Evidence map›Paper›PMID 15308736›Full record

ArticleJournal of virology2004

Role of the C terminus of foamy virus Gag in RNA packaging and Pol expression.

Carolyn R Stenbak, Maxine L Linial

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
1.0field-weighted citation impact, top 29% 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

34 citing papers in PubMed, 42 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

2 authors at 2 institutions in 1 country.

Carolyn R StenbakDivision of Basic Sciences, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, Washington 98109-1024, USA.
Maxine L Linial
Fred Hutch Cancer Center · USUniversity of Washington · US

Funding

VIRAL CODED FUNCTIONS IN ROUS SARCOMA VIRUSR01CA018282 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI LINIAL, MAXINE L · 1985 to 2011
$5.0M
VIRAL ONCOLOGYT32CA009229 · NCI · UNIVERSITY OF WASHINGTON · PI LINIAL, MAXINE L · 1985 to 2007
$3.0M
NCI NIH HHS CA 09229NCI NIH HHS CA 18282NCI NIH HHS R01 CA018282NCI NIH HHS T32 CA009229
6 · The paper itself

Abstract

Foamy viruses (FV) are complex retroviruses that possess several unique features that distinguish them from all other retroviruses. FV Gag and Pol proteins are expressed independently of one another, and both proteins undergo single cleavage events. Thus, the mature FV Gag protein does not consist of the matrix, capsid, and nucleocapsid (NC) proteins found in orthoretroviruses, and the putative NC domain of FV Gag lacks the hallmark Cys-His motifs or I domains. As there is no Gag-Pol fusion protein, the mechanism of Pol packaging is different but unknown. FV RNA packaging is not well understood either. The C terminus of FV Gag has three glycine-arginine motifs (GR boxes), the first of which has been shown to have nucleic acid binding properties in vitro. The role of these GR boxes in RNA packaging and Pol packaging was investigated with a series of Gag C-terminal truncation mutants. GR box 1 was found to be the major determinant of RNA packaging, but all three GR boxes were required to achieve wild-type levels of RNA packaging. In addition, Pol was packaged in the absence of GR box 3, but GR boxes 1 and 2 were required for efficient Pol packaging. Interestingly, the Gag truncation mutants demonstrated decreased Pol expression levels as well as defects in Pol cleavage. Thus, the C terminus of FV Gag was found to be responsible for RNA packaging, as well as being involved in the expression, cleavage, and incorporation of the Pol protein.

Indexed as

Gene Expression Regulation, ViralVirus AssemblyBlotting, WesternCell LineGene Products, gagGene Products, polHumansRNA, ViralSequence DeletionSpumavirusVirionGene Products, gagGene Products, polRNA, Viral

Identifiers

PMID15308736
PMCPMC506921
OpenAlexW1996893301

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.