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Transposable elements and G-quadruplexes
E. Kejnovsky, V. Tokan, M. Lexa,
Language English Country Netherlands
Document type Journal Article, Research Support, Non-U.S. Gov't, Review
NLK
ProQuest Central
from 1997-02-01 to 1 year ago
Medline Complete (EBSCOhost)
from 2010-01-01 to 1 year ago
Health & Medicine (ProQuest)
from 1997-02-01 to 1 year ago
- MeSH
- DNA-Binding Proteins metabolism MeSH
- G-Quadruplexes * MeSH
- Genomics MeSH
- Humans MeSH
- Open Reading Frames MeSH
- Gene Expression Regulation MeSH
- Regulatory Sequences, Nucleic Acid MeSH
- Repetitive Sequences, Nucleic Acid MeSH
- DNA Replication MeSH
- Retroelements genetics MeSH
- RNA chemistry genetics MeSH
- Plants genetics MeSH
- DNA Transposable Elements genetics MeSH
- Protein Binding MeSH
- Check Tag
- Humans MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Review MeSH
A significant part of eukaryotic genomes is formed by transposable elements (TEs) containing not only genes but also regulatory sequences. Some of the regulatory sequences located within TEs can form secondary structures like hairpins or three-stranded (triplex DNA) and four-stranded (quadruplex DNA) conformations. This review focuses on recent evidence showing that G-quadruplex-forming sequences in particular are often present in specific parts of TEs in plants and humans. We discuss the potential role of these structures in the TE life cycle as well as the impact of G-quadruplexes on replication, transcription, translation, chromatin status, and recombination. The aim of this review is to emphasize that TEs may serve as vehicles for the genomic spread of G-quadruplexes. These non-canonical DNA structures and their conformational switches may constitute another regulatory system that, together with small and long non-coding RNA molecules and proteins, contribute to the complex cellular network resulting in the large diversity of eukaryotes.
References provided by Crossref.org
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- $a A significant part of eukaryotic genomes is formed by transposable elements (TEs) containing not only genes but also regulatory sequences. Some of the regulatory sequences located within TEs can form secondary structures like hairpins or three-stranded (triplex DNA) and four-stranded (quadruplex DNA) conformations. This review focuses on recent evidence showing that G-quadruplex-forming sequences in particular are often present in specific parts of TEs in plants and humans. We discuss the potential role of these structures in the TE life cycle as well as the impact of G-quadruplexes on replication, transcription, translation, chromatin status, and recombination. The aim of this review is to emphasize that TEs may serve as vehicles for the genomic spread of G-quadruplexes. These non-canonical DNA structures and their conformational switches may constitute another regulatory system that, together with small and long non-coding RNA molecules and proteins, contribute to the complex cellular network resulting in the large diversity of eukaryotes.
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