Types | DnaRegion
|
Roles | engineered_region
Composite
|
Sequences | BBa_K544013_sequence (Version 1)
|
Description
The tetR-HNS2-90 protein fuses the polymerization demain of histone-like nucleoid-structuring (H-NS) protein to tetR. Thus, in E.coli, when TetR-HNS2-90 binds the TetR-specific DNA motif, it will recruit native H-NS to bind to adjacent DNA, which may lead to local gene silencing. This fusion protein is driven by constitutive promoter family members (BBa-J23103, BBa-J23109, BBa-J23116, and BBa-J23106). Experimental data indicates that TetR-HNS2-90 is more effective than TetR on transcription repression.
Notes
There is a internal Pst1 site at in H-NS coding region
Source
H-NS2-90 coding region was cloned from E. coli K-12 MG1655 genomic DNA.