Difference between revisions of "Part:BBa K3505016"

Revision as of 18:41, 27 October 2020

araC-ParaBAD:RBS GB compatible with A1-B1

Usage and Biology

The PBAD promoter, derived from the arabinose operon andis an inducible promoter for arabinose. The use of an inducible promoter provides a most reversible and flexible gene circuit and at the same time exhibits a higher efficiency and lower side effects as cell death. The araC gene, is a regulatory gene and is located upstream of the L-arabinose operon, encodes a positive regulatory protein AraC, required for L-arabinose utilization in Escherichia coli. The araC gene has a constitutive promoter.

Design Notes

The coding sequence was domesticated . We removed BsmBI ,BsaI , BtgZI, BpiI sites in order to be compatible with GoldenBraid and MoClo. The sequence is presents in pUPD2 BBa_K3505007 and has overhangs compatible for Golden Braid cloning. The CDS has position A1-B2

Figure 1.The overhangs of this part in the Golden Braid Grammar.

Figure 2. The level 0 module : pupd2- araC:ParaBAD (illustration from SnapGene)

Verification of Cloning

Fig.1:(U=Uncut C=Cut) Restriction Digestion of araC:ParaBAD with EcoRI+ PstI ,Expected bands: 2029+1996, Positive result : YES

Sequence and Features