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Crown ether-electrolyte interactions permit nanopore detection of individual DNA abasic sites in single molecules.冠醚-电解质相互作用允许在单个分子中单碱基错配的单个 DNA 碱基的纳米孔检测。
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Reading DNA at single-nucleotide resolution with a mutant MspA nanopore and phi29 DNA polymerase.利用突变型 MspA 纳米孔和 phi29 DNA 聚合酶实现单核苷酸分辨率下的 DNA 读取。
Nat Biotechnol. 2012 Mar 25;30(4):349-53. doi: 10.1038/nbt.2171.
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Automated forward and reverse ratcheting of DNA in a nanopore at 5-Å precision.在纳米孔中以 5Å 的精度实现 DNA 的自动正向和反向棘轮作用。
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Nucleobase recognition at alkaline pH and apparent pKa of single DNA bases immobilised within a biological nanopore.在碱性 pH 值下的碱基识别和固定在生物纳米孔内的单个 DNA 碱基的表观 pKa。
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Controlled translocation of individual DNA molecules through protein nanopores with engineered molecular brakes.利用工程化分子刹车控制单个 DNA 分子穿过蛋白质纳米孔的转运。
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Nanopore detection of 8-oxo-7,8-dihydro-2'-deoxyguanosine in immobilized single-stranded DNA via adduct formation to the DNA damage site.通过与 DNA 损伤部位形成加合物,在固定化单链 DNA 中对 8-氧代-7,8-二氢-2'-脱氧鸟苷进行纳米孔检测。
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Emergence of symmetry and chirality in crown ether complexes with alkali metal cations.冠醚配合物与碱金属阳离子的对称性和手性的出现。
J Phys Chem A. 2010 Jul 8;114(26):7048-54. doi: 10.1021/jp103389g.
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Urea facilitates the translocation of single-stranded DNA and RNA through the alpha-hemolysin nanopore.尿素促进单链 DNA 和 RNA 通过α-溶血素纳米孔的易位。
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Molecular bases of cyclodextrin adapter interactions with engineered protein nanopores.环糊精适配体与工程蛋白纳米孔相互作用的分子基础。
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Multiple base-recognition sites in a biological nanopore: two heads are better than one.生物纳米孔中的多个碱基识别位点:两个总比一个好。
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调节α-溶血素离子通道中 DNA 无碱基位点加合物的电流特征。

Modulation of the current signatures of DNA abasic site adducts in the α-hemolysin ion channel.

机构信息

Department of Chemistry, University of Utah, Salt Lake City, USA.

出版信息

Chem Commun (Camb). 2012 Dec 4;48(93):11410-2. doi: 10.1039/c2cc36366f. Epub 2012 Oct 17.

DOI:10.1039/c2cc36366f
PMID:23076012
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3738171/
Abstract

Electrical current signatures of DNA adducts were investigated during immobilization of strands inside the membrane-bound α-hemolysin ion channel. The current blockages produced by these adducts were found to depend on both size and shape, providing insights into the DNA-protein interactions and the size limitation of bulky adducts to be translocated.

摘要

在将 DNA 链固定在膜结合的α-溶血素离子通道内时,研究了 DNA 加合物的电流特征。这些加合物产生的电流阻断取决于大小和形状,为 DNA-蛋白质相互作用和大体积加合物的迁移大小限制提供了深入了解。