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Updated: Aug 1, 2025

Wild-type Blocking PCR Combined with Direct Sequencing as a Highly Sensitive Method for Detection of Low-Frequency Somatic Mutations

Wild-type Blocking PCR Combined with Direct Sequencing as a Highly Sensitive Method for Detection of Low-Frequency Somatic Mutations

Published on: March 29, 2017

Single duplex DNA sequencing with CODEC detects mutations with high sensitivity.

Jin H Bae¹, Ruolin Liu¹, Eugenia Roberts¹

¹Broad Institute of MIT and Harvard, Cambridge, MA, USA.

Nature Genetics

|April 27, 2023

Summary

This summary is machine-generated.

Concatenating Original Duplex for Error Correction (CODEC) significantly improves DNA mutation detection accuracy from single molecules. This method enhances next-generation sequencing (NGS) capabilities, enabling precise genetic analysis and discovery of subtle mutations.

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Area of Science:

Genomics
Molecular Biology
Biotechnology

Background:

Accurate detection of DNA mutations from single molecules is essential but technically difficult.
Next-generation sequencing (NGS) has high throughput but struggles with discerning true mutations on double-stranded DNA.
Existing methods lack the resolution to identify low-frequency mutations reliably.

Purpose of the Study:

To introduce Concatenating Original Duplex for Error Correction (CODEC) for single DNA duplex resolution in NGS.
To enhance the accuracy and efficiency of mutation detection from single DNA molecules.
To enable the discovery of biologically significant mutations previously obscured by sequencing errors.

Main Methods:

Developed CODEC technology to confer single duplex resolution to NGS.
Applied CODEC to analyze mutation frequencies in human sperm and blood cells.
Utilized CODEC for detecting clonal hematopoiesis, tumor mutations, and microsatellite instability.

Main Results:

CODEC achieved 1,000-fold higher accuracy compared to standard NGS.
CODEC required up to 100-fold fewer reads than traditional duplex sequencing.
Identified mutation frequencies as low as 2.72 × 10^-8 in sperm and age-related somatic mutations.
Detected genome-wide mutations, including clonal hematopoiesis and tumor-specific mutations from liquid biopsies with high sensitivity.

Conclusions:

CODEC significantly advances the accuracy and sensitivity of mutation detection from single DNA molecules.
This technology enables more precise genetic testing and the identification of critical mutations.
CODEC overcomes limitations of standard NGS, revealing biologically relevant mutations with unprecedented clarity.