Fig. 6

Domain organization of Ab, MAC and MR chitinases. Protein domains, as identified with Pfam and SMART databases are presented. AbChit-1, AbChit-3 and MACChit-20 lack the active site residue ‘E’ in their catalytic motif (DXXDXDXE). All other chitinase sequences contain intact conserved catalytic motifs. The numbers by the end of each chitinase schematic denote the protein length (amino acids)