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Related Concept Videos

RNA-seq03:21

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...
MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
MicroRNAs01:22

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
Proteomics01:33

Proteomics

A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term proteomics...

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Related Experiment Video

Updated: Jun 13, 2026

High Throughput MicroRNA Profiling: Optimized Multiplex qRT-PCR at Nanoliter Scale on the Fluidigm Dynamic ArrayTM IFCs
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Published on: August 3, 2011

mirTools: microRNA profiling and discovery based on high-throughput sequencing.

Erle Zhu1, Fangqing Zhao, Gang Xu

  • 1Institute of Genomic Medicine/Zhejiang Provincial Key Laboratory of Medical Genetics, Wenzhou, China.

Nucleic Acids Research
|May 19, 2010
PubMed
Summary

Researchers developed mirTools, a web server for analyzing small RNA transcriptomes. This tool aids in filtering, aligning, classifying, annotating, and predicting microRNAs (miRNAs), facilitating miRNA research.

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Area of Science:

  • Bioinformatics
  • Molecular Biology
  • Genomics

Background:

  • MicroRNAs (miRNAs) are key regulators of gene expression involved in development and disease.
  • Current computational methods for small RNA transcriptome analysis lag behind technological advancements.

Purpose of the Study:

  • To develop a comprehensive web server, mirTools, for the characterization of small RNA transcriptomes.
  • To provide researchers with integrated tools for analyzing miRNA data from deep sequencing.

Main Methods:

  • Development of a web server integrating multiple computational approaches.
  • Implementation of read filtering, adapter trimming, and genome alignment.
  • Classification of small RNAs, annotation of known miRNAs, novel miRNA prediction, and differential expression analysis.

Main Results:

  • mirTools enables comprehensive analysis of small RNA sequencing data.
  • The server facilitates filtering, alignment, classification, annotation, novel miRNA prediction, and differential expression analysis.
  • Users can analyze miRNA/miRNA* counts and identify differentially expressed miRNAs.

Conclusions:

  • The integrated computational approaches in mirTools significantly advance microRNA research.
  • mirTools provides a user-friendly platform for in-depth analysis of small RNA transcriptomes.
  • This tool is expected to facilitate discoveries in various physiological and pathological processes involving miRNAs.