DNA ligase-mediated translation of DNA into densely functionalized nucleic acid polymers.

DNA ligase-mediated translation of DNA into densely functionalized nucleic acid polymers.
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DOI:
10.1021/ja311331m
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发表时间:
2013-01-09
影响因子:
15
通讯作者:
Liu, David R.
Liu, David R.
中科院分区:
化学1区
文献类型:
--
作者:
Hili, Ryan;Niu, Jia;Liu, David R.

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我们开发了一种将DNA序列翻译成密集功能化核酸的方法,该方法通过使用T4 DNA连接酶介导DNA模板聚合含有多种附加功能基团的5′-磷酸化三核苷酸。该聚合沿着DNA模板序列特异性地进行,并且可以以显著的效率产生长度为至少50个结构单元(150个核苷酸)的聚合物。所得的单链高度修饰的核酸是使用深孔(exo-)DNA聚合酶进行引物延伸的合适模板,从而使得能够再生模板DNA。我们整合了这些能力,对修饰的核酸聚合物文库进行体外翻译、选择和模板再生的迭代循环。
We developed a method to translate DNA sequences into densely functionalized nucleic acids by using T4 DNA ligase to mediate the DNA-templated polymerization of 5′-phosphorylated trinucleotides containing a wide variety of appended functional groups. This polymerization proceeds sequence specifically along a DNA template and can generate polymers of at least 50 building blocks (150 nucleotides) in length with remarkable efficiency. The resulting single-stranded highly modified nucleic acid is a suitable template for primer extension using deep vent (exo-) DNA polymerase, thereby enabling the regeneration of template DNA. We integrated these capabilities to perform iterated cycles of in vitro translation, selection, and template regeneration on libraries of modified nucleic acid polymers.
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