A novel asymmetric-loop molecular beacon-based two-phase hybridization assay for accurate and high-throughput detection of multiple drug resistance-conferring point mutations in Mycobacterium tuberculosis.

Abstract:

:The accurate and high-throughput detection of drug resistance-related multiple point mutations remains a challenge. Although the combination of molecular beacons with bio-immobilization technology, such as microarray, is promising, its application is difficult due to the ineffective immobilization of molecular beacons on the chip surface. Here, we propose a novel asymmetric-loop molecular beacon in which the loop consists of 2 parts. One is complementary to a target, while the other is complementary to an oligonucleotide probe immobilized on the chip surface. With this novel probe, a two-phase hybridization assay can be used for simultaneously detecting multiple point mutations. This assay will have advantages, such as easy probe availability, multiplex detection, low background, and high-efficiency hybridization, and may provide a new avenue for the immobilization of molecular beacons and high-throughput detection of point mutations.

journal_name

Med Sci Monit

authors

Chen Q,Wu N,Xie M,Zhang B,Chen M,Li J,Zhuo L,Kuang H,Fu W

doi

10.12659/msm.882602

subject

Has Abstract

pub_date

2012-04-01 00:00:00

pages

HY5-8

issue

4

eissn

1234-1010

issn

1643-3750

pii

882602

journal_volume

18

pub_type

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