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Bioinformatics Advance Access originally published online on October 21, 2008
Bioinformatics 2008 24(24):2849-2856; doi:10.1093/bioinformatics/btn544
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© 2008 The Author(s)
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

IntaRNA: efficient prediction of bacterial sRNA targets incorporating target site accessibility and seed regions

Anke Busch , Andreas S. Richter and Rolf Backofen *

Bioinformatics Group, Albert-Ludwigs-University Freiburg, Georges-Koehler-Allee 106, Freiburg D-79110, Germany

*To whom correspondence should be addressed.


  Abstract

Motivation: During the last few years, several new small regulatory RNAs (sRNAs) have been discovered in bacteria. Most of them act as post-transcriptional regulators by base pairing to a target mRNA, causing translational repression or activation, or mRNA degradation. Numerous sRNAs have already been identified, but the number of experimentally verified targets is considerably lower. Consequently, computational target prediction is in great demand. Many existing target prediction programs neglect the accessibility of target sites and the existence of a seed, while other approaches are either specialized to certain types of RNAs or too slow for genome-wide searches.

Results: We introduce INTARNA, a new general and fast approach to the prediction of RNA–RNA interactions incorporating accessibility of target sites as well as the existence of a user-definable seed. We successfully applied INTARNA to the prediction of bacterial sRNA targets and determined the exact locations of the interactions with a higher accuracy than competing programs.

Availability: http://www.bioinf.uni-freiburg.de/Software/

Contact: IntaRNA{at}informatik.uni-freiburg.de

Supplementary information: Supplementary data are available at Bioinformatics online.

Associate Editor: Ivo Hofacker

Received on June 16, 2008; revised on October 14, 2008; accepted on October 17, 2008

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