Figure 2
From: Alanine substitution in cellobiohydrolase provides new insights into substrate threading

Nine amino acid residues used in the alanine scanning experiment at three locations: (a) Entrance, (b) Base, and (c) Loop. (d) Interactions of the nine alanine-scanning residues with subsites. Interactions are indicated by check marks, with the main interactions shown in red for each residue. The corresponding residues in TrCel7A are listed.