Table 1 Enzyme kinetic parameters for the single sugar transfer of UGT76G1
UGT76G1 | |||||||
|---|---|---|---|---|---|---|---|
donor | R1 acceptor | R2 acceptor | |||||
UDPG | STB | ST | Reb E | Rubu | Reb D | Reb A | |
Km (μM) | 5.6 ± 0.4 | 4.8 ± 0.4 | 25.5 ± 3.4 | 9.2 ± 0.7 | 54.4 ± 4.0 | 94.2 ± 15.5 | 243.4 ± 28.1 |
kcat (min−1) | 4.1 ± 0.1 | 4.8 ± 0.1 | 41.8 ± 1.4 | 21.3 ± 0.5 | 5.9 ± 0.1 | 3.3 ± 0.2 | 0.12 ± 0.004 |
kcat/Km (S−1 mM−1) | 12.4 | 16.5 | 27.3 | 38.6 | 1.8 | 0.6 | 0.008 |