Bioinformatics Advance Access published online on November 30, 2006
Bioinformatics, doi:10.1093/bioinformatics/btl607
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1 Dipartimento di Biologia Animale e Genetica, via Romana 17, 50125 Firenze, Italy
* To whom correspondence should be addressed.
Summary: We describe MotifScorer, a program for systematic genome-wide identification of transcription sites. The program uses a compendium of gene expression microarrays and implements state-of-art partial least squares based regression (PLS) and stepwise regression procedures. Candidate motifs from the upstream sequences of groups of co-regulated genes are identified and assigned a score using genomic background models and available motif finding tools. The use of a large library of expression data allows statistical comparative analysis of the specificity of motifs identified in different conditions. Availability: MotifScorer, which is written in Java and Matlab, manual and example files are available from the authors.
Received September 19, 2006
Revised November 23, 2006
Accepted November 23, 2006
Applications note
MotifScorer: using a compendium of microarrays to identify regulatory motifs
Matteo Brilli 1, Renato Fani 1, and Pietro Lió 2 *
2 Computer Laboratory, University of Cambridge, Cambridge CB3 0FD, UK
Pietro Lió, E-mail: pl219{at}cam.ac.uk
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Associate Editor: Martin Bishop
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