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Updated: Jul 14, 2026
10:54
Detection of Retrotransposition Activity of Hot LINE-1s by Long-Distance Inverse PCR
Published on: July 27, 2019
RTAnalyzer: a web application for finding new retrotransposons and detecting L1 retrotransposition signatures
Jean-François Lucier1, Jonathan Perreault, Jean-François Noël
1RNA Group/Groupe ARN, Département de microbiologie et infectiologie, Faculté de médecine et des sciences de la santé, Université de Sherbrooke, Sherbrooke, Québec J1H 5N4, Canada.
Nucleic Acids Research
|June 5, 2007
Summary
RTAnalyzer software identifies mobile genetic elements, specifically L1 retrotransposition events, by searching for unique genomic signatures. This tool helps determine the likelihood of sequences originating from L1 retrotransposition in mammalian genomes.
Area of Science:
- Genomics
- Molecular Biology
- Bioinformatics
Background:
- Mobile genetic elements, particularly retrotransposons, play a crucial role in shaping mammalian genomes.
- Understanding the origin and activity of these elements is key to genomic research.
Purpose of the Study:
- To introduce RTAnalyzer, a software tool designed for tracking sequences of retrotransposed origin.
- To provide a method for scoring L1-mediated insertion signatures within a genome.
Main Methods:
- Utilizes BLAST for searching genomic databases to identify sequences of interest.
- Saves relevant genomic regions (5' and 3' flanking sequences) for each hit.
- Analyzes saved sequences for specific L1 retrotransposition signatures: target site duplication, endonuclease cleavage site, and poly(A) tail.
Main Results:
- RTAnalyzer calculates an overall retrotransposition score for each sequence.
- The score quantifies the probability of a sequence originating from an L1 retrotransposition event.
Conclusions:
- RTAnalyzer offers a reliable method for identifying and assessing L1 retrotransposition events in mammalian genomes.
- The software is available under the GNU public license for broader research use.
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