Alignment of members of the Fur protein family. Predicted protein sequences for proteins of the Fur family from C. metallidurans CH34, Cupriavidus eutrophus H16 (synonym Ralstonia eutropha), Cupriavidus pinatubonensis JMP134 (synonym Ralstonia eutropha), and E. coli were globally aligned using the Blosum62 cost matrix and Geneious 6.1.6. The sequences used were YP_585118 (Rmet_2976), YP_587874 (Rmet_5746), and YP_582283 (Rmet_0128 from CH34, YP_727586, YP_728287, and YP_724716 from H16, and YP_297042, YP_299716, YP_294390 from JMP134 for FurA, FurB, and FurC, respectively. The bar represents 0.2 exchanges per site. The Fur cluster is in red, and the Zur cluster is in blue. Shown below the alignment are the genomic environments of the three fur genes from C. metallidurans. Chr 1, chromosome 1; Chr 2, chromosome 2. Genes for Fur are in blue, genes for other functions are in different colors.