The miniTn7BB-Gm minitransposon was synthesized commercially and pUC18SfiI is a commercial vector.
This plasmid can be used for visualization purposes or to brand a strain because of its insertion in the genome of the working organism and split the antibiotic resistance cassette with the temporary expression of Flp recombinase.
The BBa_I13521 BioBrick was inserted within the BCS of pUC18Sfi-miniTn7BB-Gm by EcoRI and PstI clonning. In order to construct the pUC18Sfi-miniTn7BB-Gm delivery plasmid, the miniTn7BB-Gm transposon was cleaved from the commercial plasmid pMA (Mr. Gene) with SfiI and ligated to SfiI-digested pUC18Sfi. This strategy removes all multi-cloning restriction sites from pUC18Sfi, except for the flanking SfiI, thus guaranteeing that the unique sites in the transposon are not duplicated. The remove of the multi-cloning restriction sites was verify by analytic digestions.
The pUC18-SfiI cloning vector was kindly provided by the Microbiology laboratory of Centro Andaluz de Biolog??a del Desarrollo (CABD) in Sevilla. The miniTn7BB-Gm synthetic transposon was designed by the iGEM 2011 team UPO-Sevilla based on the set of miniTn7 derivatives developed by Choi et al. (2005) and commercially synthesized by Mr. Gene (Regensburg, Germany). K.-H. Choi, J. B. Gaynor, K. G. White, C. Lopez, C. M. Bosio, R. R. Karkhoff-Schweizer & H. P. Schweizer (2005). A Tn7-based broad-range bacterial cloning and expression system. Nature Methods, vol.2 NO.6, June 2005, 443.
The miniTn7BB-Gm synthetic minitransposon was digested at the flanking SfiI sites and cloned into SfiI-digested pUC18-Sfi. This results in the elimination of the complete pUC18-SfiI multi-cloning site, except for the duplicated SfiI sites that remain on both sides of the transposon, thus facilitating its transfer to other vectors. This plasmid can be used to keep the mini-Tn7-Gm in E. coli and other enterics, and may be used for transposition into the genomes of non-enteric bacteria, in which it is non-replicative. The structure of the mini-Tn7BB-Gm transposon is shown in the figure below. Tn7R and Tn7L are the right and left ends of Tn7 transposon, respectively, required for recognition of the transposase machinery and transposition. FRT is the Flp recombinase target site for excision of the resistance once the transposon is inserted in the genome of a living organism. The gentamycin resistance cassette (Gm) is flanked by restriction sites in order to facilitate the generation of variants with different antibiotic resistance markers. The BioBrick cloning site (BCS) includes the prefix and suffix restrictions sites used in assembly standard 10, and it is the place where BioBricks are inserted for genome integration. The complete construction is flanked by SfiI restriction sites to facilitate cloning.
In order to make this vector compatible with assembly standard 10, several restriction sites were removed from the synthetic sequence.
RBS (Elowitz 1999) -- defines RBS efficiency
Varies from -6 to +1 region from original sequence to accomodate BioBricks suffix. No secondary structures are formed in the given RBS region. Users should check for secondary structures induced in the RBS by upstream and downstream elements in the +50 to -50 region, as such structures will greatly affect the strength of the RBS. Contact info for this part: Brian Chow
Vinay S Mahajan, Voichita D. Marinescu, Brian Chow, Alexander D Wissner-Gross and Peter Carr IAP, 2003.
Derived from the TE terminator of T7 bacteriophage between Genes 1.3 and 1.4 <genbank>V01146</genbank>.
Transcription terminator for the E.coli RNA polymerase.
Suggested by Sri Kosuri and Drew Endy as a high efficiency terminator. The 5' end cutoff was placed immediately after the TAA stop codon and the 3' end cutoff was placed just prior to the RBS of Gene 1.4 (before AAGGAG). Use anywhere transcription should be stopped when the gene of interest is upstream of this terminator.
Transcriptional terminator consisting of a 64 bp stem-loop.
**highly** engineered mutant of red fluorescent protein from Discosoma striata (coral)
Campbell et al., PNAS v99 p7877 URL
monomeric RFP: Red Fluorescent Protein. Excitation peak: 584 nm Emission peak: 607 nm
TAATAA double stop codon added (DE). Four silent mutations made to remove three EcoRI sites and one PstI site: A28G, A76G, A349G, G337A.
Lutz, R., Bujard, H., Nucleic Acids Research (1997) 25, 1203-1210.
Sequence for pTet inverting regulator driven by the TetR protein.
BBa_R0040 TetR-Regulated Promoter is based on a cI promoter. It has been modified to include two TetR binding sites and the BioBrick standard assembly head and tail restriction sites.
June Rhee, Connie Tao, Ty Thomson, Louis Waldman
Conversion of the iGEM parts registry to SBOL2.1