Evidence map›Paper›PMID 18314502›Full record

ArticleRNA (New York, N.Y.)2008

Two distinct structural elements of 5S rRNA are needed for its import into human mitochondria.

Alexandre Smirnov, Ivan Tarassov, Anne-Marie Mager-Heckel, Michel Letzelter, Robert P Martin, Igor A Krasheninnikov, Nina Entelis

Abstract read
In one paragraph

Article in RNA (New York, N.Y.), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
–field-weighted citation impact
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

38 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Research progress in mitochondrial gene editing technology.Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2023
    Article
  8. Trends and prospects in mitochondrial genome editing.Experimental & molecular medicine · 2023
    Review
  9. Review
  10. Review
  11. Strategies for mitochondrial gene editing.Computational and structural biotechnology journal · 2021
    Review
  12. Article
  13. Article
  14. Review
  15. Review
  16. Review
  17. Review
  18. Article
  19. tRNAs and proteins use the same import channel for translocation across the mitochondrial outer membrane of trypanosomes.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  20. 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

7 authors.

Alexandre SmirnovDepartment of Molecular and Cellular Genetics, UMR 7156, Centre National de Recherche Scientifique-Université Louis Pasteur,Strasbourg 67084, France.
Ivan Tarassov
Anne-Marie Mager-Heckel
Michel Letzelter
Robert P Martin
Igor A Krasheninnikov
Nina Entelis

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

RNA import into mitochondria is a widespread phenomenon. Studied in details for yeast, protists, and plants, it still awaits thorough investigation for human cells, in which the nuclear DNA-encoded 5S rRNA is imported. Only the general requirements for this pathway have been described, whereas specific protein factors needed for 5S rRNA delivery into mitochondria and its structural determinants of import remain unknown. In this study, a systematic analysis of the possible role of human 5S rRNA structural elements in import was performed. Our experiments in vitro and in vivo show that two distinct regions of the human 5S rRNA molecule are needed for its mitochondrial targeting. One of them is located in the proximal part of the helix I and contains a conserved uncompensated G:U pair. The second and most important one is associated with the loop E-helix IV region with several noncanonical structural features. Destruction or even destabilization of these sites leads to a significant decrease of the 5S rRNA import efficiency. On the contrary, the beta-domain of the 5S rRNA was proven to be dispensable for import, and thus it can be deleted or substituted without affecting the 5S rRNA importability. This finding was used to demonstrate that the 5S rRNA can function as a vector for delivering heterologous RNA sequences into human mitochondria. 5S rRNA-based vectors containing a substitution of a part of the beta-domain by a foreign RNA sequence were shown to be much more efficiently imported in vivo than the wild-type 5S rRNA.

Indexed as

Base SequenceBinding SitesBiological Transport, ActiveCell LineHumansMitochondriaModels, BiologicalModels, MolecularMolecular Sequence DataMutationNucleic Acid ConformationProtein BindingRNARNA, Ribosomal, 5STransfectionRNARNA, recombinantRNA, Ribosomal, 5S

Identifiers

PMID18314502
PMCPMC2271358

What OpenQuestion holds

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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.