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Related Experiment Videos

Semi-automated update and cleanup of structural RNA alignment databases.

J Gorodkin1, C Zwieb, B Knudsen

  • 1Department of Ecology and Genetics, The Institute of Biological Sciences, University of Aarhus, Building 540, Ny Munkegade, DK-8000 Aarhus C, Denmark.

Bioinformatics (Oxford, England)
|July 13, 2001
PubMed
Summary

New software improves structural RNA database maintenance by automating sequence alignment and consistency checks. This reduces sequence misannotations, enhancing data accuracy for RNA research.

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Area of Science:

  • Bioinformatics
  • Computational Biology
  • Molecular Biology

Background:

  • Structural RNA databases are crucial for understanding RNA function.
  • Maintaining the accuracy and completeness of these databases is challenging.
  • Existing methods may lead to sequence misannotations.

Purpose of the Study:

  • To develop and present a suite of computational tools for the automated maintenance of structural RNA databases.
  • To enhance the accuracy of RNA sequence annotations and structural alignments.

Main Methods:

  • A primary program performs BLAST searches against GenBank to extend and realign RNA sequences.
  • Subsequent programs analyze base pair consistency and phylogenetic support for database entries.
  • Iterative refinement of structural alignments is facilitated by the program outputs.

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Main Results:

  • The developed programs automate critical steps in database maintenance, including sequence extension and realignment.
  • The tools enable rigorous examination of base pair consistency and phylogenetic support.
  • Application to the Signal Recognition Particle RNA database reduced potential misannotations per sequence from 20 to 3.

Conclusions:

  • The developed software suite effectively automates and refines the maintenance of structural RNA databases.
  • These tools significantly improve the accuracy of RNA sequence data, reducing misannotations.
  • The methods provide a robust framework for iterative refinement of structural RNA database alignments.