To expand the sequence of double-stranded DNA (dsDNA) targets in a triplex formation, 2′,4′-BNAs (2′-O,4′-C-methylene bridged nucleic acids) having imidazoles as a nucleobase were synthesized and incorporated into oligonucleotides. Triplex-forming ability of the modified oligonucleotides was evaluated by using melting temperature (Tm) measurements.
为了以三链体形式扩展双链 DNA (dsDNA) 靶标的序列,合成并掺入了具有咪唑作为核碱基的 2',4'-BNA(2'-O,4'-C-亚甲基桥核酸)成寡核苷酸。通过使用解链温度 (Tm) 测量来评估修饰寡核苷酸的三链体形成能力。