Bioinformatics and Genomics Program, Centre for Genomic Regulation (CRG), Barcelona, Spain. Tobias.Warnecke@crg.es|Bioinformatics and Genomics Program, Centre for Genomic Regulation (CRG), Barcelona, Spain. Tobias.Warnecke@crg.es|Bioinformatics and Genomics Program, Centre for Genomic Regulation (CRG), Barcelona, Spain. Tobias.Warnecke@crg.es