Related Experiment Video
Updated: Jul 18, 2026
13:11
Optimized Analysis of DNA Methylation and Gene Expression from Small, Anatomically-defined Areas of the Brain
Published on: July 12, 2012
Rapid and quantitative method of allele-specific DNA methylation analysis
Hui-Lee Wong1, Hyang-Min Byun, Jennifer M Kwan
1University of Southern California, Los Angeles, CA 90089, USA.
Biotechniques
|December 29, 2006
Summary
We developed a new, fast method to measure allele-specific DNA methylation using bisulfite PCR and Pyrosequencing. This technique accurately quantifies methylation patterns, crucial for understanding gene regulation and various biological processes.
Area of Science:
- Epigenetics and Molecular Biology
- Genetics and Genomics
Background:
- Differential methylation of DNA is critical for numerous biological processes.
- Existing methods for allele-specific methylation analysis are often quantitative or labor-intensive.
Purpose of the Study:
- To introduce a novel, rapid, and quantitative method for assessing allele-specific DNA methylation.
- To demonstrate the utility of this method for analyzing imprinted genes and other epigenetic phenomena.
Main Methods:
- Combines bisulfite treatment of DNA, polymerase chain reaction (PCR) amplification, and allele-specific pyrosequencing.
- Utilizes single nucleotide polymorphisms (SNPs) to differentiate parental alleles for precise methylation quantification.
- Applied to analyze the differentially methylated region of the imprinted H19 gene.
Main Results:
- Successfully quantitated allele-specific methylation using the developed bisulfite PCR and pyrosequencing method.
- Demonstrated reliable determination of allele-specific methylation patterns.
- The method shows potential for quantitative analysis in various epigenetic contexts.
Conclusions:
- The novel method provides a rapid and quantitative approach to measure allele-specific DNA methylation.
- This technique has broad applications in studying X chromosome inactivation, immune gene expression, and genomic imprinting.
- Further studies are needed to validate its performance in detecting loss of imprinting.
