Evidence map›Paper›PMID 25258322›Full record

ArticleThe Journal of biological chemistry2014

A translation system reconstituted with human factors proves that processing of encephalomyocarditis virus proteins 2A and 2B occurs in the elongation phase of translation without eukaryotic release factors.

Kodai Machida, Satoshi Mikami, Mamiko Masutani, Kurumi Mishima, Tominari Kobayashi, Hiroaki Imataka

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

23 citing papers in PubMed, 45 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Molecular architecture and diversity of StopGo/2A translational recoding.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  5. Structural insights into the role of eIF3 in translation mediated by the HCV IRES.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  6. Article
  7. Article
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  15. Article
  16. Ataluren and aminoglycosides stimulate read-through of nonsense codons by orthogonal mechanisms.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  17. Article
  18. PolyA tracks, polybasic peptides, poly-translational hurdles.Wiley interdisciplinary reviews. RNA · 2018
    Review
  19. Review
  20. Article
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

6 authors at 2 institutions in 1 country.

Kodai MachidaDepartment of Materials Science and Chemistry and University of Hyogo, Himeji 671-2201, Japan; Molecular Nanotechnology Research Center, Graduate School of Engineering, University of Hyogo, Himeji 671-2201, Japan and.
Satoshi MikamiRIKEN Systems and Structural Biology Center, Yokohama 230-0045, Japan.
Mamiko MasutaniDepartment of Materials Science and Chemistry and University of Hyogo, Himeji 671-2201, Japan.
Kurumi MishimaDepartment of Materials Science and Chemistry and University of Hyogo, Himeji 671-2201, Japan.
Tominari KobayashiDepartment of Materials Science and Chemistry and University of Hyogo, Himeji 671-2201, Japan.
Hiroaki ImatakaDepartment of Materials Science and Chemistry and University of Hyogo, Himeji 671-2201, Japan; Molecular Nanotechnology Research Center, Graduate School of Engineering, University of Hyogo, Himeji 671-2201, Japan and. Electronic address: imataka@eng.u-hyogo.ac.jp.
University of Hyogo · JPSystems Biology Institute · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The genomic RNA of encephalomyocarditis virus (EMCV) encodes a single polyprotein, and the primary scission of the polyprotein occurs between nonstructural proteins 2A and 2B by an unknown mechanism. To gain insight into the mechanism of 2A-2B processing, we first translated the 2A-2B region in vitro with eukaryotic and prokaryotic translation systems. The 2A-2B processing occurred only in the eukaryotic systems, not in the prokaryotic systems, and the unprocessed 2A-2B protein synthesized by a prokaryotic system remained uncleaved when incubated with a eukaryotic cell extract. These results suggest that 2A-2B processing is a eukaryote-specific, co-translational event. To define the translation factors required for 2A-2B processing, we constituted a protein synthesis system with eukaryotic elongation factors 1 and 2, eukaryotic release factors 1 and 3 (eRF1 and eRF3), aminoacyl-tRNA synthetases, tRNAs, ribosome subunits, and a plasmid template that included the hepatitis C virus internal ribosome entry site. We successfully reproduced 2A-2B processing in the reconstituted system even without eRFs. Our results indicate that this unusual event occurs in the elongation phase of translation.

Indexed as

Protein BiosynthesisAlanineAmino Acyl-tRNA SynthetasesBinding SitesCell-Free SystemDNA, ComplementaryEncephalomyocarditis virusEukaryotic Initiation Factor-2Gene DeletionGene Expression RegulationHeLa CellsHepacivirusHumansMutationOpen Reading FramesPeptide Elongation Factor 1AlanineAmino Acyl-tRNA SynthetasesDNA, ComplementaryEukaryotic Initiation Factor-2Peptide Elongation Factor 1Viral Nonstructural ProteinsViral Proteinsvirus protein 2ACell-free SystemProtein ExpressionProtein ProcessingProtein SynthesisReconstitution SystemTranslation RegulationViral Protein

Identifiers

PMID25258322
PMCPMC4231674
OpenAlexW1974687863

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Registered trials

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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.