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. Author manuscript; available in PMC: 2017 Mar 1.
Published in final edited form as: J Biol Inorg Chem. 2016 Jan 20;21(1):113–119. doi: 10.1007/s00775-016-1332-4

Table 1.

CuI oxidation rate constants (kobs, s−1) at different pH values.

pH RuH107YOH109 RuH124YOH122
single-stepa (2.4 ± 0.5) × 102 (2.2 ± 0.2) × 104
5 --- (6.7 ± 0.2) × 104
6 (5.7 ± 0.3) × 103 (8.0 ± 0.2) × 104
7 (1.2 ± 0.2) × 104 (8.5 ± 0.2) × 104
8 (1.7 ± 0.2) × 104 (1.0 ± 0.2) × 105
9 (1.8 ± 0.2) × 104 (1.4 ± 0.2) × 105
a

Ref. 21. Single-step data for proteins without YOH (M109 and K122) Data were collected in 100 mM sodium phosphate, pH 7. For RuH107, [Co(NH3)5Cl]Cl2 was used as an irreversible quencher and the rate constant was extrapolated to infinite dilution of RuH107-azurin.21c,d,e