Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 24, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/ijms24108483
Keywords
light-up split Broccoli aptamer; RNA self-assembly monitoring; cell-free TX-TL system; hybrid RNA; DNA origami; target DNA detection; Campylobacter spp
Ask authors/readers for more resources
Binary light-up aptamers are versatile tools for various applications. We demonstrated the functionality of a split Broccoli aptamer system that only emits fluorescence in the presence of a complementary sequence. The system was successfully assembled in an E. coli-based cell-free TX-TL system and a hybrid RNA/DNA rectangle origami, showing the effectiveness of the split system. The system was also used to detect a Campylobacter spp. DNA target sequence, highlighting its potential applications in real-time monitoring and detection of nucleic-acid-based devices.
Binary light-up aptamers are intriguing and emerging tools with potential in different fields. Herein, we demonstrate the versatility of a split Broccoli aptamer system able to turn on the fluorescence signal only in the presence of a complementary sequence. First, an RNA three-way junction harbouring the split system is assembled in an E. coli-based cell-free TX-TL system where the folding of the functional aptamer is demonstrated. Then, the same strategy is introduced into a 'bio-orthogonal' hybrid RNA/DNA rectangle origami characterized by atomic force microscopy: the activation of the split system through the origami self-assembly is demonstrated. Finally, our system is successfully used to detect the femtomoles of a Campylobacter spp. DNA target sequence. Potential applications of our system include the real-time monitoring of the self-assembly of nucleic-acid-based devices in vivo and of the intracellular delivery of therapeutic nanostructures, as well as the in vitro and in vivo detection of different DNA/RNA targets.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available