Evidence map›Paper›PMID 11891280›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2002

Element-specific localization of Drosophila retrotransposon Gag proteins occurs in both nucleus and cytoplasm.

S Rashkova, S E Karam, M-L Pardue

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
7.4field-weighted citation impact, top 3% 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

28 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Transposable elements inMobile genetic elements · 2017
    Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Retrotransposons that maintain chromosome ends.Proceedings of the National Academy of Sciences of the United States of America · 2011
    Article
  10. Article
  11. Article
  12. Article
  13. Non-LTR retrotransposons encode noncanonical RRM domains in their first open reading frame.Proceedings of the National Academy of Sciences of the United States of America · 2009
    Article
  14. Review
  15. Article
  16. Molecular characterization of a retrotransposon in the Rhynchosciara americana genome and its association with telomere.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2008
    Article
  17. Regulation of telomere length in Drosophila.Cytogenetic and genome research · 2008
    Review
  18. 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
  19. Article
  20. Two retrotransposons maintain telomeres in Drosophila.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2005
    Review
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

S RashkovaDepartment of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
S E Karam
M-L Pardue
Massachusetts Institute of Technology · USMassa Products (United States) · 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
PROTEINS OF TELOMERE RETROTRANSPOSABLE ELEMENTSR01GM057006 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI PARDUE, MARY-LOU · 1998 to 2001
$403k
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 GM57006NIGMS NIH HHS R01 GM050315NIGMS NIH HHS R56 GM050315
6 · The paper itself

Abstract

Many Drosophila non-long terminal repeat (LTR) retrotransposons actively transpose into internal, gene-rich regions of chromosomes but do not transpose onto chromosome ends. HeT-A and TART are remarkable exceptions; they form telomeres of Drosophila by repeated transpositions onto the ends of chromosomes and never transpose to internal regions of chromosomes. Both telomeric and nontelomeric, non-LTR elements transpose by target-primed reverse transcription, and their targets are not determined simply by DNA sequence, so it is not clear why these two kinds of elements have nonoverlapping transposition patterns. To explore roles of retrotransposon-encoded proteins in transposition, we analyzed intracellular targeting of Gag proteins from five non-LTR retrotransposons, HeT-A, TART, jockey, Doc, and I factor. All were expressed as green fluorescent protein-tagged proteins in cultured Drosophila cells. These Gag proteins have high levels of sequence similarity, but they have dramatic differences in intracellular targeting. As expected, HeT-A and TART Gags are transported efficiently to nuclei, where they show specific patterns of localization. These patterns are cell cycle-dependent, disappearing during mitosis. In contrast, only a fraction of jockey Gag moves into nuclei, whereas neither Doc nor I factor Gag is detected in the nucleus. Gags of the nontelomeric retrotransposons form characteristic clusters in the cytoplasm. These experiments demonstrate that closely related retrotransposon Gag proteins can have different intracellular localizations, presumably because they interact differently with cellular components. We suggest that these interactions reflect mechanisms by which the cell influences the level of transposition of an element.

Indexed as

AnimalsCell CycleCell LineCell NucleusCytoplasmDrosophilaDrosophila ProteinsProtein TransportRecombinant Fusion ProteinsRecombination, GeneticRetroelementsTerminal Repeat SequencesTime FactorsDrosophila ProteinsRecombinant Fusion ProteinsRetroelements

Identifiers

PMID11891280
PMCPMC122573
OpenAlexW2056170465

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.