Supplementary Material for "Evolution of Chi motifs in Proteobacteria" Angelique Buton & Louis-Marie Bobay Department of Biology, University of North Carolina Greensboro, 321 McIver Street, PO Box 26170, Greensboro, NC 27402, USA Dataset S5. List of species with candidate Chi motifs (830 non-polarized motifs searched). $Species Chi_motif(s) Clade Aggregatibacter_actinomycetemcomitans ['tgcggtgg'] Proteobacteria Bacillus_pseudofirmus ['ggcggcgg'] Terrabacteria Caldicellulosiruptor_kristjanssonii ['tgtggttg'] Terrabacteria Caldicellulosiruptor_kronotskyensis ['ggtgttgg', 'gttggtgt', 'ggttctgg'] Terrabacteria Campylobacter_fetus ['ggtcttgg'] Proteobacteria Carboxydothermus_hydrogenoformans ['ggaagtgg', 'ggttttgg'] Terrabacteria Clostridium_autoethanogenum ['gctgctgc'] Terrabacteria Clostridium_perfringens ['ggtggcgg'] Terrabacteria Desulfosporosinus_meridiei ['gcaactgg', 'gatgttgg', 'ggtgatgt', 'gctcctgt', 'actggagc'] Terrabacteria Gardnerella_vaginalis ['ggcggcgg', 'gggggggg'] Terrabacteria Geobacillus_thermoleovorans ['gcgggcga', 'gcttgagg'] Terrabacteria Geobacter_daltonii ['ggtgctgg'] Proteobacteria Gluconacetobacter_diazotrophicus ['ggtcgagg'] Proteobacteria Gottschalkia_acidurici ['ggtggagg'] Terrabacteria Haemophilus_somnus ['gggggggg', 'gctgtagg'] Proteobacteria Helicobacter_hepaticus ['gggggggg'] Proteobacteria Lysinibacillus_varians ['ggtggcgg'] Terrabacteria Mannheimia_haemolytica ['ggagctgg'] Proteobacteria Marinithermus_hydrothermalis ['cctcgagg'] Terrabacteria Moraxella_catarrhalis ['ggtgcagg'] Proteobacteria Shewanella_frigidimarina ['ggtggcgg'] Proteobacteria Staphylococcus_pasteuri ['ggtggcgg', 'ggtattgg'] Terrabacteria Staphylococcus_xylosus ['ggtggcgg'] Terrabacteria Streptococcus_gallolyticus ['ggtggcgg', 'gcttgcgc', 'gctggcgc'] Terrabacteria Streptococcus_pasteurianus ['gcttgcgc', 'gctggcgc'] Terrabacteria Sulfurospirillum_deleyianum ['ggcagtgg'] Proteobacteria Xylella_fastidiosa ['ggcggcgg'] Proteobacteria