Table 2.
Comparison of the biochemical properties of E. coli KdsD, GutQ, KpsF, and c3406
| Protein | kcat (A5P to Ru5P, s−1) | Km (A5P, mM) | kcat/Km (A5P, M−1 s−1) | kcat (Ru5P to A5P, s−1) | Km (Ru5P, mM) | kcat/Km (Ru5P, M−1 s−1) | Keq | Optimum pH | Subunit mass (Da) |
|---|---|---|---|---|---|---|---|---|---|
| KdsDa | 157 ± 4d | 0.61 ± 0.06 | 2.6 × 105 | 255 ± 16 | 0.35 ± 0.08 | 7.3 × 105 | 0.50 ± 0.06 | 8.4 | 35,084 |
| GutQb | 218 ± 4 | 1.2 ± 0.1 | 1.8 × 105 | 242 ± 11 | 0.64 ± 0.08 | 3.8 × 105 | 0.47 | 8.25 | 33,909 |
| KpsFc | 15 ± 1 | 0.57 ± 0.04 | 2.6 × 104 | 19 ± 2 | 0.30 ± 0.03 | 6.3 × 104 | 0.48 ± 0.02 | 7.75 | 35,447 |
| c3406 | 16.8 ± 0.2 | 1.92 ± 0.05 | 8.8 × 103 | 10.5 ± 0.8 | 0.70 ± 0.12 | 1.5 × 104 | 0.52 | 6.6 | 20,880 |