Table 1.
Agent | Km (μg/ml) | Vmax (ng/min/μg protein) |
---|---|---|
minocycline | 133 ± 14.3 | 13.4 ± 1.35 |
doxycycline | 507 ± 38.6 | 5.33 ± 0.62 |
tetracycline | 592 ± 59.8 | 5.86 ± 0.56 |
ciprofloxacin | 351 ± 12.7 | 5.11 ± 0.32 |
ofloxacin | 221 ± 20.6 | 4.24 ± 0.23 |
moxifloxacin | 244 ± 8.43 | 8.68 ± 0.69 |
Transport activity was assayed during the rapid initial phase of uptake. The kinetic data was analyzed with the Lineweaver-Burk method to determine the kinetic constants.