Evidence map›Paper›PMID 21176138›Full record

ArticleBMC molecular biology2010

The CTCF insulator protein forms an unusual DNA structure.

Melissa J MacPherson, Paul D Sadowski

Open access · hybridAbstract read
In one paragraph

Article in BMC molecular biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

24 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
  2. Article
  3. Contribution of the IGCR1 regulatory element and the 3'Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. CTCF mediates chromatin looping via N-terminal domain-dependent cohesin retention.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. CTCF: making the right connections.Genes & development · 2016
    Review
  17. Article
  18. Epigenetics and memigenetics.Cellular and molecular life sciences : CMLS · 2014
    Review
  19. Article
  20. 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.

Melissa J MacPhersonDepartment of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada.
Paul D Sadowski
Canada Research Chairs · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

backgroundThe CTCF insulator protein is a highly conserved zinc finger protein that has been implicated in many aspects of gene regulation and nuclear organization. The protein has been hypothesized to organize the human genome by forming DNA loops.

resultsIn this paper, we report biochemical evidence to support the role for CTCF in forming DNA loops. We have measured DNA bending by CTCF at the chicken HS4 β-globin FII insulator element in vitro and have observed a unique DNA structure with aberrant electrophoretic mobility which we believe to be a DNA loop. CTCF is able to form this unusual DNA structure at two other binding sites: the c-myc P2 promoter and the chicken F1 lysozyme gene silencer. We also demonstrate that the length though not the sequence of the DNA downstream of the binding site is important for the ability of CTCF to form this unusual DNA structure. We hypothesize that a single CTCF protein molecule is able to act as a "looper" possibly through the use of several of its zinc fingers.

conclusionsCTCF is able to form an unusual DNA structure through the zinc finger domain of the protein. This unusual DNA structure is formed in a directional manner by the CTCF protein. The findings described in this paper suggest mechanisms by which CTCF is able to form DNA loops, organize the mammalian genome and function as an insulator protein.

Indexed as

AnimalsBase SequenceBinding SitesCCCTC-Binding FactorChickensDNAMiceNucleic Acid ConformationProtein BindingRepressor ProteinsZinc FingersCCCTC-Binding FactorCTCF protein, humanCtcf protein, mouseDNARepressor Proteins

Identifiers

PMID21176138
PMCPMC3014928
OpenAlexW2081220190

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.