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Updated: Dec 18, 2025

Parallel High Throughput Single Molecule Kinetic Assay for Site-Specific DNA Cleavage

Parallel High Throughput Single Molecule Kinetic Assay for Site-Specific DNA Cleavage

Published on: May 6, 2020

High-throughput methods for measuring DNA thermodynamics.

Jin H Bae¹, John Z Fang¹, David Yu Zhang^1,2

¹Department of Bioengineering, Rice University, Houston, TX, USA.

Nucleic Acids Research

|June 17, 2020

Summary

This summary is machine-generated.

We developed Toehold Exchange Energy Measurement (TEEM), a high-throughput method for accurate DNA motif thermodynamics. TEEM overcomes limitations of melt curve analysis for predicting and designing DNA probes and primers.

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Area of Science:

Molecular Biology
Biophysics
Thermodynamics

Background:

Accurate DNA motif thermodynamics are crucial for designing DNA probes and primers.
Traditional melt curve analyses are low-throughput and yield inaccurate data for complex DNA structures like bulges and mismatches.

Purpose of the Study:

To develop a novel, high-throughput, and accurate method for measuring DNA motif thermodynamics.
To provide a more reliable alternative to existing low-throughput and inaccurate methods.

Main Methods:

Developed Toehold Exchange Energy Measurement (TEEM), a novel framework based on comparing two toehold exchange reactions.
Utilized competitive strand displacement between oligonucleotides within the TEEM framework.

Main Results:

TEEM enables high-throughput measurement of over 1000 thermodynamic (ΔG°) values in a single experiment.
Achieved high accuracy with a standard error of approximately 0.05 kcal/mol for measured ΔG° values.

Conclusions:

TEEM offers a significant advancement in measuring DNA motif thermodynamics.
The method provides accurate and high-throughput data essential for DNA probe and primer design and prediction.