Discovery of Conserved Motifs in Promoters of Orthologous Genes in Prokaryotes

Abstract
We present a method to predict cis-acting elements for a given gene by detecting over-represented motifs in promoters of a set of ortholo gous genes in prokaryotes (single-gene, multiple-genomes approach). The method has been used successfully to detect regulatory elements at various taxonomical levels in prokaryotes. A web interface is available at the Regulatory Sequence Analysis Tools site ( http://rsat.scmbb.ulb.ac.be/rsat/ ).