Evidence map›Paper›PMID 17890361›Full record

ArticleGenetics2007

Disruption of topoisomerase II perturbs pairing in drosophila cell culture.

Benjamin R Williams, Jack R Bateman, Natasha D Novikov, C-Ting Wu

Open access · bronzeAbstract read
In one paragraph

Article in Genetics, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
0.4field-weighted citation impact, top 38% 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

45 citing papers in PubMed, 61 citations in OpenAlex.

  1. Article
  2. Article
  3. Fruit fly for anticancer drug discovery and repurposing.Annals of medicine and surgery (2012) · 2023
    Article
  4. Review
  5. Article
  6. Mitotic Antipairing of Homologous Chromosomes.Results and problems in cell differentiation · 2022
    Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Polyteny: still a giant player in chromosome research.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2017
    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

4 authors at 1 institution in 1 country.

Benjamin R WilliamsDepartment of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.
Jack R Bateman
Natasha D Novikov
C-Ting Wu
Harvard University · US

Funding

A STUDY OF TRANSVECTION AT THE DROSOPHILA YELLOW GENER01GM061936 · NIGMS · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI WU, CHAO-TING · 2000 to 2003
$1.7M
Studies of enhancer action in trans in DrosophilaF32GM067460 · NIGMS · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI BATEMAN, JACK · 2003 to 2005
$139k
NIGMS NIH HHS F32 GM067460NIGMS NIH HHS GM-61936NIGMS NIH HHS GM-67460NIGMS NIH HHS R01 GM061936
6 · The paper itself

Abstract

Homolog pairing refers to the alignment and physical apposition of homologous chromosomal segments. Although commonly observed during meiosis, homolog pairing also occurs in nonmeiotic cells of several organisms, including humans and Drosophila. The mechanism underlying nonmeiotic pairing, however, remains largely unknown. Here, we explore the use of established Drosophila cell lines for the analysis of pairing in somatic cells. Using fluorescent in situ hybridization (FISH), we assayed pairing at nine regions scattered throughout the genome of Kc167 cells, observing high levels of homolog pairing at all six euchromatic regions assayed and variably lower levels in regions in or near centromeric heterochromatin. We have also observed extensive pairing in six additional cell lines representing different tissues of origin, different ploidies, and two different species, demonstrating homolog pairing in cell culture to be impervious to cell type or culture history. Furthermore, by sorting Kc167 cells into G1, S, and G2 subpopulations, we show that even progression through these stages of the cell cycle does not significantly change pairing levels. Finally, our data indicate that disrupting Drosophila topoisomerase II (Top2) gene function with RNAi and chemical inhibitors perturbs homolog pairing, suggesting Top2 to be a gene important for pairing.

Indexed as

Chromosome PairingAnimalsCell Culture TechniquesCell CycleChromosomes, FungalDNA Topoisomerases, Type IIDrosophila melanogasterHeterochromatinMeiosisRecombination, GeneticDNA Topoisomerases, Type IIHeterochromatin

Identifiers

PMID17890361
PMCPMC2013714
OpenAlexW2030991629

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.