TABLE 2.

Relative promoter activities in E. coli and V. cholerae

lacZ fusion plasmidβ-Galactosidase activity
Copy number in:Miller unitsNormalizeda
E. coliV. choleraeE. coliV. choleraeE. coliV. cholerae
pDP310 (rctBp-lacZ)274.44,50027916763
pPP112 (repAp-lacZ)258.32,15994686114
  • a Values were obtained by dividing Miller units by copy number of the corresponding source plasmids.