Evidence map›Paper›PMID 18568365›Full record

ArticleMolecular genetics and genomics : MGG2008

Synthetic lethality between eIF5A and Ypt1 reveals a connection between translation and the secretory pathway in yeast.

Mariana C Frigieri, Marcus V S João Luiz, Luciano H Apponi, Cleslei F Zanelli, Sandro R Valentini

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In one paragraph

Article in Molecular genetics and genomics : MGG, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

10 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
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  7. Article
  8. Review
  9. Article
  10. The hypusine-containing translation factor eIF5A.Critical reviews in biochemistry and molecular biology
    Review
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

5 authors at 1 institution in 1 country.

Mariana C FrigieriDepartment of Biological Sciences, School of Pharmaceutical Sciences, São Paulo State University, UNESP, Rod Araraquara-Jaú, km 1, Araraquara, SP, Brazil.
Marcus V S João Luiz
Luciano H Apponi
Cleslei F Zanelli
Sandro R Valentini
Universidade Estadual Paulista (Unesp) · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The putative translation initiation factor 5A (eIF5A) is a small protein, highly conserved and essential in all organisms from archaea to mammals. Although the involvement of eIF5A in translation initiation has been questioned, new evidence reestablished the connection between eIF5A and this cellular process. In order to better understand the function of elF5A, a screen for synthetic lethal gene using the tif51A-3 mutant was carried out and a new mutation (G80D) was found in the essential gene YPT1, encoding a protein involved in vesicular trafficking. The precursor form of the vacuolar protein CPY is accumulated in the ypt1-G80D mutant at the nonpermissive temperature, but this defect in vesicular trafficking did not occur in the tif51A mutants tested. Overexpression of eIF5A suppresses the growth defect of a series of ypt1 mutants, but this suppression does not restore correct CPY sorting. On the other hand, overexpression of YPT1 does not suppress the growth defect of tif51A mutants. Further, it was revealed that eIF-5A is present in both soluble and membrane fractions, and its membrane association is ribosome-dependent. Finally, we demonstrated that the ypt1 and other secretion pathway mutants are sensitive to paromomycin. These results confirm the link between translation and vesicular trafficking and reinforce the implication of eIF5A in protein synthesis.

Indexed as

Protein BiosynthesisAllelesBiological TransportCarboxypeptidasesEukaryotic Translation Initiation Factor 5AGenes, FungalGenes, LethalIntracellular MembranesModels, GeneticMutant ProteinsMutationPeptide Initiation FactorsProtein Processing, Post-Translationalrab GTP-Binding ProteinsRibosomesRNA-Binding ProteinsCarboxypeptidasesCPY protein, S cerevisiaeEukaryotic Translation Initiation Factor 5AMutant ProteinsPeptide Initiation Factorsrab GTP-Binding ProteinsRNA-Binding ProteinsSaccharomyces cerevisiae ProteinsYPT1 protein, S cerevisiae

Identifiers

PMID18568365
OpenAlexW2093650866

What OpenQuestion holds

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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.