Peptide nucleic acids as tools for single-molecule sequence detection and manipulation.

Peptide nucleic acids as tools for single-molecule sequence detection and manipulation.
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DOI:
10.1021/nl102986v
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发表时间:
2010-11-10
期刊:
影响因子:
10.8
通讯作者:
Muller SJ
Muller SJ
中科院分区:
材料科学1区
文献类型:
--
作者:
Zohar H;Hetherington CL;Bustamante C;Muller SJ

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将荧光团和半抗原等修饰强烈且序列特异性地附着到单个双链(ds)DNA分子上的能力对于各种单分子实验至关重要。我们建议使用修饰的肽核酸(PNAs)用于此目的,并实现它们在两个模型的单分子实验中,通过微流体流动和光镊,分别操纵单个DNA分子。我们证明,PNA是通用的和强大的序列特异性系链。
The ability to strongly and sequence-specifically attach modifications such as fluorophores and haptens to individual double-stranded (ds) DNA molecules is critical to a variety of single-molecule experiments. We propose using modified peptide nucleic acids (PNAs) for this purpose and implement them in two model single-molecule experiments where individual DNA molecules are manipulated via microfluidic flow and optical tweezers, respectively. We demonstrate that PNAs are versatile and robust sequence-specific tethers.
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