Figure 1.

(a) Neighbour-Joining consensus tree of the deduced amino acid sequence from S. sediminis and a selection of organohalide-respiring bacteria. RdhA are labelled with the following abbreviations: Dhc, Dehalococcoides; Desulfitob, Desulfitobacterium; Sulfurosp, Sulfurospirillum and Ssed, Shewanella. (b) Multiple alignment of the C-terminal region of deduced amino acid sequences of reductive dehalogenase genes from S. sediminis and a range of known organohalide-respiring organisms. Consensus motifs for the iron sulfur clusters are highlighted in grey, other shared residues are marked with boxes.