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Cited by 395

The DOI matches its Crossref record; 41 of the 41 references it cites were found in a registry or an index.

Structure of the intramolecular human telomeric G-quadruplex in potassium solution: a novel adenine triple formation

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Dai, Jixun, Punchihewa, Chandanamali, Ambrus, Attila, Chen, Ding, Jones, Roger A., Yang, Danzhou·2007·Nucleic Acids Research

Abstract

We report the NMR solution structure of the intramolecular G-quadruplex formed in human telomeric DNA in K(+). The hybrid-type telomeric G-quadruplex consists of three G-tetrads linked with mixed parallel-antiparallel G-strands, with the bottom two G-tetrads having the same G-arrangement (anti:anti:syn:anti) and the top G-tetrad having the reversed G-arrangement (syn:syn:anti:syn). The three TTA loop segments adopt different conformations, with the first TTA assuming a double-chain-reversal loop conformation, and the second and third TTA assuming lateral loop conformations. The NMR structure is very well defined, including the three TTA loops and the two flanking sequences at 5'- and 3'-ends. Our study indicates that the three loop regions interact with the core G-tetrads in a specific way that defines and stabilizes the unique human telomeric G-quadruplex structure in K(+). Significantly, a novel adenine triple platform is formed with three naturally occurring adenine residues, A21, A3 and A9, capping the top tetrad of the hybrid-type telomeric G-quadruplex. This adenine triple is likely to play an important role in the formation of a stable human telomeric G-quadruplex structure in K(+). The unique human telomeric G-quadruplex structure formed in K(+) suggests that it can be specifically targeted for anticancer drug design.

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Metadata

Authors
Dai, J., Punchihewa, C., Ambrus, A., Chen, D., Jones, R. A., & Yang, D.
Venue
Nucleic Acids Research
Published
2007-03-29
Volume
35
Issue
7
Pages
2440-2450
ISSN
  • 0305-1048 (ISSN-L)
  • 1362-4962
OpenAlex
W2121069954
Cited by
395
References
41
FWCI
8.62
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Structure of the intramolecular human telomeric G-quadruplex in potassium solution: a novel adenine triple formation. https://app.cochat.ai/papers/10.1093/nar/gkm009
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Dai, J., Punchihewa, C., Ambrus, A., Chen, D., Jones, R. A., & Yang, D. (2007). Structure of the intramolecular human telomeric G-quadruplex in potassium solution: a novel adenine triple formation. Nucleic Acids Research. https://doi.org/10.1093/nar/gkm009

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