Table 2.

Determination of β-galactosidase activity frommecA-lacZ transcriptional fusions

Strainβ-Galactosidase activitya in the presence of CBAP at:Fold increase in β-galactosidase activityb
0 μg/ml5 μg/ml
450M/pG0630::geh 496.2 ± 105.91,822.4 ± 312.63.6
450M/pG0631::geh 2,934.8 ± 622.613,618.4 ± 1,759.14.6
  • a Miller units per milligram of protein per hour; mean of five experiments ± standard deviation.

  • b Calculated by dividing the activity units obtained in the presence of CBAP by that in the absence of CBAP.