Evidence map›Paper›PMID 21546549›Full record

ArticleNucleic acids research2011

SHAPE analysis of the FIV Leader RNA reveals a structural switch potentially controlling viral packaging and genome dimerization.

Julia C Kenyon, Sian J Tanner, Michal Legiewicz, Pretty S Phillip, Tahir A Rizvi, Stuart F J Le Grice, Andrew M L Lever

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

29 citing papers in PubMed, 38 citations in OpenAlex.

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  19. Current perspectives on RNA secondary structure probing.Biochemical Society transactions · 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

7 authors at 3 institutions in 3 countries.

Julia C KenyonUniversity of Cambridge Department of Medicine, Box 157, Level 5 Addenbrooke's Hospital, Hills Rd, Cambridge, CB20QQ, UK.
Sian J Tanner
Michal Legiewicz
Pretty S Phillip
Tahir A Rizvi
Stuart F J Le Grice
Andrew M L Lever
United Arab Emirates University · AEAddenbrooke's Hospital · GBUniversity of Cambridge · GB

Funding

Nucleic Acid Footprinting and development of small molecule antagonistsZIABC010493 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI LE GRICE, STUART F. J. · 2009 to 2021
$9.3M
Intramural NIH HHSMedical Research Council G0800142Wellcome Trust 078007/Z/05/Z
6 · The paper itself

Abstract

Feline immunodeficiency virus (FIV) infects many species of cat, and is related to HIV, causing a similar pathology. High-throughput selective 2' hydroxyl acylation analysed by primer extension (SHAPE), a technique that allows structural interrogation at each nucleotide, was used to map the secondary structure of the FIV packaging signal RNA. Previous studies of this RNA showed four conserved stem-loops, extensive long-range interactions (LRIs) and a small, palindromic stem-loop (SL5) within the gag open reading frame (ORF) that may act as a dimerization initiation site (DIS), enabling the virus to package two copies of its genome. Our analyses of wild-type (wt) and mutant RNAs suggest that although the four conserved stem-loops are static structures, the 5' and 3' regions previously shown to form LRI also adopt an alternative, yet similarly conserved conformation, in which the putative DIS is occluded, and which may thus favour translational and splicing functions over encapsidation. SHAPE and in vitro dimerization assays were used to examine SL5 mutants. Dimerization contacts appear to be made between palindromic loop sequences in SL5. As this stem-loop is located within the gag ORF, recognition of a dimeric RNA provides a possible mechanism for the specific packaging of genomic over spliced viral RNAs.

Indexed as

5' Untranslated RegionsRegulatory Sequences, Ribonucleic AcidVirus AssemblyBase SequenceDimerizationElectrophoresis, Polyacrylamide GelGenome, ViralImmunodeficiency Virus, FelineMolecular Probe TechniquesMolecular Sequence DataNucleic Acid ConformationRNA, Viral5' Untranslated RegionsRegulatory Sequences, Ribonucleic AcidRNA, Viral

Identifiers

PMID21546549
PMCPMC3159445
OpenAlexW2042899361

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.