LNA (Locked Nucleic Acids): Synthesis of the adenine, cytosine, guanine, 5-methylcytosine, thymine and uracil bicyclonucleoside monomers, oligomerisation, and unprecedented nucleic acid recognition

LNA (Locked Nucleic Acids): Synthesis of the adenine, cytosine, guanine, 5-methylcytosine, thymine and uracil bicyclonucleoside monomers, oligomerisation, and unprecedented nucleic acid recognition
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DOI:
10.1016/s0040-4020(98)00094-5
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发表时间:
1998-04-01
期刊:
影响因子:
2.1
通讯作者:
Wengel, J
Wengel, J
中科院分区:
化学3区
文献类型:
--
作者:
Koshkin, AA;Singh, SK;Wengel, J

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由2 '-O,4'-C-亚甲基双环苷单体组成的LNA(锁核酸)被有效地合成,并且其核酸识别潜力被评估为六种不同的核碱基,即腺嘌呤、胞嘧啶、鸟嘌呤、5-甲基胞嘧啶、胸腺嘧啶和尿嘧啶。当评估部分或完全修饰的LNA的混合序列时,获得了双链体对DNA和RNA的热稳定性的前所未有的增加(每次修饰+3至+8 ℃)。错配序列的研究表明,LNA遵守沃森-克里克碱基配对规则,与相应的未修饰的参考链相比,选择性普遍提高。(C)1998爱思唯尔科技有限公司版权所有。
LNA (Locked Nucleic Acids), consisting of 2'-O,4'-C-methylene bicyclonucleoside monomers, is efficiently synthesized and its nucleic acid recognition potential evaluated for six different nucleobases, namely adenine, cytosine, guanine, 5-methylcytosine, thymine and uracil. Unprecedented increases (+3 to +8 degrees C per modification) in the thermal stability of duplexes towards both DNA and RNA were obtained when evaluating mixed sequences of partly or fully modified LNA. Studies of mis-matched sequences show that LNA obey the Watson-Crick base pairing rules with generally improved selectivities compared to the corresponding unmodified reference strands. (C) 1998 Elsevier Science Ltd. All rights reserved.