Evidence map›Paper›PMID 20226008›Full record

ArticleMobile DNA2010

Extrachromosomal circles of satellite repeats and 5S ribosomal DNA in human cells.

Sarit Cohen, Neta Agmon, Olga Sobol, Daniel Segal

Abstract read
In one paragraph

Article in Mobile DNA, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers.

0numbers the graph read from it
0cells of the map it votes in
75citing 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

75 citing papers in PubMed.

  1. Genome architecture modulates 35S and 5S rDNA homogenization in Asteraceae.The Plant journal : for cell and molecular biology · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Satellite DNA Genomics: The Ongoing Story.International journal of molecular sciences · 2025
    Review
  6. Long-read sequencing reveals genomic and epigenomic variation in the dark genome of human Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Evolution of satDNAs on holocentric chromosomes: insights from hemipteran insects of the genus Mahanarva.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2023
    Article
  15. Article
  16. TheeLife · 2022
    Article
  17. Review
  18. Article
  19. Review
  20. Revealing the Satellite DNA History inFrontiers in genetics · 2022
    Article

15 more citing papers are in PubMed but not listed here.

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

4 authors.

Sarit CohenDepartment of Molecular Microbiology & Biotechnology Tel-Aviv University, Tel-Aviv 69978, Israel. scohen@post.tau.ac.il.
Neta Agmon
Olga Sobol
Daniel Segal

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundExtrachomosomal circular DNA (eccDNA) is ubiquitous in eukaryotic organisms and was detected in every organism tested, including in humans. A two-dimensional gel electrophoresis facilitates the detection of eccDNA in preparations of genomic DNA. Using this technique we have previously demonstrated that most of eccDNA consists of exact multiples of chromosomal tandemly repeated DNA, including both coding genes and satellite DNA.

resultsHere we report the occurrence of eccDNA in every tested human cell line. It has heterogeneous mass ranging from less than 2 kb to over 20 kb. We describe eccDNA homologous to human alpha satellite and the SstI mega satellite. Moreover, we show, for the first time, circular multimers of the human 5S ribosomal DNA (rDNA), similar to previous findings in Drosophila and plants. We further demonstrate structures that correspond to intermediates of rolling circle replication, which emerge from the circular multimers of 5S rDNA and SstI satellite.

conclusionsThese findings, and previous reports, support the general notion that every chromosomal tandem repeat is prone to generate eccDNA in eukryoric organisms including humans. They suggest the possible involvement of eccDNA in the length variability observed in arrays of tandem repeats. The implications of eccDNA on genome biology may include mechanisms of centromere evolution, concerted evolution and homogenization of tandem repeats and genomic plasticity.

Identifiers

PMID20226008
PMCPMC3225859

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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.