Synthesis and duplex-forming ability of oligonucleotides modified with 4′-C,5′-C-methylene-bridged nucleic acid (4′,5′-BNA)

被引:2
|
作者
Yamaguchi, Takao [1 ]
Yamamoto, Chika [1 ]
Horiba, Masahiko [1 ]
Aoyama, Hiroshi [1 ]
Obika, Satoshi [1 ,2 ]
机构
[1] Osaka Univ, Grad Sch Pharmaceut Sci, 1-6 Yamadaoka, Suita, Osaka 5650871, Japan
[2] Natl Inst Biomed Innovat Hlth & Nutr, 7-6-8 Saito Asagi, Ibaraki, Osaka 5670085, Japan
基金
日本学术振兴会;
关键词
Artificial nucleic acid; Therapeutic oligonucleotide; Duplex-forming ability; Nuclease resistance; BASE-PAIRING PROPERTIES; BIOPHYSICAL PROPERTIES; BICYCLO-DNA; ANALOG; CONFORMATIONS; STABILITY; BACKBONE; SEQUENCE; PROFILE; DESIGN;
D O I
10.1016/j.bmc.2021.116359
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
We describe herein the design and synthesis of 4'-C,5'-C-methylene-bridged nucleic acid (4',5'-BNA), a novel artificial nucleic acid with the torsion angle gamma in a non-canonical +ac range. The 4',5'-BNA phosphoramidite bearing a thymine nucleobase was synthesized from a commercially available thymidine analog in 11 steps and successfully incorporated into oligonucleotides. The resulting oligonucleotides were evaluated for their duplex-forming ability toward single-stranded DNA and RNA.
引用
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页数:6
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