A kinetically controlled platform for ligand-oligonucleotide transduction

Qiu-Long Zhang, Liang-Liang Wang, Yan Liu, Jiao Lin and Liang Xu ()
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Qiu-Long Zhang: Sun Yat-Sen University
Liang-Liang Wang: Sun Yat-Sen University
Yan Liu: Sun Yat-Sen University
Jiao Lin: Sun Yat-Sen University
Liang Xu: Sun Yat-Sen University

Nature Communications, 2021, vol. 12, issue 1, 1-11

Abstract: Abstract Ligand-oligonucleotide transduction provides the critical pathway to integrate non-nucleic acid molecules into nucleic acid circuits and nanomachines for a variety of strand-displacement related applications. Herein, a general platform is constructed to convert the signals of ligands into desired oligonucleotides through a precise kinetic control. In this design, the ligand-aptamer binding sequence with an engineered duplex stem is introduced between the toehold and displacement domains of the invading strand to regulate the strand-displacement reaction. Employing this platform, we achieve efficient transduction of both small molecules and proteins orthogonally, and more importantly, establish logical and cascading operations between different ligands for versatile transduction. Besides, this platform is capable of being directly coupled with the signal amplification systems to further enhance the transduction performance. This kinetically controlled platform presents unique features with designing simplicity and flexibility, expandable complexity and system compatibility, which may pave a broad road towards nucleic acid-based developments of sophisticated transduction networks.

Date: 2021
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DOI: 10.1038/s41467-021-24962-4

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