Evidence map›Paper›PMID 31177910›Full record

ArticleEpigenetics2019

Integrative characterization of G-Quadruplexes in the three-dimensional chromatin structure.

Yue Hou, Fuyu Li, Rongxin Zhang, Sheng Li, Hongde Liu, Zhaohui S Qin, Xiao Sun

Open access · hybridAbstract read
In one paragraph

Article in Epigenetics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

73 citing papers in PubMed, 123 citations in OpenAlex.

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  5. CTCF directly binds G-quadruplex structures to regulate genome topology and gene expression.Proceedings of the National Academy of Sciences of the United States of America · 2026
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13 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

7 authors at 2 institutions in 2 countries.

Yue Houa State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing , Jiangsu , China.
Fuyu Lia State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing , Jiangsu , China.
Rongxin Zhanga State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing , Jiangsu , China.
Sheng Lia State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing , Jiangsu , China.
Hongde Liua State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing , Jiangsu , China.
Zhaohui S Qina State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing , Jiangsu , China.
Xiao Suna State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University , Nanjing , Jiangsu , China.
State Key Laboratory of Digital Medical EngineeringSoutheast University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

DNA molecules are highly compacted in the eukaryotic nucleus where distal regulatory elements reach their targets through three-dimensional chromosomal interactions. G-quadruplexes, stable four-stranded non-canonical DNA structures, can change local chromatin organization through the exclusion of nucleosomes. However, the relationship between G-quadruplexes and higher-order genome organization remains unknown. Here, we found that G-quadruplexes are significantly enriched at boundaries of topological associated domains (TADs). Architectural protein occupancy, which plays critical roles in the formation of TADs, was highly correlated with the content of G-quadruplexes at TAD boundaries. Moreover, adjacent boundaries containing G-quadruplexes frequently interacted with each other because of the high enrichment of architectural protein binding sites. Similar to CCCTC-binding factor (CTCF) binding sites, G-quadruplexes also showed strong insulation ability in the separation of adjacent regions. Additionally, the insulation ability of CTCF binding sites and TAD boundaries was significantly reinforced by G-quadruplexes. Furthermore, G-quadruplex motifs on different strands were associated with the orientation of CTCF binding sites. These findings suggest a potential role for G-quadruplexes in loop extrusion. The enrichment of transcription factor binding sites (TFBSs) around regulatory elements containing G-quadruplexes led to frequent interactions between regulatory elements containing G-quadruplexes. Intriguingly, more than 99% of G-quadruplexes overlapped with TFBSs. The binding sites of CTCF and cohesin proteins were preferentially located surrounding G-quadruplexes. Accordingly, we proposed a new mechanism of long-distance gene regulation in which G-quadruplexes are involved in distal interactions between enhancers and promoters.

Indexed as

Binding SitesCCCTC-Binding FactorCell Cycle ProteinsChromatinChromatin Immunoprecipitation SequencingChromosomal Proteins, Non-HistoneCohesinsDNAEnhancer Elements, GeneticGene Expression RegulationG-QuadruplexesHumansK562 CellsModels, MolecularPromoter Regions, GeneticSequence Analysis, RNACCCTC-Binding FactorCell Cycle ProteinsChromatinChromosomal Proteins, Non-HistoneCohesinsCTCF protein, humanDNATranscription FactorsChromatin structureenhancer-promoter interactionG-quadruplexHi-Cloop extrusiontranscription factor

Identifiers

PMID31177910
PMCPMC6691997
OpenAlexW2951171673

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.