Fig. 2

Structural models of the three M. pulcherrima chitinases. (a) Linear scheme of the MpChit35 and MpChit38 sequences (top) and superimposition of their overall predicted catalytic domains structures with ScCTS1 from S. cerevisiae. (b) Linear schema of the MpChit41 sequence (top) and its overall predicted structure. (c) Substrate-binding grooves of chitinases MpChit35, MpChit38 and MpChit41 (from left to right). Potential residues at catalytic groove of each chitinase are indicated and numbered. Catalytic residues in DxDxE sequence of the three chitinases are marked in yellow. Residues at the same position that are different between chitinases MpChit35 and MpChit38 at their catalytic grooves are indicated in blue