TABLE 3.

Promoter activities of tphCII and tphRII

PromoterStrainβ-Galactosidase activity (mU/mg)
With TPAWithout TPA
tphC II (pZTC)E62.03 ± 0.14NDa
EME0092.02 ± 0.12ND
EME0112.53 ± 0.18ND
EME010NDND
tphR II (pZTR)E60.04 ± 0.010.04 ± 0.01
EME0090.05 ± 0.010.06 ± 0.01
EME0100.11 ± 0.020.09 ± 0.003
  • a ND, not detected.