Figure 7. Occurrence of Candidate Regulatory Elements and Genes Involved in the Iron and Manganese Homeostasis in α-Proteobacteria.

Only conserved members of the predicted Fe/Mn regulons are shown. Genes are arranged by their functional role. Genomes are arranged by taxonomic lineages. When the gene is present in the genome, the background colors denote the presence of the specific recognition motif in its upstream region. If the gene is preceded by two different regulatory motifs, it is shown by a diagonally separated bicolor square. Differential regulation of two mntH paralogs in Bradyrhizobium sp. BTAi1 by Fur/Mur and MntR regulons is shown by vertically separated bicolor square. Genes without any candidate iron or manganese regulatory motifs described in this study are indicated by grey background color. Empty crossings denote the absence of an orthologous gene in the genome.