TABLE 4.

β-Galactosidase activity driven by the promoters of smc01505 and smc01504 under various conditions

Promoter fused to lacZaStrain (genotype)bβ-Galactosidase activity (Miller units) (±SD)c
28°C40°CExponential phaseStationary phase
Psmc01505Rm1021 (wt)160 (±15)632 (±118)162 (±25)1153 (±172)
CBT208 (rpoE2)147 (±17)148 (±14)149 (±22)161 (±11)
Psmc01504Rm1021 (wt)453 (±55)923 (±165)454 (±75)1,121 (±123)
CBT208 (rpoE2)420 (±25)445 (±34)446 (±47)432 (±20)
  • a Promoter-lacZ fusions were carried by plasmids pLS6.32 (Psmc01505) and pLS6.20 (Psmc01504).

  • b wt, wild type.

  • c Results are the average of at least three independent biological experiments.