Figure 2From: Computational identification of a new SelD-like family that may participate in sulfur metabolism in hyperthermophilic sulfur-reducing archaeaMultiple sequence alignments of SelD and SelD-like proteins. The alignments show the N terminal regions that contain the active site in representative SelD and SelD-like proteins. Conserved residues are highlighted. Sec (U) and the corresponding Cys (C) residues are shown in red and blue, respectively. The conserved Cys residue corresponding to the catalytic Sec/Cys in the active site of SelD could not be detected in other families of the ATP-binding superfamily that contains SelD.Back to article page