Related Experiment Video
Updated: Aug 21, 2025

08:25
Identification of Circular RNAs using RNA Sequencing
Published on: November 14, 2019
12.3K
vsRNAfinder: a novel method for identifying high-confidence viral small RNAs from small RNA-Seq data
1Bioinformatics Center, College of Biology, Hunan Provincial Key Laboratory of Medical Virology, Hunan University, Changsha 410082, China.
Briefings in Bioinformatics
|November 15, 2022
Summary
We developed vsRNAfinder, a new tool for identifying viral small RNAs (vsRNAs) from sequencing data. This method improves sensitivity for detecting viral microRNAs (miRNAs) and works for animal and plant sRNAs.
Area of Science:
- Virology
- Bioinformatics
- Molecular Biology
Background:
- Virus-encoded small RNAs (vsRNAs) are crucial in viral infections.
- Current methods for identifying vsRNAs lack effectiveness and sensitivity.
Purpose of the Study:
- To introduce vsRNAfinder, a novel de novo method for high-confidence vsRNA identification.
- To evaluate vsRNAfinder's performance against existing tools like miRDeep2 and ShortStack.
Main Methods:
- vsRNAfinder utilizes peak calling and Poisson distribution for identifying vsRNAs.
- The method analyzes small RNA-Seq (sRNA-Seq) data.
- It is publicly available on GitHub.
Main Results:
- vsRNAfinder demonstrated superior sensitivity in identifying viral microRNAs (miRNAs) compared to miRDeep2 and ShortStack.
- The tool showed comparable performance to miRDeep2 and ShortStack for identifying small RNAs in animals and plants.
Conclusions:
- vsRNAfinder offers a significant advancement in the accurate and sensitive identification of vsRNAs.
- This tool will greatly aid researchers in studying viral small RNAs from sRNA-Seq data.
Related Concept Videos
RNA-seq
10.3K
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...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
10.3K
siRNA - Small Interfering RNAs
16.9K
Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
16.9K
Small interfering RNAs (siRNA)
3.6K
3.6K
RNA Interference
26.3K
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
26.3K
Viruses with RNA Genomes
89
RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...
89

