Evidence map›Paper›PMID 8107217›Full record

ArticleJournal of virology1994

Internal translation initiation on poliovirus RNA: further characterization of La function in poliovirus translation in vitro.

Y V Svitkin, K Meerovitch, H S Lee, J N Dholakia, D J Kenan, V I Agol, N Sonenberg

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In one paragraph

Article in Journal of virology, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed
14.2field-weighted citation impact, top 1% 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

76 citing papers in PubMed, 146 citations in OpenAlex.

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  16. The current status of vertebrate cellular mRNA IRESs.Cold Spring Harbor perspectives in biology · 2013
    Review
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16 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

7 authors at 1 institution in 1 country.

Y V SvitkinDepartment of Biochemistry, McGill University, Montreal, Quebec, Canada.
K Meerovitch
H S Lee
J N Dholakia
D J Kenan
V I Agol
N Sonenberg
McGill University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Initiation of poliovirus RNA translation by internal entry of ribosomes is believed to require the participation of trans-acting factors. The mechanism of action of these factors is poorly defined. The limiting amount of one of these factors, La protein, in rabbit reticulocyte lysates (RRL) has been postulated to partially explain the inefficient translation of poliovirus RNA in this system. To further characterize La activity in translation and to identify other potential limiting factors, we assayed the ability of La protein as well as purified initiation factors, eIF-2, guanine nucleotide exchange factor (GEF), eIF-4A, eIF-4B, eIF-4F, and eIF-3, to stimulate the synthesis of P1, the capsid precursor protein, in poliovirus type 1 (Mahoney) RNA-programmed RRL. Of the proteins tested, only La, GEF, and to some extent eIF-2 stimulated the synthesis of P1. The enhanced translation of P1 in response to La occurred concomitantly with the inhibition of synthesis of most aberrant polypeptides, resulting from initiation in the middle of the genome. Deletion of the carboxy-terminal half (214 amino acids) of La did not decrease its binding to the poliovirus 5' untranslated region but abrogated the stimulatory and correcting activity in translation. In contrast to La, GEF and eIF-2 stimulated the overall translation and increased the synthesis of aberrant products as well as P1. Neither La, GEF, nor any other factor stimulated translation of encephalomyocarditis virus RNA in RRL. The implications of these findings for the mechanism of internal translation initiation on picornavirus RNAs are discussed.

Indexed as

AnimalsAutoantigensCell-Free SystemEukaryotic Initiation Factor-2Guanine Nucleotide Exchange FactorsMutationPeptide Chain Initiation, TranslationalPeptide Initiation FactorsPoliovirusProtein BiosynthesisProteinsRabbitsReticulocytesRibonucleoproteinsSequence DeletionSS-B AntigenAutoantigensEukaryotic Initiation Factor-2Guanine Nucleotide Exchange FactorsPeptide Initiation FactorsProteinsRibonucleoproteinsSS-B Antigen

Identifiers

PMID8107217
PMCPMC236611
OpenAlexW1698462240

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.