Children's Medical Center Corporation

Harvard College

The State University of New York

Mounir Ahmad Koussa

Wesley Philip Wong

Kenneth Anders Halvorsen

Clinton H Hansen

Andrew Ward

Arun Richard Chandrasekaran

Provided herein are nucleic acid-based nanoswitches that can detect specific nucleic acids and other analytes types by for example a simple gel electrophoresis readout. Binding of the target to the nanoswitches induces a conformation change from a linear, open conformation to a looped, closed conformation. These nanoswitches may be used in diagnostic assays such as nucleic acid-based diagnostic assays, to detect, measure and/or purify a variety of targets including low abundance targets.

Compositions and methods for analyte detection using nanoswitches

The invention provides compositions comprising nucleic acid complexes for use in monitoring binding interactions and in measuring association and/or dissociation kinetics, detecting analytes including low concentration analytes, and screening library members. In some instances, the nucleic acid complexes are double-stranded nicked nucleic acids comprising a scaffold nucleic acid hybridized to one or more oligonucleotides. In some instances, a first, a second, a third, and optionally a fourth oligonucleotide are linked to moieties that are known to interact with each other or which are suspected of interacting with each other or of interacting with a common moiety such as an analyte. Changes in topology of the complex are used to determine the binding interactions of the various binding partners.

Nucleic acid-based linkers for detecting and measuring interactions

Systems and apparatus for performing analysis of human biological samples are described. Collected biological samples are combined with a substance including nucleic acid complexes and the combined substance is processed using gel electrophoresis. An indication of a detected compound in the biological sample and/or a particular medical condition associated with the detected compound is output from the apparatus.

Systems and apparatus for detecting compounds in human biological samples

Provided are methods and compositions relating to conjugation of nucleic acids and proteins of interest under conditions that maintain protein activity. The nucleic acid-protein conjugates may be used in nucleic acid nanostructures such as those generated using DNA origami methods.

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Somerville, MA, United States of America

Mounir Ahmad Koussa