Diversity analysis of D. restrictus RdhA proteins. All D. restrictus RdhA proteins are indicated in red together with their genetic structure: rdhA (red box), rdhB (orange), rdhC (yellow), rdhT (green). Protein sequences were aligned with selected RdhA proteins from other OHRB. When known, the corresponding substrates are also indicated. Dre, Dehalobacter restrictus; Dhb, Dehalobacter spp. (strains E1, MS and WL); Dha, Desulfitobacterium hafniense (strains DCB-2, PCP-1, TCE1 and Y51); Dde, Desulfitobacterium dehalogenans; Ddi, Desulfitobacterium dichloroeliminans; Desor, Desulfosporosinus orientis; Dmc, Dehalococcoides mccartyi (strains 195 and VS); Smu, Sulfurospirillum multivorans.