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Riboswitches are genetic control elements located mainly within the 5' untranslated regions of messenger RNAs. These RNA elements undergo conformational changes that modulate gene expression upon binding of regulatory signals including vitamins, amino acids, nucleobases and uncharged tRNA. The thiamin pyrophosphate (TPP)-binding riboswitch (THI-box...
We present a computational approach that identifies regulatory elements conserved across phylogenetically distant organisms. Intergenic regulatory regions were clustered by orthology of the adjacent genes, and an iterative process was applied to search for significant motifs, enabling new elements of the putative regulon to be added in each cycle....