP-Binding ProteinsMX1 protein, humanMyxovirus Resistance Proteins

Identifiers

PMID18508886
PMCPMC2493316
OpenAlexW2150418005

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.