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Molecules 2013, 18(4), 4328-4341; doi:10.3390/molecules18044328
Article

Evaluation of the Interaction between Long Telomeric DNA and Macrocyclic Hexaoxazole (6OTD) Dimer of a G-quadruplex Ligand

1, 1, 1, 2 and 1,*
Received: 12 March 2013; in revised form: 2 April 2013 / Accepted: 9 April 2013 / Published: 12 April 2013
(This article belongs to the Special Issue Macrocyclic Chemistry)
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Abstract: Macrocyclic hexaoxazole dimer of L2H2-6OTD-dimer (3) was newly synthesized as a telomeric G-quadruplex (G4) ligand, and interaction with long telomeric DNAs telo48, 72, and 96 was evaluated by means of electrophoresis mobility shift assay, CD spectra analysis, and CD melting experiments. The L2H2-6OTD-dimer (3) interacted with the long telomeric DNAs by inducing anti-parallel type G4 structure of each unit of 24 bases, i.e., (TTAGGG)4 sequences. Dimer 3 stabilizes long telomeric DNAs more efficiently than the corresponding monomer of L2H2-6OTD (2). It showed potent inhibitory activity against telomerase, with an IC50 value of 7.5 nm.
Keywords: macrocycles; G-quadruplex; telomestatin; telomere; oxazole macrocycles; G-quadruplex; telomestatin; telomere; oxazole
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Iida, K.; Majima, S.; Nakamura, T.; Seimiya, H.; Nagasawa, K. Evaluation of the Interaction between Long Telomeric DNA and Macrocyclic Hexaoxazole (6OTD) Dimer of a G-quadruplex Ligand. Molecules 2013, 18, 4328-4341.

AMA Style

Iida K, Majima S, Nakamura T, Seimiya H, Nagasawa K. Evaluation of the Interaction between Long Telomeric DNA and Macrocyclic Hexaoxazole (6OTD) Dimer of a G-quadruplex Ligand. Molecules. 2013; 18(4):4328-4341.

Chicago/Turabian Style

Iida, Keisuke; Majima, Satoki; Nakamura, Takahiro; Seimiya, Hiroyuki; Nagasawa, Kazuo. 2013. "Evaluation of the Interaction between Long Telomeric DNA and Macrocyclic Hexaoxazole (6OTD) Dimer of a G-quadruplex Ligand." Molecules 18, no. 4: 4328-4341.


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