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Updated: Mar 10, 2026

Enhanced Reduced Representation Bisulfite Sequencing for Assessment of DNA Methylation at Base Pair Resolution
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Direct Quantitative Bisulfite Sequencing Using Tag-modified Primers and Internal Normalization.

Dimo Dietrich1,2

  • 1Institute of Pathology, University Hospital Bonn, Bonn, Germany dimo.dietrich@gmail.com.

Anticancer Research
|December 7, 2016
PubMed
Summary
This summary is machine-generated.

This study presents a simple, direct quantitative bisulfite sequencing method for accurate DNA methylation analysis at single CpG sites. The technique utilizes tag-modified primers for reliable internal normalization in polymerase chain reaction (PCR) products.

Keywords:
DNA methylationSanger methoddirect quantitative bisulfite sequencinginternal normalization

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Area of Science:

  • Molecular Biology
  • Genetics
  • Epigenetics

Background:

  • DNA methylation analysis is crucial for understanding gene regulation and disease.
  • Bisulfite conversion followed by PCR and sequencing is a common method for analyzing DNA methylation at single CpG sites.
  • Existing methods can be complex or lack precise quantification.

Purpose of the Study:

  • To develop a simple and accurate method for direct quantitative bisulfite sequencing.
  • To enable precise analysis of DNA methylation at single CpG sites.
  • To provide a reliable internal normalization signal within PCR products.

Main Methods:

  • Direct quantitative bisulfite sequencing based on the Sanger sequencing method.
  • Utilized tag-modified primers for internal normalization.
  • Applied to analyze DNA methylation patterns at single CpG sites.

Main Results:

  • Demonstrated the usability of the method for accurate analysis of single CpG sites.
  • Achieved reliable internal normalization within PCR products using tag-modified primers.
  • Showcased a simple approach for quantitative DNA methylation analysis.

Conclusions:

  • The developed method offers a straightforward and accurate approach for single CpG site DNA methylation analysis.
  • Tag-modified primers provide an effective internal control for quantitative bisulfite sequencing.
  • This technique is valuable for epigenetic research requiring high-resolution methylation data.