Evidence map›Paper›PMID 10982363›Full record

ArticleJournal of virology2000

Yeast three-hybrid screening of rous sarcoma virus mutants with randomly mutagenized minimal packaging signals reveals regions important for gag interactions.

E G Lee, M L Linial

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.3field-weighted citation impact, top 10% 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

12 citing papers in PubMed, 20 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 1 institution in 1 country.

E G LeeDivision of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA.
M L Linial
Fred Hutch Cancer Center · 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 18282NCI NIH HHS R01 CA018282NCI NIH HHS T32 CA009229NCI NIH HHS T32CA09229
6 · The paper itself

Abstract

We previously showed that the yeast three-hybrid system provides a genetic assay of both RNA and protein components for avian retroviral RNA encapsidation. In the current study, we used this assay to precisely define cis-acting determinants involved in avian leukosis sarcoma virus packaging RNA binding to Gag protein. In vivo screening of Rous sarcoma virus mutants was performed with randomly mutated minimal packaging sequences (MPsi) made using PCR amplification after cotransformation with GagDeltaPR protein into yeast cells. Colonies with low beta-galactosidase activity were analyzed to locate mutations in MPsi sequences affecting binding to Gag proteins. This genetic assay delineated secondary structural elements that are important for efficient RNA binding, including a single-stranded small bulge containing the initiation codon for uORF3, as well as adjacent stem structures. This implies a possible tertiary structure favoring the high-affinity binding sites for Gag. In most cases, results from the three-hybrid assay were well correlated with those from the viral RNA packaging assays. The results from random mutagenesis using the rapid three-hybrid binding assay are consistent with those from site-directed mutagenesis using in vivo packaging assays.

Indexed as

Biological AssayGenes, gagAvian Sarcoma VirusesMutationSaccharomyces cerevisiae

Identifiers

PMID10982363
PMCPMC102115
OpenAlexW2165256239

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.