Single-molecule-based detection of conserved influenza A virus RNA promoter using a protein nanopore = 단백질 나노포어를 활용한 보존된 인플루엔자 A 바이러스 RNA 프로모터의 단분자 기반 측정

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Title
Single-molecule-based detection of conserved influenza A virus RNA promoter using a protein nanopore = 단백질 나노포어를 활용한 보존된 인플루엔자 A 바이러스 RNA 프로모터의 단분자 기반 측정
Author(s)
Sohee Oh; Mi-Kyung LeeSeung-Wook Chi
Bibliographic Citation
ACS Sensors, vol. 4, no. 11, pp. 2849-2853
Publication Year
2019
Abstract
Influenza A viruses (IAVs) cause annual epidemic and severe pandemic outbreaks worldwide and result in high mortality. Despite the importance of surveillance for preventing IAV infection, the existing techniques are inefficient for ultrasensitive diagnosis in real time. In this study, we performed protein nanopore-based measurements to detect the highly conserved IAV RNA promoter at the single-molecule level. The binding of specific DNA probes to the IAV RNA promoter generated two types of characteristic nanopore signatures with single or double spikes of current blockade and substantially increased dwell times, which facilitated the discrimination of the IAV promoter from nonspecific macromolecules. Our DNA probe-mediated nanopore sensor will serve as an ultrasensitive, real-time, point-of-care diagnostic tool for highly pathogenic IAVs.
Keyword
DNA probeInfluenza A virusRNA promoterbiological nanoporeα-hemolysin
ISSN
2379-3694
Publisher
Amer Chem Soc
DOI
http://dx.doi.org/10.1021/acssensors.9b01558
Type
Article
Appears in Collections:
Division of Biomedical Research > Disease Target Structure Research Center > 1. Journal Articles
Division of Biomedical Research > 1. Journal Articles
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