[No authors listed]
Exon 2 deletion of aminoacyl tRNA synthetase complex-interacting multifunctional protein 2 (AIMP2) is a genetic deletion related to various cancers, for instance ovarian and lung cancers. It can be worked as an indicator of cancer for diagnosis of diseases. Here, we developed a label-free method based on the formation of split G-quadruplex in the presence of target DNA combined with strand displacement to detect exon 2 deletion of AIMP2 (DE2) sensitively and selectively. This method is easy-operating and cost-saving. Moreover, it has observed discrimination of gene deletion from wild-types by naked eyes. The results demonstrate that this strategy can be further used for the detection of different gene deletions to achieve early diagnosis of diseases and allow better prognosis.
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