Bioinformatics Advance Access originally published online on March 25, 2009
Bioinformatics 2009 25(11):1345-1348; doi:10.1093/bioinformatics/btp172
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In silico analysis of promoter regions from cold-induced genes in rice (Oryza sativa L.) and Arabidopsis thaliana reveals the importance of combinatorial control
1Systems Biology Research Centre, School of Life Sciences, University of Skövde, Box 408, 541 28 Skövde, 2Department of Cell and Molecular biology, Medicinaregatan 9C, Box 462 and 3Department of Plant and Environmental Sciences, Box 461, Gothenburg University, SE405 30 Göteborg, Sweden
*To whom correspondence should be addressed.
| Abstract |
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Motivation:Cold acclimation involves a number of different cellular processes that together increase the freezing tolerance of an organism. The DREB1/CBFs are transcription factors (TFs) that are prominent in the regulation of cold responses in Arabidopsis thaliana, rice and many other crops. We investigated if the expression of DREB1/CBFs and co-expressed genes relies on combinatorial control by several TFs. Our results support this notion and indicate that methods for studying the regulation of complex cellular processes should include identification of combinations of motifs, in addition to searching for individual overrepresented binding sites.
Contact:angelica.lindlof{at}his.se
Supplementary information:Supplementary data are available at Bioinformatics online.
Associate Editor: Limsoon Wong
Received on October 27, 2008; revised on March 4, 2009; accepted on March 21, 2009