Evidence map›Paper›PMID 15632088›Full record

ArticleGenome research2005

Functional mapping of a trypanosome centromere by chromosome fragmentation identifies a 16-kb GC-rich transcriptional "strand-switch" domain as a major feature.

Samson O Obado, Martin C Taylor, Shane R Wilkinson, Elizabeth V Bromley, John M Kelly

Open access · bronzeAbstract read
In one paragraph

Article in Genome research, 2005. 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, 72 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Pathogens (Basel, Switzerland) · 2025
    Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Site-Specific Cleavage by Topoisomerase 2: A Mark of the Core Centromere.International journal of molecular sciences · 2018
    Article
  12. Article
  13. Article
  14. Nitroheterocyclic drug resistance mechanisms in Trypanosoma brucei.The Journal of antimicrobial chemotherapy · 2016
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. 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

5 authors at 1 institution in 1 country.

Samson O ObadoDepartment of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London WC1E 7HT, United Kingdom.
Martin C Taylor
Shane R Wilkinson
Elizabeth V Bromley
John M Kelly
University of London · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

Trypanosomatids are an ancient family that diverged from the main eukaryotic lineage early in evolution, which display several unique features of gene organization and expression. Although genome sequencing is now complete, the nature of centromeres in these and other parasitic protozoa has not been resolved. Here, we report the functional mapping of a centromere in the American trypanosome, Trypanosoma cruzi, a parasite with an unusual mechanism of genetic exchange that involves the generation of aneuploidy by nuclear hybridization. Using a telomere-associated chromosome fragmentation approach, we show that the region required for the mitotic stability of chromosome 3 encompasses a transcriptional "strand-switch" domain constituted by a 16-kb GC-rich island. The domain contains several degenerate retrotransposon-like insertions, but atypically, lacks the arrays of satellite repeats normally associated with centromeric regions. This unusual type of organization may represent a paradigm for centromeres in T. cruzi and other primitive eukaryotes.

Indexed as

AnimalsCentromereChromosome AberrationsChromosomesDNA FragmentationGenetic VectorsGenome, ProtozoanMitosisMolecular Sequence DataMonosomyPhysical Chromosome MappingTrypanosoma cruzi

Identifiers

PMID15632088
PMCPMC540271
OpenAlexW2159334261

What OpenQuestion holds

Textmetadata
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.