Figure 5
Phylogeny of NXR and related enzymes, based on the α subunit. Maximum likelihood tree showing the phylogenetic positioning of selected type II enzymes of the dimethyl sulfoxide reductase family, based on the catalytic (α) subunits. For the analysis 1102 amino acid positions were considered. Names of validated enzymes are indicated (Nxr, boldface; Nar, membrane-bound respiratory nitrate reductase; Pcr, perchlorate reductase; Ebd, ethylbenzene dehydrogenase; Ddh, dimethylsulfide dehydrogenase; Clr, chlorate reductase; Ser, selenate reductase). Parentheses contain the number of sequences within a group or the accession number, respectively. Pie charts indicate statistical support of nodes based on bootstrap analysis or Bayesian inference, respectively. More distantly related molybdoenzymes were used as outgroup.
