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Related Concept Videos

Next-generation Sequencing03:00

Next-generation Sequencing

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The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
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Sanger Sequencing01:57

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DNA sequencing is a fundamental technique that is routinely used in the biological sciences. This method can be applied to a range of questions at different scales - from the sequencing of a cloned DNA fragment or the study of a mutation in a gene up to whole-genome sequencing. However, despite the widespread use of sequencing today, it was not until 1977 that Fredrick Sanger and his collaborators developed the chain-termination method to decode DNA sequences. It relies on the separation of a...
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RNA-seq03:21

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RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases. 
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Updated: Jun 15, 2025

Rare Event Detection Using Error-corrected DNA and RNA Sequencing
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A correctable decoding DNA sequencing with high accuracy and high throughput.

Chu Cheng1, Qingzhou Cheng1, Wei Zhou1

  • 1College of Medicine and Health Science, Wuhan Polytechnic University, Wuhan, China. chengchu@whpu.edu.cn.

Analytical Methods : Advancing Methods and Applications
|August 22, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces a new DNA sequencing method for higher accuracy. The correctable two-color fluorogenic DNA decoding sequencing approach significantly reduces errors in genomic variation detection.

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Area of Science:

  • Genomics
  • Molecular Biology
  • Biotechnology

Background:

  • Next-generation sequencing (NGS) technologies face challenges in achieving high accuracy and throughput.
  • Error elimination is crucial for reliable genomic analysis and medical applications.

Purpose of the Study:

  • To present a novel DNA sequencing strategy, correctable two-color fluorogenic DNA decoding sequencing, to enhance accuracy and throughput.
  • To demonstrate the method's capability in error detection and correction for precise genomic variation identification.

Main Methods:

  • Utilizes dual-nucleotide addition and fluorogenic sequencing-by-synthesis (SBS) chemistry.
  • Employs a cyclical, two-step interrogation of DNA templates with specific nucleotide combinations.
  • Introduces a mixture of natural, labeled unblocked, and blocked nucleotides in each cycle.

Main Results:

  • Achieves a theoretical error rate of 0.0005%, surpassing Sanger sequencing accuracy by twofold.
  • Successfully detects and corrects sequencing errors, enabling accurate base sequence deduction.
  • Demonstrates the ability to identify known mutation sites from a single sequencing run.

Conclusions:

  • The correctable two-color fluorogenic DNA decoding sequencing method offers superior accuracy and throughput.
  • This approach facilitates the identification of extremely rare genomic variations.
  • Potential applications span diverse fields in biology and medicine, improving diagnostic capabilities.