Conservation analysis of σ<sup>54</sup> binding sites. BonocoraRichard P. SmithCarol LapierrePascal WadeJoseph T. 2015 <p>Heat-maps depicting the match to the σ<sup>54</sup> consensus binding site for each <b>(A)</b> canonical and <b>(B)</b> non-canonical σ<sup>54</sup> binding site across a range of bacterial species. Genera are listed across the top, binding site ID numbers, and fold above threshold (FAT) scores in parentheses are listed to the left of the heat-map. For σ<sup>54</sup> binding sites in panel A, the gene immediately downstream of each binding site is indicated to the right of the heat-map. <b>(C)</b> Comparison of the level of σ<sup>54</sup> binding, as indicated by FAT score (Tables <a href="http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1005552#pgen.1005552.t001" target="_blank">1</a> & <a href="http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1005552#pgen.1005552.t002" target="_blank">2</a>), versus Motif Score (<a href="http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1005552#pgen.1005552.s011" target="_blank">S5 Table</a>) for <i>E</i>. <i>coli</i> only. Different classes of binding site are indicated by color.</p>