Multispot Array Combined with S1 Nuclease-Mediated Elimination of Unpaired Nucleotides
Biochip journal(2015)
摘要
The accurate detection of mismatched base pairs is critical to many DNA hybridization-based applications in basic research and diagnostics. We herein demonstrate that mismatched DNAs on a multispot array can be accurately detected in a multiplexed way by employing the S1 nuclease-based mismatched base pair-specific cleavage system. After the optimization of the reaction condition, mismatched DNAs present in various pathogenic bacteria and genetic disorders could be successfully detected with stable hybridization signals regardless of the position of the fluorescent label relative to the probe-target duplex. This technique of performing S1 nuclease-mediated cleavage on a multispot array offers high specificity and high-throughput detection of mismatched DNAs. It is expected that this assay system will prove useful for single-assay genotyping and/or the diagnosis of various diseases and pathogens.
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关键词
S1 nuclease,Enzymatic cleavage,Multispot array,DNA,Single mutation
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