TABLE 5.
Regulation of α-galactosidase activity by GalR in L. lactis subsp. cremoris MG1363
| Recombinant plasmid | Sugar | Activitya |
|---|---|---|
| pRAF300 (aga plus galR) | Glucose | 27 ± 27 |
| Galactose | 372 ± 107 | |
| Melibiose | 314 ± 21 | |
| pRAF301 (aga) | Glucose | 1807 ± 469 |
| Galactose | 9998 ± 1713 | |
| Melibiose | 6719 ± 816 |
a
Values are the means ± standard deviations of 12 measurements obtained with two cell extract quantities in two independent experiments. Activity is expressed in nanomoles of p-nitrophenol formed per milligram of protein per minute.