Evidence map›Paper›PMID 21102442›Full record

ArticleNature cell biology2010

A small GTPase molecular switch regulates epigenetic centromere maintenance by stabilizing newly incorporated CENP-A.

Anaïck Lagana, Jonas F Dorn, Valérie De Rop, Anne-Marie Ladouceur, Amy S Maddox, Paul S Maddox

Abstract read
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In one paragraph

Article in Nature cell biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed
18.2field-weighted citation impact, top 1% 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

82 citing papers in PubMed, 114 citations in OpenAlex.

  1. Trial
  2. Article
  3. Centromere regulation in the germline and early embryo.Current opinion in genetics & development · 2025
    Review
  4. A brief historical perspective on cell cycle control of CENP-A assembly and inheritance.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2025
    Review
  5. Article
  6. Article
  7. Article
  8. Compromised Mitotic Fidelity in Human Pluripotent Stem Cells.International journal of molecular sciences · 2023
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Centromere Identity and the Regulation of Chromosome Segregation.Frontiers in cell and developmental biology · 2022
    Review
  14. CENP-A Regulation and Cancer.Frontiers in cell and developmental biology · 2022
    Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Epigenetic regulation of centromere function.Cellular and molecular life sciences : CMLS · 2020
    Review
  20. Review

22 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Anaïck LaganaInstitute for Research in Immunology and Cancer, Université de Montréal P.O. Box 6128, Station Centre-Ville Montréal QC, H3C 3J7 Canada.
Jonas F Dorn
Valérie De Rop
Anne-Marie Ladouceur
Amy S Maddox
Paul S Maddox
Université de Montréal · CAInstitute for Research in Immunology and Cancer · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Epigenetic mechanisms regulate genome activation in diverse events, including normal development and cancerous transformation. Centromeres are epigenetically designated chromosomal regions that maintain genomic stability by directing chromosome segregation during cell division. The histone H3 variant CENP-A resides specifically at centromeres, is fundamental to centromere function and is thought to act as the epigenetic mark defining centromere loci. Mechanisms directing assembly of CENP-A nucleosomes have recently emerged, but how CENP-A is maintained after assembly is unknown. Here, we show that a small GTPase switch functions to maintain newly assembled CENP-A nucleosomes. Using functional proteomics, we found that MgcRacGAP (a Rho family GTPase activating protein) interacts with the CENP-A licensing factor HsKNL2. High-resolution live-cell imaging assays, designed in this study, demonstrated that MgcRacGAP, the Rho family guanine nucleotide exchange factor (GEF) Ect2, and the small GTPases Cdc42 and Rac, are required for stability of newly incorporated CENP-A at centromeres. Thus, a small GTPase switch ensures epigenetic centromere maintenance after loading of new CENP-A.

Indexed as

AnimalsAutoantigensCentromereCentromere Protein AChromosomal Proteins, Non-HistoneDNA ReplicationEpigenesis, GeneticHumansMonomeric GTP-Binding ProteinsAutoantigensCENPA protein, humanCentromere Protein AChromosomal Proteins, Non-HistoneMonomeric GTP-Binding Proteins

Identifiers

PMID21102442
OpenAlexW2054549648

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.