The Importance of Surface-Binding Site towards Starch-Adsorptivity Level in α-Amylase: A Review on Structural Point of View

Figure 5

The overall structure of SusG (PDB ID code 3K8L). (a) The ribbon structure of SusG. The A, B, and C domain and CBM58 are colored in blue, brown, purple, and green, respectively. The metal ions are displayed as a green sphere, and those of ethylene glycol molecules are in grey. The maltoheptaose is represented differently based on its location at the active site, the secondary starch-binding site (SBS), and CBM58 (green, yellow, and pink colored sticks, resp.). (b) The molecular surface of SusG structure based on the edge- and face-side of aromatic residues [16].

(a)

(b)