Evidence map›Paper›PMID 22549831›Full record

ArticleNature communications2012

Adaptive mutations in NEP compensate for defective H5N1 RNA replication in cultured human cells.

Benjamin Mänz, Linda Brunotte, Peter Reuther, Martin Schwemmle

Open access · bronzeAbstract read
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In one paragraph

Article in Nature communications, 2012. 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
11.3field-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

90 citing papers in PubMed, 145 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Benjamin MänzDepartment of Virology, Institute for Medical Microbiology and Hygiene, University of Freiburg, 79104, Germany.
Linda Brunotte
Peter Reuther
Martin Schwemmle
Institute of Medical Microbiology and Hygiene · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Infection of mammals by avian influenza viruses requires adaptive mutations to achieve high-level replication in the new host. However, the basic mechanism underlying this adaptation process is still unknown. Here we show that avian polymerases, lacking the human signature PB2-E627K, are incapable of generating usable complementary RNA templates in cultured human cells and therefore require adaptation. Characterization of the highly pathogenic human H5N1 isolate A/Thailand/1(KAN-1)/2004 that retained the avian PB2-E627 reveals that the defect in RNA replication is only partially compensated by mutations in the polymerase. Instead, mutations in the nuclear export protein are required for efficient polymerase activity. We demonstrate that adaptive mutations in nuclear export proteins of several human isolates enhance the polymerase activity of avian polymerases in human cultured cells. In conclusion, when crossing the species barrier, avian influenza viruses acquire adaptive mutations in nuclear export protein to escape restricted viral genome replication in mammalian cells.

Indexed as

Mutation, MissenseVirus ReplicationAmino Acid SubstitutionAnimalsCell LineFemaleHumansInfluenza A Virus, H5N1 SubtypeInfluenza, HumanMiceMice, Inbred BALB CMolecular Sequence DataRNA-Dependent RNA PolymeraseSequence AlignmentViral Nonstructural ProteinsViral ProteinsNS2 protein, influenza virus APB2 protein, Influenzavirus ARNA-Dependent RNA PolymeraseViral Nonstructural ProteinsViral Proteins

Identifiers

PMID22549831
OpenAlexW1997423857

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.