Evidence map›Paper›PMID 20392846›Full record

ArticleJournal of virology2010

DDX6 (Rck/p54) is required for efficient hepatitis C virus replication but not for internal ribosome entry site-directed translation.

Rohit K Jangra, MinKyung Yi, Stanley M Lemon

Open access · greenAbstract 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 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
6.9field-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

72 citing papers in PubMed, 107 citations in OpenAlex.

  1. Review
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  10. Eukaryotic mRNA Decapping Activation.Frontiers in genetics · 2022
    Review
  11. Article
  12. Effect of P-body component Mov10 on HCV virus production and infectivity.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Article
  13. Article
  14. Strategies for Success. Viral Infections and Membraneless Organelles.Frontiers in cellular and infection microbiology · 2019
    Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Review
  20. Article

12 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.

Rohit K JangraCenter for Hepatitis Research, Institute for Human Infections and Immunity, and Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas 77555-0610, USA.
MinKyung Yi
Stanley M Lemon
The University of Texas Medical Branch at Galveston · US

Funding

Virus-Host Interactions in Hepatitis C Virus (HCV) InfectionsU19AI040035 · NIAID · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI LANFORD, ROBERT E · 1996 to 2009
$12.0M
UK SPORE in Gastrointestinal CancerP20CA150343 · NCI · UNIVERSITY OF KENTUCKY · PI EVERS, BERNARD MARK · 2009 to 2011
$1.5M
NCI NIH HHS P20 CA150343NCI NIH HHS P20-CA150343NIAID NIH HHS N01 AI040035NIAID NIH HHS U19 AI040035NIAID NIH HHS U19-AI40035
6 · The paper itself

Abstract

DDX6 (Rck/p54) is an evolutionarily conserved member of the SF2 DEAD-box RNA helicase family that contributes to the regulation of translation and storage and the degradation of cellular mRNAs. It interacts with multiple proteins and is a component of the micro-RNA (miRNA)-induced silencing complex (miRISC). Since miRNA-122 (miR-122) is essential for efficient hepatitis C virus (HCV) replication, we investigated the requirement for DDX6 in HCV replication in cultured hepatoma cells. Small interfering RNA (siRNA)-mediated knockdown of DDX6 and rescue with an siRNA-resistant mutant demonstrated that DDX6 expression is indeed required for optimal HCV replication. However, DDX6 knockdown did not impair miR-122 biogenesis or alter HCV responsiveness to miR-122 supplementation. Overexpression of DDX6 fused to EYFP (EYFP-DDX6) enhanced replication, whereas a helicase-deficient mutant with a substitution in the conserved DEAD-box motif II (DQAD) had a dominant-negative effect, reducing HCV yields. Coimmunoprecipitation experiments revealed an intracellular complex containing DDX6, HCV core protein, and both viral and cellular RNAs, the formation of which was dependent upon the C-terminal domain of DDX6 but not DDX6 helicase activity. However, since DDX6 abundance influenced the replication of subgenomic HCV RNAs lacking core sequence, the relevance of this complex is uncertain. Importantly, DDX6 knockdown caused minimal reductions in cellular proliferation, generally stimulated cellular translation ([(35)S]Met incorporation), and did not impair translation directed by the HCV internal ribosome entry site. Thus, DDX6 helicase activity is essential for efficient HCV replication, reflecting essential roles for DDX6 in HCV genome amplification and/or maintenance of cellular homeostasis.

Indexed as

Protein BiosynthesisVirus ReplicationCell LineDEAD-box RNA HelicasesGene Knockdown TechniquesHepacivirusHepatocytesHumansImmunoprecipitationMicroRNAsProto-Oncogene ProteinsRibosomesRNA, ViralDDX6 protein, humanDEAD-box RNA HelicasesMicroRNAsMIRN122 microRNA, humanProto-Oncogene ProteinsRNA, Viral

Identifiers

PMID20392846
PMCPMC2903299
OpenAlexW2143121090

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.