Difference between revisions of "Part:BBa K2457000"

Revision as of 09:54, 1 November 2017

araC + pBAD arabinose inducible promoter

Arabinose inducible promoter pBAD forward + araC regulatory reverse gene under control of pC promoter and tryptophan terminator sequence.

Usage and Biology

Inductor: L-Arabinose

Repressor: AraC acts like repressor to both promoters (PBAD e PC) in glucose presence or L-Arabinose absence.

The BBa_K2457000 includes approximately 1298 nucleotides and is used to regule transgene expression in Escherichia coli bacterias. This construction is composed by the araBAD (PBAD) promoter, which produces medium force, the L-Arabinose operon, in 5’ → 3’ direction with a upstream native RBS, two regulatory sites: I1 and I2, and two operators sites AraO, O1 and O2. It is composed also by the promoter PC that transcribes the regulatory protein AraC gene, followed to tryptophan transcription terminator, in 3’ → 5’ (reverse) (KUHLMAN & COX, 2010).

Design

Figure 1: BBa_K2457000 Circuit.

Characterization

Figure 2:Sequencing electropherogram from BBa_K2457000.

Figure 3:Alignment of the designed sequence and our final construction from BBa_K2457000.

Sequence and Features