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Kinetic parameters for DcpG ligand-dependent DGC activity at 25 °C (mean ± SD of at least three independent experiments)
| Ligation state | kcat (min−1) | KM (µM) | kcat/KM (M−1/min−1) |
| Fe(II) | 1.21 ± 0.07 | 284.4 ± 123.3 | 4,243 |
| Fe(II)-O2 | 0.45 ± 0.04 | 80.9 ± 33.5 | 5,562 |
| Fe(II)-NO | 2.02 ± 0.36 | 443.7 ± 186.4 | 4,574 |
| Fe(II)-CO | 1.32 ± 0.09 | 236.6 ± 71.9 | 5,569 |
| Fe(III) | 0.22 ± 0.05 | 88.6 ± 35.0 | 2,483 |
