TABLE 2.
Turnover numbers for the observed products under light irradiation in 200 mM potassium phosphate, 100 mM ascorbic acid, 1 mM [Ru(bpy)3]2+, and 1 atm of gas.
| Mutant | TON H2 | TON CO | TON HCO2 – | ||||
|---|---|---|---|---|---|---|---|
| pH 6 a | pH 6 | pH 7 | pH 6 | pH 7 | pH 6 | pH 7 | |
| CoPPIX | 89 ± 6 | 103 ± 5 | 97 ± 3 | 19 ± 1 | 23 ± 1 | 33 ± 4 | 22 ± 1 |
| WT | 170 ± 12 | 177 ± 9 | 131 ± 10 | 35 ± 6 | 34 ± 6 | 33 ± 4 | 27 ± 9 |
| M7A | 126 ± 5 | 124 ± 3 | 93 ± 6 | 31 ± 4 | 36 ± 6 | 20 ± 3 | 24 ± 8 |
| M7H | 167 ± 10 | 150 ± 8 | 143 ± 6 | 39 ± 7 | 42 ± 11 | 38 ± 6 | 35 ± 14 |
| H102A | 205 ± 16 | 220 ± 6 | 163 ± 7 | 37 ± 10 | 33 ± 10 | 37 ± 8 | 25 ± 8 |
a
Control experiment under Ar instead of CO2.