Fig. 5
From: Laccases: structure, function, and potential application in water bioremediation
Laccase structure conservation and function. a Structure of Trametes versicolor (PDB ID 1GYC), and Bacillus subtilis (PDB ID 1GSK) laccases compared to Cucurbita pepo (zucchini) ascorbate oxidase (PDB ID 1AOZ) from left to right. Domain 1 (D1) is at the front and right of the structure, domain 2 (D2) is behind and in the upper portion, domain 3 (D3) is at the left. Brown spheres symbolize the position of copper atoms, T1 above the trinuclear cluster. b The molecular surface shows protruding chemical groups, in red, and concave or cavity regions, in green. Some of these latter regions correspond to the ligand-binding site (LB) along with the dioxygen molecule entrance (O2) and the water exit (H2O) channels. Central and right images were created from that on the left by rotating it 30° over the horizontal axis, or 30° over the vertical axis, respectively