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Nature methods

DNA nanoswitches: a quantitative platform for gel-based biomolecular interaction analysis.


PMID 25486062

Abstract

We introduce a nanoscale experimental platform that enables kinetic and equilibrium measurements of a wide range of molecular interactions using a gel electrophoresis readout. Programmable, self-assembled DNA nanoswitches serve both as templates for positioning molecules and as sensitive, quantitative reporters of molecular association and dissociation. We demonstrated this low-cost, versatile, 'lab-on-a-molecule' system by characterizing ten different interactions, including a complex four-body interaction with five discernible states.

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