Table 2.

Chloramphenicol resistance and CAT activity of promoter-reporter plasmids in E. coli

Reporter plasmidPromoterMIC (μg/ml)aCAT activity (cpm ± 95% CI)bRelative activityc
pGOΔ1None1054 ± 60
pGOΔ33 vsp33 20387 ± 268
pGOΔ7 vlp7 6403,992 ± 224100
pGOΔ2 vsp2 6404,146 ± 566104
  • a MIC of chloramphenicol at 23 and 37°C.

  • b Mean counts per minute ± 95% confidence interval.

  • c CAT activity was adjusted by subtracting the mean value for pGOΔ1; this result was then divided by the adjusted mean activity for pGOΔ7 to produce relative activity.