Table 1.

EXAFS fitting parameters

		Cu–S			Cu–N(His)			Cu–S(Met)
Sample/Fit	F	N	R, Å	DW, Å2	N	R, Å2	DW, Å	N	R, Å2	DW, Å	E0
Cu(I)-WTAz	0.00039	1	2.19	0.002	2	1.97	0.010	1	2.68	0.003	−0.231
Cu(I)-HPAz (pH 6.5)	0.00022	1	2.17	0.004	1	1.92	0.010				−0.387
Cu(I)-HPAz (pH 8)	0.00023	1	2.17	0.003	1.3	1.93	0.003				−0.591
Cu(II)-WTAz	0.00051	1	2.17	0.003	2	1.93	0.008	1	2.70	0.006	−2.346
Cu(II)-HPAz	0.00056	1	2.23	0.010	2	1.98	0.005				−2.905