Figure 2.

Multiple sequence alignment of the core region of the catalytic domains between CHI II and some eukaryotic chitinases. Highly conserved regions, SxGG and DxxDxDxE, are boxed. Residues responsible for the catalytic activity are indicated with asterisks. Sequence fragments displaying the typical motifs with the G. antarctica PI12 catalytic domain include Amanita muscaria, Laccaria bicolor, Coprinellus congregatus, Puccinia triticina and Taiwanofungus camphorates.