Fig. 6.

Sequence alignment of the catalytic domain in BthChi74 with those in other GH18 bacterial chitinases. The aligned sequences (Accession Number) are the following: BthChi74 (LC194873); BcChiCW (AAM48520); LinChi78 (LC092875); SmChiB (CAA85292); and LinChi35 (LC092876). The hash symbol (#) denotes the putative catalytic residue. The putative amino acid residues interacting with a substrate in subsites as described in BcChiA (Watanabe et al. 2003) are colored in red. Amino acid residues that are identical in three or more of the aligned enzymes are shaded