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Updated: Jun 4, 2026

On-chip Isotachophoresis for Separation of Ions and Purification of Nucleic Acids

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Temperature Gradient Capillary Electrophoresis (TGCE) Assay.

An-Ping Hsia¹, Hsin D Chen, Patrick S Schnable

¹Department of Agronomy, Iowa State University, Ames, IA 50011, USA.

|March 2, 2011

Summary

This summary is machine-generated.

Temperature gradient capillary electrophoresis (TGCE) detects DNA polymorphisms by analyzing homoduplexes and heteroduplexes formed after PCR amplification and reannealing. This method efficiently identifies genetic variations within or between individuals.

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Sheathless Capillary Electrophoresis–Mass Spectrometry for Metabolic Profiling of Biological Samples

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Published on: October 1, 2016

Area of Science:

Molecular Biology
Genetics
Biochemistry

Background:

DNA polymorphisms can be detected using various molecular techniques.
Temperature Gradient Capillary Electrophoresis (TGCE) offers a sensitive method for analyzing DNA fragment variations.
Understanding genetic variations is crucial in fields ranging from diagnostics to evolutionary studies.

Purpose of the Study:

To describe a protocol for using TGCE to detect polymorphisms between two DNA fragments.
To outline a method for identifying genetic variations within or between individuals.

Main Methods:

PCR amplification of target DNA fragments using high-fidelity Taq polymerase.
Mixing of amplified alleles (interest and reference) in a 1:1 ratio, followed by denaturation and reannealing to form homoduplexes and heteroduplexes.
Electrophoresis and detection using the Reveal System, with data analysis via Revelation software.

Main Results:

The TGCE method allows for the detection of polymorphisms through the formation of heteroduplexes.
The Reveal System enables high-throughput analysis of multiple samples.
The protocol provides a framework for scoring and viewing polymorphism data.

Conclusions:

TGCE is an effective technique for identifying DNA polymorphisms.
This protocol facilitates the detection of genetic variations with potential applications in various biological and medical research areas.