Our favourite parts:

-BBa_K875001, T5 cumate operator:
we have dimontrated that it is a very strong and strictly regulated promoter.Thanks to its rapid reactivity it's one of the first candidate for the expression and production of toxin in case of necessity.
-BBa_K87003, CymR:
we have succesfully expressed the CymR. We have also show his stringency as repressor of the T5 cumate operator that makes the all system a very useful mechanism for an high specificity expression.
-BBa_K87004, LPP-OmpA-scFv:
we have verified the production of this protein at high yield. OmpA is a very powerful method for displaying proteins on the external membrane, in this case the antibody scFv 54.6.