Evidence map›Paper›PMID 22022269›Full record

ArticlePLoS pathogens2011

The DEAD-box RNA helicase DDX6 is required for efficient encapsidation of a retroviral genome.

Shuyuarn F Yu, Phillip Lujan, Dana L Jackson, Michael Emerman, Maxine L Linial

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
11.5field-weighted citation impact, top 2% 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

42 citing papers in PubMed, 53 citations in OpenAlex.

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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 1 institution in 1 country.

Shuyuarn F YuDivision of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America.
Phillip Lujan
Dana L Jackson
Michael Emerman
Maxine L Linial
Fred Hutch Cancer Center · US

Funding

Undergraduate Student Training in Cancer ResearchU54CA132383 · NCI · NEW MEXICO STATE UNIVERSITY LAS CRUCES · PI MICHELE Irene SHUSTER · 2007 to 2026
$21.4M
VIRAL CODED FUNCTIONS IN ROUS SARCOMA VIRUSR01CA018282 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI LINIAL, MAXINE L · 1985 to 2011
$5.0M
NCI NIH HHS R01 CA 018282NCI NIH HHS R01 CA018282NCI NIH HHS U54 CA132383
6 · The paper itself

Abstract

Viruses have to encapsidate their own genomes during the assembly process. For most RNA viruses, there are sequences within the viral RNA and virion proteins needed for high efficiency of genome encapsidation. However, the roles of host proteins in this process are not understood. Here we find that the cellular DEAD-box RNA helicase DDX6 is required for efficient genome packaging of foamy virus, a spumaretrovirus. After infection, a significant amount of DDX6, normally concentrated in P bodies and stress granules, re-localizes to the pericentriolar site where viral RNAs and Gag capsid proteins are concentrated and capsids are assembled. Knockdown of DDX6 by siRNA leads to a decreased level of viral nucleic acids in extracellular particles, although viral protein expression, capsid assembly and release, and accumulation of viral RNA and Gag protein at the assembly site are little affected. DDX6 does not interact stably with Gag proteins nor is it incorporated into particles. However, we find that the ATPase/helicase motif of DDX6 is essential for viral replication. This suggests that the ATP hydrolysis and/or the RNA unwinding activities of DDX6 function in moderating the viral RNA conformation and/or viral RNA-Gag ribonucleoprotein complex in a transient manner to facilitate incorporation of the viral RNA into particles. These results reveal a unique role for a highly conserved cellular protein of RNA metabolism in specifically re-locating to the site of viral assembly for its function as a catalyst in retroviral RNA packaging.

Indexed as

Genome, ViralVirus AssemblyAdenosine TriphosphateCapsid ProteinsCell LineDEAD-box RNA HelicasesGene Products, gagHEK293 CellsHumansProto-Oncogene ProteinsRNA InterferenceRNA, Small InterferingRNA, ViralSpumavirusViral ProteinsAdenosine TriphosphateCapsid ProteinsDDX6 protein, humanDEAD-box RNA HelicasesGene Products, gagProto-Oncogene ProteinsRNA, Small InterferingRNA, ViralViral Proteins

Identifiers

PMID22022269
PMCPMC3192847
OpenAlexW2054226654

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.