Cooperative hybridization of DNA conjugates and its analytical application.
Anthracene readily forms photoadducts (anthracene dimers). This photodimerization reaction has been well characterized. However the reaction generally requires close proximity and certain spatial alignment of both reaction partners. DNA could provide an ideal scaffold for accelerating the photocyclic addition. We synthesized a number of anthracene-DNA conjugates. The sequences of the conjugates, 5'AntODN6 and 3'AntODN6, were designed to bind adjacent sequences of the template with the anthracene units directed such that they stacked with each other. The conjugates were only dimerized in the presence of the template by light irradiation. The efficiency was affected by one-base displacement in the template sequence.
Ihara
Toshihiro
T
Department of Applied Chemistry and Biochemistry, Faculty of Engineering, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan.
Mukae
Motoko
M
Fujii
Tomohiro
T
Kitamura
Yusuke
Y
Jyo
Akinori
A
D000873:Anthracenes / Q000737:chemistry; D004247:DNA / Q000737:chemistry* / Q000528:radiation effects; D019281:Dimerization; D009691:Nucleic Acid Denaturation / Q000528:radiation effects; D009693:Nucleic Acid Hybridization / Q000528:radiation effects; D009838:Oligodeoxyribonucleotides / Q000737:chemistry / Q000528:radiation effects; D014466:Ultraviolet Rays
D000873:Anthracenes; D009838:Oligodeoxyribonucleotides; D004247:DNA; C034020:anthracene