# Overview During the part design process, we wanted to achieve the orthogonality of the Gal4-QPAS1, as LexA-dependent systems might be interrupted by the native E. coli reparation systems. For that purpose we have screened the specificity of Gal4-dependent promoters and proudly present our data in /Results and /Protocols. # New Parts | Part |Type |Short Description| | BBa_K4044010 |basic |p119_G4 (Pj23119-based Gal4 dependent bacterial promoter)| | BBa_K4044011 |basic |p119_G4-n11 (Pj23119-based partially modified Gal4 dependent promoter)|