TABLE 2.
Fructose-asparaginase activity in periplasmic subcellular fractionsa
| Salmonella strain | ansA | ansB | fraE | Fructose-asparaginase sp act (102 U/mg) |
|---|---|---|---|---|
| 14028 | ✓ | ✓ | ✓ | 25.8 ± 1.2 |
| HMB195 | ✓ | ✓ | X | 12.0 ± 2.9 |
| HMB207 | X | ✓ | X | 14.1 ± 1.8 |
| HMB208 | ✓ | X | X | 1.9 ± 0.3 |
| HMB212 | X | ✓ | ✓ | 26.8 ± 0.9 |
| HMB213 | ✓ | X | ✓ | 17.7 ± 1.3 |
| HMB220 | X | X | ✓ | 18.7 ± 1.5 |
| HMB214 | X | X | X | 0.85 ± 0.1 |
a
Shown are the mean values and the standard errors calculated from two independent measurements; ✓ and X refer to the presence and absence of the corresponding locus, respectively.