FIG. 3.

Sequence alignment of ArChiA, ArChiB, several bacterial chitinases, and a chitodextrinase. The alignment was constructed using the multiple alignment program (PILEUP) from the Greek EMBnet Node. VfEndoI, chitodextrinase of V. furnissii; BcChia, chitinase A of B. circulans; SmChiA, chitinase A of S. marcescens. Amino acid numbering is indicated on the right. The amino acids under the sequence alignment are the consensus sequence determined from the alignment of five bacterial chitinases as described in the text. The catalytic residue is double underlined.