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Molar absorptivity values after addition of the specified amounts of Cu(I) ions to Zn2γ-Ec-1 and arithmetic numbers for the amount of terminal Cys thiolate ligands involved in Cu(I) coordination at each point.
| +1 Cu(I) | +2 Cu(I) | +3 Cu(I) | |
|---|---|---|---|
| ε262 nm,M−1·cm−1 | 11,521 | 26,208 | 25,226 |
| number −S− | 2.6 | 6.0 | 5.8 |
