Table 1.
Steady State Constants of the UDP-Glucosyltransferases Co-BX8, Zm-BX8, and Zm-BX9
| Enzyme | UDPG | DIBOA | DIMBOA | ||||||
| Km(μM) | kcat(s−1) | kcat/Km(mM−1 s−1) | Km(μM) | kcat(s−1) | kcat/Km(mM−1 s−1) | Km(μM) | kcat(s−1) | kcat/Km(mM−1 s−1) | |
| Co-BX8 | 743 ± 77 | 8.5 ± 0.2 | 11.4 | 441 ± 47 | 9.5 ± 0.2 | 21.5 | 3168 ± 549 | 17.6 ± 1.6 | 5.6 |
| Zm-BX8a | 81 | 22.6 | 280 | 61 | 12.5 | 205 | 81 | 22.7 | 280.0 |
| Zm-BX9a | 96 | 22.6 | 117 | 1300 | 12.5 | 6 | 71 | 11.6 | 163.0 |
The data for Zm-BX8 and Zm-BX9 are from von Rad et al. (2001).