Table 3. Copper–copper and copper–ligand distance (Å) for the T2 site of T. versicolor laccase (TvL), Melanocarpus albomyces laccase (MaL), and Zucchini ascorbate oxidase (AO).

Cu2, Cu3 and Cu4 correspond to two copper ions of the T3 and one copper ion of the T2 sites respectively.

	Distance (Å)
Cu–Cu/ligand	TvL [41]	MaL [49]	AO [50]
Cu4–Cu2	3.8	3.9	3.9
Cu4–Cu3	3.8	4.0	3.7
Cu4–His1	2.0	1.9	2.0
Cu4–His2	2.0	1.9	2.1
Cu4–O/Cl−	2.4 (O)	2.5 (Cl−)	2.0 (O)