Evidence map›Paper›PMID 18310103›Full record

ArticleNucleic acids research2008

Step-wise formation of eukaryotic double-row polyribosomes and circular translation of polysomal mRNA.

Gelina S Kopeina, Zhanna A Afonina, Kira V Gromova, Vladimir A Shirokov, Victor D Vasiliev, Alexander S Spirin

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

42 citing papers in PubMed, 79 citations in OpenAlex.

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  12. Functional Cyclization of Eukaryotic mRNAs.International journal of molecular sciences · 2020
    Article
  13. Article
  14. mTORC1 Enhances Early Phase Ribosome Processivity.Frontiers in molecular biosciences · 2020
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. A researcher's guide to the galaxy of IRESs.Cellular and molecular life sciences : CMLS · 2017
    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

6 authors at 1 institution in 1 country.

Gelina S KopeinaInstitute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia.
Zhanna A Afonina
Kira V Gromova
Vladimir A Shirokov
Victor D Vasiliev
Alexander S Spirin
Institute of Protein Research · RU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The time course of polysome formation was studied in a long-term wheat germ cell-free translation system using sedimentation and electron microscopy techniques. The polysomes were formed on uncapped luciferase mRNA with translation-enhancing 5' and 3' UTRs. The formation of fully loaded polysomes was found to be a long process that required many rounds of translation and proceeded via several phases. First, short linear polysomes containing no more than six ribosomes were formed. Next, folding of these polysomes into short double-row clusters occurred. Subsequent gradual elongation of the clusters gave rise to heavy-loaded double-row strings containing up to 30-40 ribosomes. The formation of the double-row polysomes was considered to be equivalent to circularization of polysomes, with antiparallel halves of the circle being laterally stuck together by ribosome interactions. A slow exchange with free ribosomes and free mRNA observed in the double-row type polysomes, as well as the resistance of translation in them to AMP-PNP, provided evidence that most polysomal ribosomes reinitiate translation within the circularized polysomes without scanning of 5' UTR, while de novo initiation including 5' UTR scanning proceeds at a much slower rate. Removal or replacements of 5' and 3' UTRs affected the initial phase of translation, but did not prevent the formation of the double-row polysomes during translation.

Indexed as

Protein Biosynthesis3' Untranslated Regions5' Untranslated RegionsCell-Free SystemCentrifugation, Density GradientKineticsLuciferasesLuminescent ProteinsPolyribosomesRibosomesRNA, MessengerTobacco Mosaic VirusTriticum3' Untranslated Regions5' Untranslated RegionsLuciferasesLuminescent ProteinsobelinRNA, Messenger

Identifiers

PMID18310103
PMCPMC2377419
OpenAlexW2009226410

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.