Evidence map›Paper›PMID 11514450›Full record

ArticleGenetics2001

The activation of a neocentromere in Drosophila requires proximity to an endogenous centromere.

K A Maggert, G H Karpen

Abstract read
In one paragraph

Article in Genetics, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
10.5field-weighted citation impact, top 2% 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

72 citing papers in PubMed, 126 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Sequence, Chromatin and Evolution of Satellite DNA.International journal of molecular sciences · 2021
    Review
  6. Review
  7. Review
  8. Epigenetics and genome stability.Mammalian genome : official journal of the International Mammalian Genome Society · 2020
    Review
  9. Review
  10. Functional Significance of Satellite DNAs: Insights FromFrontiers in cell and developmental biology · 2020
    Review
  11. Article
  12. Genetics · 2019
    Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. Human centromere repositioning within euchromatin after partial chromosome deletion.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2016
    Article
  19. Article
  20. Article

12 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

2 authors at 2 institutions in 1 country.

K A MaggertStower's Institute for Medical Research, Kansas City, Missouri 64110, USA.
G H Karpen
Salk Institute for Biological Studies · USStowers Institute for Medical Research · US

Funding

DROSOPHILA CENTROMERE PROTEIN GENESR01GM054549 · NIGMS · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI KARPEN, GARY H. · 1996 to 2000
$82k
NIGMS NIH HHS R01-GM54549
6 · The paper itself

Abstract

The centromere is essential for proper segregation and inheritance of genetic information. Centromeres are generally regulated to occur exactly once per chromosome; failure to do so leads to chromosome loss or damage and loss of linked genetic material. The mechanism for faithful regulation of centromere activity and number is unknown. The presence of ectopic centromeres (neocentromeres) has allowed us to probe the requirements and characteristics of centromere activation, maintenance, and structure. We utilized chromosome derivatives that placed a 290-kilobase "test segment" in three different contexts within the Drosophila melanogaster genome--immediately adjacent to (1) centromeric chromatin, (2) centric heterochromatin, or (3) euchromatin. Using irradiation mutagenesis, we freed this test segment from the source chromosome and genetically assayed whether the liberated "test fragment" exhibited centromere activity. We observed that this test fragment behaved differently with respect to centromere activity when liberated from different chromosomal contexts, despite an apparent sequence identity. Test segments juxtaposed to an active centromere produced fragments with neocentromere activity, whereas test segments far from centromeres did not. Once established, neocentromere activity was stable. The imposition of neocentromere activity on juxtaposed DNA supports the hypothesis that centromere activity and identity is capable of spreading and is regulated epigenetically.

Indexed as

AnimalsBlotting, SouthernCentromereChromatinChromosomesCrosses, GeneticDNADrosophilaFemaleGamma RaysMaleModels, GeneticPolymerase Chain ReactionSequence Analysis, DNAChromatinDNA

Identifiers

PMID11514450
PMCPMC1461751
OpenAlexW1848552159

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.