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Quantitative visualization of DNA G-quadruplex structures in human cells

Open access
Biffi, Giulia, Tannahill, David, McCafferty, John, Balasubramanian, Shankar·2013·Nature Chemistry

Abstract

Four-stranded G-quadruplex nucleic acid structures have been of great interest as their high thermodynamic stability under near-physiological conditions suggests that they could form in cells. Here, we report the generation and application of an engineered, structure-specific antibody that was employed to visualize quantitatively DNA G-quadruplex structures in human cells. We explicitly show that G-quadruplex formation in DNA is modulated during cell cycle progression and that endogenous G-quadruplex DNA structures can be stabilized by a small molecule ligand. Together these findings provide substantive evidence for the formation of G-quadruplex structures in the genome of mammalian cells and corroborate the application of stabilizing ligands in a cellular context to target G-quadruplexes and intervene with their function.

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Metadata

Authors
Biffi, G., Tannahill, D., McCafferty, J., & Balasubramanian, S.
Venue
Nature Chemistry
Published
2013-01-20
Volume
5
Issue
3
Pages
182-186
ISSN
  • 1755-4330 (ISSN-L)
  • 1755-4349
OpenAlex
W2155773930
Cited by
2,146
References
3
FWCI
84.99
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Quantitative visualization of DNA G-quadruplex structures in human cells. https://app.cochat.ai/papers/10.1038/nchem.1548
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Biffi, G., Tannahill, D., McCafferty, J., & Balasubramanian, S. (2013). Quantitative visualization of DNA G-quadruplex structures in human cells. Nature Chemistry. https://doi.org/10.1038/nchem.1548

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