Evidence map›Paper›PMID 26628723›Full record

ArticlemBio2015

Gene Loss and Error-Prone RNA Editing in the Mitochondrion of Perkinsela, an Endosymbiotic Kinetoplastid.

Vojtěch David, Pavel Flegontov, Evgeny Gerasimov, Goro Tanifuji, Hassan Hashimi, Maria D Logacheva, Shinichiro Maruyama, Naoko T Onodera, Michael W Gray, John M Archibald and 1 more

Open access · goldAbstract read
In one paragraph

Article in mBio, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

29 citing papers in PubMed, 38 citations in OpenAlex.

  1. Why Euglenozoans.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  2. Evolutionary divergent kinetoplast genome structure and RNA editing patterns in the trypanosomatidProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. Review
  4. Article
  5. Article
  6. Mitochondrial RNA editing inComputational and structural biotechnology journal · 2022
    Article
  7. Article
  8. Article
  9. Article
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  11. Article
  12. Selfish Mitonuclear Conflict.Current biology : CB · 2019
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Mitochondrial dual-coding genes in Trypanosoma brucei.PLoS neglected tropical diseases · 2017
    Article
  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

11 authors at 5 institutions in 3 countries.

Vojtěch DavidInstitute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic Faculty of Sciences, University of South Bohemia, České Budějovice, Czech Republic.
Pavel FlegontovInstitute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic Life Science Research Centre, Faculty of Science, University of Ostrava, Ostrava, Czech Republic.
Evgeny GerasimovFaculty of Biology, Lomonosov Moscow State University, Moscow, Russia.
Goro TanifujiDepartment of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Canada.
Hassan HashimiInstitute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic Faculty of Sciences, University of South Bohemia, České Budějovice, Czech Republic.
Maria D LogachevaFaculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow, Russia.
Shinichiro MaruyamaDepartment of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Canada.
Naoko T OnoderaDepartment of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Canada.
Michael W GrayDepartment of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Canada Canadian Institute for Advanced Research, Toronto, Canada.
John M ArchibaldDepartment of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Canada Canadian Institute for Advanced Research, Toronto, Canada.
Julius LukešInstitute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic Faculty of Sciences, University of South Bohemia, České Budějovice, Czech Republic Canadian Institute for Advanced Research, Toronto, Canada jula@paru.cas.cz.
Dalhousie University · CALomonosov Moscow State University · RUUniversity of South Bohemia in České Budějovice · CZInstitute of Parasitology · CZUniversity of Ostrava · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

unlabelledPerkinsela is an enigmatic early-branching kinetoplastid protist that lives as an obligate endosymbiont inside Paramoeba (Amoebozoa). We have sequenced the highly reduced mitochondrial genome of Perkinsela, which possesses only six protein-coding genes (cox1, cox2, cox3, cob, atp6, and rps12), despite the fact that the organelle itself contains more DNA than is present in either the host or endosymbiont nuclear genomes. An in silico analysis of two Perkinsela strains showed that mitochondrial RNA editing and processing machineries typical of kinetoplastid flagellates are generally conserved, and all mitochondrial transcripts undergo U-insertion/deletion editing. Canonical kinetoplastid mitochondrial ribosomes are also present. We have developed software tools for accurate and exhaustive mapping of transcriptome sequencing (RNA-seq) reads with extensive U-insertions/deletions, which allows detailed investigation of RNA editing via deep sequencing. With these methods, we show that up to 50% of reads for a given edited region contain errors of the editing system or, less likely, correspond to alternatively edited transcripts. IMPORTANCE: Uridine insertion/deletion-type RNA editing, which occurs in the mitochondrion of kinetoplastid protists, has been well-studied in the model parasite genera Trypanosoma, Leishmania, and Crithidia. Perkinsela provides a unique opportunity to broaden our knowledge of RNA editing machinery from an evolutionary perspective, as it represents the earliest kinetoplastid branch and is an obligatory endosymbiont with extensive reductive trends. Interestingly, up to 50% of mitochondrial transcripts in Perkinsela contain errors. Our study was complemented by use of newly developed software designed for accurate mapping of extensively edited RNA-seq reads obtained by deep sequencing.

Indexed as

Gene DeletionRNA EditingAmoebozoaComputational BiologyDNA, MitochondrialHigh-Throughput Nucleotide SequencingKinetoplastidaMitochondriaSequence Analysis, DNADNA, Mitochondrial

Identifiers

PMID26628723
PMCPMC4669381
OpenAlexW2182691378

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.