Related Experiment Video
Updated: Jun 2, 2026

08:25
Identification of Circular RNAs using RNA Sequencing
Published on: November 14, 2019
Small RNA library preparation for next-generation sequencing by single ligation, extension and circularization
1Department of Bioscience & Biotechnology, Sejong University, 98 Kunja-dong, Kwangjin-gu, Seoul, Republic of Korea. yngskwon@sejong.ac.kr
Biotechnology Letters
|April 12, 2011
Summary
High-throughput sequencing aids small RNA discovery. A new single ligation, extension and circularization (SLEC) method efficiently identifies known and novel small RNAs, including mirtron candidates.
Area of Science:
- Molecular Biology
- Genomics
- Bioinformatics
Background:
- High-throughput sequencing has advanced the discovery of novel small RNAs.
- Increasing sequence coverage diminishes the likelihood of finding new small RNAs with existing methods.
- A need exists for improved small RNA library preparation techniques.
Purpose of the Study:
- To introduce and evaluate the single ligation, extension and circularization (SLEC) method for small RNA library preparation.
- To assess the efficiency of the SLEC method in identifying known and novel small RNAs.
- To demonstrate the SLEC method's suitability for high-throughput sequencing and multiplex analysis.
Main Methods:
- Development of the single ligation, extension and circularization (SLEC) method for small RNA library preparation.
- Application of the SLEC method to human small RNA samples.
- Analysis of small RNA libraries generated using the SLEC method via high-throughput sequencing.
Main Results:
- The SLEC method is faster and simpler than conventional procedures.
- Libraries prepared by the SLEC method are compatible with high-level multiplex analysis.
- The SLEC method successfully identified known small RNAs and novel small RNAs, including 25 mirtron candidates.
Conclusions:
- The SLEC method is an effective alternative for small RNA library preparation.
- This method enhances the identification of both known and novel small RNAs.
- The SLEC approach is well-suited for high-throughput sequencing applications in small RNA research.
Related Concept Videos
RNA-seq
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.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...
Next-generation Sequencing
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
Although all next-generation methods use different technologies, they all share a set of standard features.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features.
