Additional file 3: Figure S2. of Bacterial calpains and the evolution of the calpain (C2) family of peptidases

Protein sequence alignment for selected members of the calpain family. The alignment generated by ClustalW is shown. Residues conserved in 80 % of sequences are highlighted in light yellow. Residues that are similar in 80 % of sequences are highlighted in dark yellow. Active site residues are indicated by an asterisk. Calcium-binding residues are indicated by a plus sign. Residue numbers are shown on the right hand side. For the key to sequences, see Additional file 4: Table S2. (TXT 12 kb)