Individual RNA base recognition in immobilized oligonucleotides using a protein nanopore.
Individual RNA base recognition in immobilized oligonucleotides using a protein nanopore.
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DOI:
10.1021/nl3027873
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发表时间:
2012-11-14
期刊:
影响因子:
10.8
通讯作者:
Bayley H
中科院分区:
文献类型:
--
作者:
Ayub M;Bayley H
Protein nanopores are under investigation as key components of rapid, low-cost platforms to sequence DNA molecules. Previously, it has been shown that the α-hemolysin (αHL) nanopore contains three recognition sites, capable of discriminating between individual DNA bases when oligonucleotides are immobilized within the nanopore. However, the direct sequencing of RNA is also of critical importance. Here, we achieve sharply defined current distributions that enable clear discrimination of the four nucleobases, guanine, cytosine, adenine and uracil, in RNA. Further, the modified bases, inosine, N6-methyladenosine and N5-methylcytosine, can be distinguished.
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