Synthesis and Triplex Formation of Oligonucleotides Containing 8-Thioxodeoxyadenosine
作者:Ken-ichi Miyata、Ryuji Tamamushi、Hirosuke Tsunoda、Akihiro Ohkubo、Kohji Seio、Mitsuo Sekine
DOI:10.1021/ol802622s
日期:2009.2.5
For more effective DNA triplex formation under neutral conditions, we synthesized triplex-forming oligonucleotides containing 8-thioxodeoxyadenosine (s(8)dA) residues in place of the protonated deoxycytidines required for the third base pairing with DNA duplexes. Consequently, it was found that s(8)dA exhibited much stronger hybridization ability than dC under neutral conditions when four s(8)dA bases were arranged in a consecutive sequence.