Difference between revisions of "Team:Valencia UPV/Part Collection"

In our collection, we have included different types of basic parts so that, combining them, we can create composite parts (transcriptional units) with different behaviours: constitutive, inducible, depending on another construction, to implement a more complex circuit, ...

Basic Parts

All our basic parts are in the plasmid BBa_P10500 and are compatible with BioBricks as they do not contain any illegal sites for RFC10. They have not sites for the type IIS restriction enzymes BsaI and BsmBI. For information on how these parts have been designed, see our design page (link).

Promoters

With respect to promoters, we include three constitutive promoters of different forces, a strong promoter for T7 phage DNA polymerase, and a promoter for the sigma 32 subunit of E. coli DNA polymerase. In addition, in our collection there are three promoters regulated by a transcription factor: the inducible pBad, positively regulated by AraC in the presence of L-arabinose, and the inducible and repressible lux promoters, positively and negatively regulated by LuxR in the presence of Acyl-homoserine-lactone, respectively.

RBS

Regarding the RBS, we have selected five from the Registry of Standard Biological Parts, with different strengths.

CDS

For CDS we have chosen different coding sequences of reporter proteins: fluoroproteins (sfGFP, mRFP1, YFP and GFPmut3b) and chromoproteins (amilCP). Another choice we have made is the addition of the LVA degradation tag to the mRFP1, YFP and GFPmut3b sequences. We have also selected the BSMT1 enzyme coding sequence that will allow our bacteria to smell of mint in the presence of salicylic acid. Additionally, we have added to the collection the CDS of the transcription factors AraC and LuxR that act on our regulable promoters, as well as the CDS of LuxI that acts producing the Acyl-Homoserine-Lactone to which LuxR responds. For this last CDS, we have codon optimized its sequence for E. Coli. Finally, we have picked a lysis gene from the enterobacteria phage phiX174 which allows us to create genetic circuits whose functionality implies the death of part of the population. All these coding sequences are codon optimized for E. coli.