Development of novel artificial nucleosides for expansion of triplex-recognition codes

Yosuke Taniguchi, Shigeki Sasaki

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Triplex-forming oligonucleotides (TFOs) are potential DNA-targeting molecules, and would become powerful tools for genomic research. However, the problem that the stable triplexes form only with homopurine: homopyrimidine sequences has not been generally solved in spite of extensive studies. In this study we have developed new base analogs (WNA) constructed of three parts, a benzene ring, a heterocyclic ring, and a bicyclic skeleton to hold these two parts. Among a number of WNA analogs, we have determined two useful WNA analogs, WNA-βT and WNA-βC, for selective stabilization of triplexes at a TA and a CG interrupting site with higher stability than the natural-type triplexes, respectively. The results of this study will provide useful information for the design of new WNA analogs to overcome inherent problems for further expansion of triplex recognition codes.

Original languageEnglish
Pages (from-to)1026-1037
Number of pages12
JournalYuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry
Issue number10
Publication statusPublished - Oct 2004

All Science Journal Classification (ASJC) codes

  • Organic Chemistry


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