Systematic optimization and modification of a DNA aptamer with 2'-O-methyl RNA analogues.
Systematic optimization and modification of a DNA aptamer with 2'-O-methyl RNA analogues.
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DOI:
10.1002/slct.201700359
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发表时间:
2017-03-01
期刊:
影响因子:
2.1
通讯作者:
Mallikaratchy P
中科院分区:
文献类型:
--
作者:
Maio G;Enweronye O;Zumrut HE;Batool S;Van N;Mallikaratchy P
Nucleic acid aptamers (NAAs) are short synthetic DNA or RNA molecules that specifically fold into distinct three-dimensional structures able to specifically recognize a target. While NAAs show unprecedented promise in a variety of applications, including sensing, therapeutics and diagnostics, one major limitation involves the lack of stability towards omnipresent nucleases. Therefore, we herein report a systematic truncation and incorporation of 2′-O-methyl bases to a DNA aptamer, which results in increased stability without affecting affinity. One of the newly designed analogues is stable up to 24 hours, demonstrating that 2′-O-methyl RNA is an attractive modification to DNA aptamers, especially when therapeutic applications are intended. The systematic truncation and incorporation of 2′-O-methyl bases to a DNA aptamer resulted in increased stability without affecting affinity.
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