Table 3.

Cu-protein distances in TaGH61A (3ZUD), NcPMO2 (4EIR) and NcPMO3 (4EIS). For 3ZUD the distances are to the main conformation of the Cu atom. In 4EIR and 4EIS there are two molecules per asymmetric unit, hence two distances are given.

	N-terminal His N	N-terminal His ND1	His NE2	Tyr OH
3ZUD	2.2 Å	1.9 Å	2.0 Å	2.9 Å
4EIR	2.2/2.2 Å	1.9/1.9 Å	2.0/2.0 Å	2.8/2.8 Å
4EIS	2.3/2.3 Å	1.9/1.9 Å	2.1/2.1 Å	2.7/2.8 Å