Evidence map›Paper›PMID 20631125›Full record

ArticleJournal of virology2010

Evidence for avian and human host cell factors that affect the activity of influenza virus polymerase.

Olivier Moncorgé, Manuela Mura, Wendy S Barclay

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
4.7field-weighted citation impact, top 5% 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

64 citing papers in PubMed, 94 citations in OpenAlex.

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  10. Host Cell Factors That Interact with Influenza Virus Ribonucleoproteins.Cold Spring Harbor perspectives in medicine · 2021
    Review
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  14. Review
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4 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

3 authors at 1 institution in 1 country.

Olivier MoncorgéDepartment of Virology, Division of Infectious Diseases, Imperial College London, Wright Fleming Institute, Norfolk Place, W2 1PG London, UK.
Manuela Mura
Wendy S Barclay
Imperial College London · GB

Funding

Medical Research Council G0600006
6 · The paper itself

Abstract

Typical avian influenza A viruses do not replicate efficiently in humans. The molecular basis of host range restriction and adaptation of avian influenza A viruses to a new host species is still not completely understood. Genetic determinants of host range adaptation have been found on the polymerase complex (PB1, PB2, and PA) as well as on the nucleoprotein (NP). These four viral proteins constitute the minimal set for transcription and replication of influenza viral RNA. It is widely documented that in human cells, avian-derived influenza A viral polymerase is poorly active, but despite extensive study, the reason for this blockade is not known. We monitored the activity of influenza A viral polymerases in heterokaryons formed between avian (DF1) and human (293T) cells. We have discovered that a positive factor present in avian cells enhances the activity of the avian influenza virus polymerase. We found no evidence for the existence of an inhibitory factor for avian virus polymerase in human cells, and we suggest, instead, that the restriction of avian influenza virus polymerases in human cells is the consequence of the absence or the low expression of a compatible positive cofactor. Finally, our results strongly suggest that the well-known adaptative mutation E627K on viral protein PB2 facilitates the ability of a human positive factor to enhance replication of influenza virus in human cells.

Indexed as

AlphainfluenzavirusAmino Acid SubstitutionAnimalsBirdsCell FusionCell LineGenes, ViralHost-Pathogen InteractionsHumansInfluenza, HumanInfluenza in BirdsMutation, MissenseRNA-Dependent RNA PolymeraseViral ProteinsVirus Replicationinfluenza virus polymerase basic protein 1PA protein, influenza virusesPB2 protein, Influenzavirus ARNA-Dependent RNA PolymeraseViral Proteins

Identifiers

PMID20631125
PMCPMC2937815
OpenAlexW2166252594

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.