Table 1.

Distributions of FMN riboswitch in different prokaryotic genera (Winkler and Breaker 2005)

Name and functions of the riboswitch

Representative genera

FMN riboswitch Functions: Control gene expression of riboflavin biosynthesis and transport

Proteobacteria: α-proteobacteria (Mesorbizobium, Bradyrbizobium, Sinorbizobium, Brucella, Agrobacterium) β-proteobacteria (Nitrosomonas, Methylobacillus, Ralstonia) γ-proteobacteria (Escherichia, Salmonella, Klebsiella, Yersinia, Vibrio, Pasteurella, Pseudomonas, Xanthomonas) δ-proteobacteria (Geobacter) Deinococcales (Deinococcus) Bacillales (Bacillus, Listeria) Lactobacillales (Enterococcus) Clostridiales/Thermoanaerobacteriales (Clostridium, Thermoanaerobacter) Actinomycetales (Corynebacterium, Mycobacterium, Propionibacterium, Streptomyces) Cynobacteria (Anabaena, Thermosynecbococcus) Chlorobiales (Chlorobium) Bacteriodales (Bacteriodes) Thermotogales (Thermotoga) Spirobactales (Treponema, Leptospira) Archaea (Aeropyrum, Sulfolobus, Pyrococcus)

Bold text indicates different classes of phylum “Proteobacteria”