Evidence map›Paper›PMID 14614149›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2003

HeT-A elements in Drosophila virilis: retrotransposon telomeres are conserved across the Drosophila genus.

Elena Casacuberta, Mary-Lou Pardue

Open access · greenAbstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
5.0field-weighted citation impact, top 5% 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

21 citing papers in PubMed, 39 citations in OpenAlex.

  1. Paramutation-Like Behavior of Genic piRNA-Producing Loci inInternational journal of molecular sciences · 2025
    Article
  2. Review
  3. Review
  4. Article
  5. Distribution of TTAGG-specific telomerase activity in insects.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2014
    Article
  6. Article
  7. Article
  8. Retrotransposons that maintain chromosome ends.Proceedings of the National Academy of Sciences of the United States of America · 2011
    Article
  9. Article
  10. Article
  11. Evolution of diverse mechanisms for protecting chromosome ends by Drosophila TART telomere retrotransposons.Proceedings of the National Academy of Sciences of the United States of America · 2010
    Article
  12. Article
  13. Article
  14. Intracellular targeting of telomeric retrotransposon Gag proteins of distantly related Drosophila species.Proceedings of the National Academy of Sciences of the United States of America · 2007
    Article
  15. Article
  16. Article
  17. Article
  18. Telomere-specific non-LTR retrotransposons and telomere maintenance in the silkworm, Bombyx mori.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2005
    Review
  19. Two retrotransposons maintain telomeres in Drosophila.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2005
    Review
  20. Drosophila telomeres: the non-telomerase alternative.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2005
    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

2 authors at 1 institution in 1 country.

Elena CasacubertaDepartment of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
Mary-Lou Pardue
Massachusetts Institute of Technology · US

Funding

HET-A, A RETROPOSON WITH A ROLE IN CHROMOSOME STRUCTURER01GM050315 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI PARDUE, MARY-LOU · 1995 to 2006
$2.3M
An Evolutionary Link Between Telomeres and TransposonsR56GM050315 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI PARDUE, MARY-LOU · 2008 to 2008
$399k
NIGMS NIH HHS GM50315NIGMS NIH HHS R01 GM050315NIGMS NIH HHS R56 GM050315
6 · The paper itself

Abstract

Drosophila melanogaster telomeres are composed of two retrotransposons, HeT-A and TART. Drosophila virilis has recently been shown to have telomere-specific TART elements with many of the characteristics of their D. melanogaster homologues. We now report identification of the second telomere-specific retrotransposon, HeT-A, from D. virilis. These results show that HeT-A and TART have been maintaining telomeres in Drosophila for more than the 60 million years that separate D. melanogaster and D. virilis. All Drosophila species and stocks studied have both of these telomeric elements, suggesting that the elements collaborate, an assumption supported by evidence from D. melanogaster that their Gag proteins interact. Although the HeT-A sequence evolves at a high rate, the element retains the unusual structural features that characterize all HeT-A homologues. These features may be involved in the role of HeT-A at the telomere. The Gag protein from HeT-Avir is as much like TART Gag from other species as it is like HeT-A Gag, suggesting that these Gags are evolving under similar constraints, probably to maintain appropriate interactions with host telomeres and possibly to allow collaborative interactions like those seen in D. melanogaster. In addition, we have identified a chimeric element, Uvir, carrying a pol coding sequence only distantly related to sequences thus far found in any telomere arrays.

Indexed as

AnimalsBase SequenceConserved SequenceDNADrosophilaDrosophila melanogasterDrosophila ProteinsEvolution, MolecularGene Products, gagGenes, InsectIn Situ HybridizationMolecular Sequence DataPhylogenyRetroelementsSpecies SpecificityTelomereDNADrosophila ProteinsGene Products, gagHeT-A-gag protein, DrosophilaRetroelementsTART-element-gag protein, Drosophila

Identifiers

PMID14614149
PMCPMC283551
OpenAlexW2118444406

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.