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Updated: May 11, 2026

A Bioinformatics Pipeline for Investigating Molecular Evolution and Gene Expression using RNA-seq
Published on: May 28, 2021
CMCompare webserver: comparing RNA families via covariance models
Florian Eggenhofer1, Ivo L Hofacker, Christian Höner Zu Siederdissen
1Institute for Theoretical Chemistry, University of Vienna, Währingerstrasse 17, A-1090 Vienna, Austria. egg@tbi.univie.ac.at
The CMCompare webserver aids in identifying novel non-coding RNAs by comparing covariance models. It ensures specificity and uniqueness, preventing duplicate RNA family models and revealing relationships between them.
Area of Science:
- Bioinformatics
- Computational Biology
- Molecular Biology
Background:
- Covariance models are standard for identifying novel non-coding RNAs based on sequence and structure.
- The Rfam database currently contains models for 2208 RNA families.
- Testing for specificity, sensitivity, and uniqueness is crucial before database inclusion.
Purpose of the Study:
- To introduce the CMCompare webserver (CMCws) for comparing Infernal RNA family models.
- To identify RNA models with poor specificity and explore relationships between models.
- To facilitate the avoidance of duplicate non-coding RNA family models.
Main Methods:
- The CMCompare webserver (CMCws) facilitates homology searches using covariance models.
- It compares user-generated models against the entire Rfam database.
- CMCws offers visualization tools to explore relationships between multiple RNA family models.
Main Results:
- CMCws identifies RNA models with poor specificity, ensuring accurate non-coding RNA identification.
- It aids in discovering relationships between RNA families, potentially revealing biological connections.
- The webserver helps prevent the creation of redundant models for existing non-coding RNA families.
Conclusions:
- The CMCompare webserver is a valuable tool for non-coding RNA research.
- It enhances the quality control and discovery process for RNA family models.
- CMCws supports the organization and understanding of RNA families and their potential clans.
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