Genome Biology

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Inferring transcriptional modules from ChIP-chip, motif and microarray data

Karen Lemmens1, Thomas Dhollander1, Tijl De Bie2, Pieter Monsieurs1, Kristof Engelen1, Bart Smets3, Joris Winderickx3, Bart De Moor1 and Kathleen Marchal4,1*

Author Affiliations

1 BIOI@SCD, Department of Electrical Engineering, KU Leuven, Kasteelpark Arenberg, B-3001 Heverlee, Belgium

2 Research Group on Quantitative Psychology, Department of Psychology, KU Leuven, Tiensestraat, B-3000 Leuven, Belgium

3 Molecular Physiology of Plants and Micro-organisms Section, Biology Department, KU Leuven, Kasteelpark Arenberg, B-3001 Heverlee, Belgium

4 CMPG, Department of Microbial and Molecular Systems, KU Leuven, Kasteelpark Arenberg, B-3001 Heverlee, Belgium

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Genome Biology 2006, 7:R37 doi:10.1186/gb-2006-7-5-r37

Published: 5 May 2006

Abstract

'ReMoDiscovery' is an intuitive algorithm to correlate regulatory programs with regulators and corresponding motifs to a set of co-expressed genes. It exploits in a concurrent way three independent data sources: ChIP-chip data, motif information and gene expression profiles. When compared to published module discovery algorithms, ReMoDiscovery is fast and easily tunable. We evaluated our method on yeast data, where it was shown to generate biologically meaningful findings and allowed the prediction of potential novel roles of transcriptional regulators.