expression is tightly regulated
cumate inducible
expression is tightly regulated
cumate inducible
In this paper, we designed a system that could fully repress lycopene production in the absence of an inducer and produce visible lycopene within two hours of induction. We engineered Lac, Ara, and T7 systems to be up to 10 times more repressible, but these improved systems could still not fully repress lycopene. Translational modifications proved much more effective in controlling lycopene. By decreasing the strength of the ribosomal binding sites on the crtEBI genes, we enabled full repression of lycopene
While these techniques offer good repression, they exhibit leakiness that precludes the gene of interest from being completely turned off
Clearly, premature removal of the cI cassette in the absence of an inducer can limit environmental applications of this type of biosensor