Fig. 3
From: Thermophilic bacteria are potential sources of novel Rieske non-heme iron oxygenases
Comparison of conserved N-terminal Rieske [2Fe–2S] and C-terminal 2-His-1-carboxylate motifs among α-subunits of oxygenase components of putative thermophilic ROs obtained from thermophilic bacteria (orange font) and those obtained from mesophilic bacteria and eukaryotes. The horizontal bars represent the aliphatic index of each sequence. Blue and orange vertical dotted lines indicate the average aliphatic indices obtained for mesophilic (75.25) and thermophilic (80.88) RO homologs, respectively. All those homologs which showed an aliphatic index ≥80.88 are indicated by an arrow, while clades representing only the thermophilic homologs are denoted by asterisks