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The DOI matches its Crossref record; 46 of the 46 references it cites were found in a registry or an index.

Transient Hoogsteen base pairs in canonical duplex DNA

Open access
Nikolova, Evgenia N., Kim, Eunae, Wise, Abigail A., O’Brien, Patrick J., Andricioaei, Ioan, Al-Hashimi, Hashim M.·2011·Nature

Abstract

Sequence-directed variations in the canonical DNA double helix structure that retain Watson–Crick base-pairing have important roles in DNA recognition, topology and nucleosome positioning. By using nuclear magnetic resonance relaxation dispersion spectroscopy in concert with steered molecular dynamics simulations, we have observed transient sequence-specific excursions away from Watson–Crick base-pairing at CA and TA steps inside canonical duplex DNA towards low-populated and short-lived A•T and G•C Hoogsteen base pairs. The observation of Hoogsteen base pairs in DNA duplexes specifically bound to transcription factors and in damaged DNA sites implies that the DNA double helix intrinsically codes for excited state Hoogsteen base pairs as a means of expanding its structural complexity beyond that which can be achieved based on Watson–Crick base-pairing. The methods presented here provide a new route for characterizing transient low-populated nucleic acid structures, which we predict will be abundant in the genome and constitute a second transient layer of the genetic code.

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Metadata

Authors
Nikolova, E. N., Kim, E., Wise, A. A., O’Brien, P. J., Andricioaei, I., & Al-Hashimi, H. M.
Venue
Nature
Published
2011-01-26
Volume
470
Issue
7335
Pages
498-502
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2052246375
Cited by
344
References
46
FWCI
11.17
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Transient Hoogsteen base pairs in canonical duplex DNA. https://app.cochat.ai/papers/10.1038/nature09775
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Nikolova, E. N., Kim, E., Wise, A. A., O’Brien, P. J., Andricioaei, I., & Al-Hashimi, H. M. (2011). Transient Hoogsteen base pairs in canonical duplex DNA. Nature. https://doi.org/10.1038/nature09775

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