Unexpectedly stable homopurine parallel triplex of SNA:RNA*SNA and l-aTNA:RNA*l-aTNA
文献信息
发布日期
2023-12-21
DOI
10.1039/D3CC05555H
影响因子
6.222
作者
Siyuan Lao, Jumpei Ariyoshi, Fuminori Sato, Hiroyuki Asanuma
查看原文
摘要
Homopurine strands are known to form antiparallel triplexes stabilized by G*G and A*A Hoogsteen pairs, which have two hydrogen bonds. But there has been no report on the parallel triplex formation of homopurine involving both adenosine and guanosine to the duplex. In this paper, we first report parallel triplex formation between a homopurine serinol nucleic acid (SNA) strand and an RNA/SNA duplex. Melting profiles revealed that the parallel SNA:RNA*SNA triplex was remarkably stable, even though the A*A pair has a single hydrogen bond. An L-acyclic threoninol nucleic acid (L-aTNA) homopurine strand also formed a stable parallel triplex with an L-aTNA/RNA duplex.
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来源期刊
Chemical Communications
CiteScore:
8.6
自引率:
4.7%
年发文量:
2458
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