Evidence map›Paper›PMID 11435584›Full record

ArticleJournal of virology2001

Hairpin loop structure in the 3' arm of the influenza A virus virion RNA promoter is required for endonuclease activity.

M B Leahy, H C Dobbyn, G G Brownlee

Abstract read
In one paragraph

Article in Journal of virology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

23 citing papers in PubMed, 41 citations in OpenAlex.

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  7. Single-molecule FRET reveals a corkscrew RNA structure for the polymerase-bound influenza virus promoter.Proceedings of the National Academy of Sciences of the United States of America · 2014
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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

3 authors at 1 institution in 1 country.

M B LeahySir William Dunn School of Pathology, University of Oxford, Oxford, United Kingdom.
H C Dobbyn
G G Brownlee
University of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Previous studies have shown that the 5' arm of the influenza A virus virion RNA promoter requires a hairpin loop structure for efficient endonuclease activity of influenza virus RNA polymerase, an activity that is required for the cap-snatching activity of primers from host pre-mRNA. Here we examine whether a hairpin loop is also required in the 3' arm of the viral RNA promoter. We study point mutations at each nucleotide position (1 to 12) within the 3' arm of the promoter as well as complementary "rescue" mutations which restored base pairing in the stem of a potential hairpin loop. Our results suggest that endonuclease activity is absolutely dependent on the presence of a 3' hairpin loop structure. This is the first direct evidence for RNA secondary structure within the 3' arm being required for a specific stage, i.e., endonuclease cleavage, in the influenza virus replicative cycle.

Indexed as

Promoter Regions, GeneticDNA-Directed RNA PolymerasesHeLa CellsHumansInfluenza A virusNucleic Acid ConformationRNA-Dependent RNA PolymeraseRNA, ViralStructure-Activity RelationshipViral ProteinsVirionDNA-Directed RNA Polymerasesinfluenza virus polymerase basic protein 1PA protein, influenza virusesPB2 protein, Influenzavirus ARNA-Dependent RNA PolymeraseRNA, ViralViral Proteins

Identifiers

PMID11435584
PMCPMC114432
OpenAlexW2139398202

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.