Figure 4

Sequences of C. clariflavum and A. cellulolyticus ScaB dockerins . Sequence alignment of the two dockerin modules was performed using the CLUSTALW2 program at the EBI website. Consensus residues are as defined accordingly; *indicates a position which has an identical residue, and colon (:) and period (.) indicate conservation between groups of strongly and weakly similar properties, respectively; blue indicates conservation between species and green indicates conservation between the two repeated segments. Ca⁺²-binding residues are highlighted in cyan, and putative recognition residues are highlighted in yellow. Residues are numbered relative to the highly conserved glycine (designated 0), which is positioned adjacent to the initial calcium-binding aspartate (residue 1).