This part was derived mostly from iGEM registry parts. It is a combination of K2066022 and K2066023. It uses UNS sequences from Torella et. al 2013 ("Rapid construction of insulated genetic circuits via synthetic sequence-guided isothermal assembly")
This part is allow pTET GFP on UNS (K2066023) and TetR on UNS (K2066022) to be on the same plasmid. By allowing these two parts on the same plasmid, it will reduce stress on a cell when doing multiple plasmid transformations. In this case of our project, we needed to put the repressor (TetR), promoter it binds to (pTET) and a TetO binding array in the same cell. Because we combined the repressor and promoter onto one plasmid, we only transformed with two plasmids.
Made this part to make multiple plasmid transformations more effective.
Kalen Clifton, Christine Gao, Andrew Halleran, Ethan Jones, Likhitha Kolla, Joseph Maniaci, John Marken, John Mitchell, Callan Monette, Adam Reiss
UNS 2 Sequence, from Torella et al., 2013
Torella, J. P., Boehm, C. R., Lienert, F., Chen, J. H., Way, J. C., & Silver, P. A. (2013). Rapid construction of insulated genetic circuits via synthetic sequence-guided isothermal assembly. Nucleic acids research, gkt860.
This is Unique Nucleotide Sequence 2, (UNS 2), from Torella et al., 2013. The William and Mary iGEM team has adopted this as our standard prefix; as such, all of our parts will have this sequence immediately following the BioBrick prefix. We took this measure in order to allow easier Gibson Assembly cloning of our parts. Primer sequences which can be used to clone with the UNS 2/3 standard can be found on our wiki.
UNS 2 was chosen because it works well with UNS 3 and it is in accordance with the BioBrick standard.
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
UNS 3 Sequence, from Torella et al., 2013
This is Unique Nucleotide Sequence 3, (UNS 3), from Torella et al., 2013. The William and Mary iGEM team has adopted this as our standard prefix; as such, all of our parts will have this sequence immediately following the BioBrick prefix. We took this measure in order to allow easier Gibson Assembly cloning of our parts. Primer sequences which can be used to clone with the UNS 2/3 standard can be found on our wiki. The sequence for this part came from the following paper: Torella, J. P., Boehm, C. R., Lienert, F., Chen, J. H., Way, J. C., & Silver, P. A. (2013). Rapid construction of insulated genetic circuits via synthetic sequence-guided isothermal assembly. Nucleic acids research, gkt860. A huge thanks to all the researchers involved in its original creation!
This UNS sequence was chosen to serve as the 3' primer in our standard because it works well with UNS 2 and it adheres to the BioBrick standards.
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.
green fluorescent protein derived from jellyfish Aequeora victoria wild-type GFP (SwissProt: P42212
GFP (mut3b) [note that this part does not have a barcode]
Double terminator consisting of BBa_B0010 and BBa_B0012
tetracycline repressor from transposon Tn10 (+LVA)
Elowitz, M. B. Transport, Assembly, and Dynamics in Systems of Interacting Proteins. Thesis, Princeton Univ., Princeton (1999)
Coding region for the TetR protein without the Ribosome Binding Site. Modified with an LVA tail for rapid degradation of the protein and faster fall time for the emission. TetR binds to the pTet regulator (BBa_R0040). aTc (anhydrotetracycline) binds to TetR and inhibits its operation.
References (unparsed) here: Elowitz, M. B. Transport, Assembly, and Dynamics in Systems of Interacting Proteins. Thesis, Princeton Univ., Princeton (1999). Lutz R, Bujard H., Independent and tight regulation of transcriptional units in Escherichia coli via the LacR/O, the TetR/O and AraC/I1-I2 regulatory elements. Nucleic Acids Res. 1997 Mar 15;25(6):1203-10. PMID: 9092630 References (unparsed) here: Elowitz, M. B. Transport, Assembly, and Dynamics in Systems of Interacting Proteins. Thesis, Princeton Univ., Princeton (1999). Lutz R, Bujard H., Independent and tight regulation of transcriptional units in Escherichia coli via the LacR/O, the TetR/O and AraC/I1-I2 regulatory elements. Nucleic Acids Res. 1997 Mar 15;25(6):1203-10. PMID: 9092630 BBa_C0040 TetR Protein is based on the TetR sequence from Elowitz's repressilator. It has been modified to include a rapid degradation LVA tail, and includes the BioBrick standard assembly head and tail restriction sites. The RBS has been removed. The stop codon has been changed from TAA to a double stop codon TAATAA.
June Rhee, Connie Tao, Ty Thomson, Louis Waldman.
TACTAGAG scar, only exists for bookkeeping because scars were being incorrectly added to our composite parts
UNS 6.1 sequence derived from (Torella et. al 2013) "Rapid construction of insulated genetic circuits via synthetic sequence-guided isothermal assembly".
This part is used as a spacer. WM iGEM 2016 used this part as a spacer to connect two separate composite parts onto the same plasmid. For example, UNS 6.1 was used as a spacer to connect K2066022(TetR on UNS) and K2066023(pTET GFP on UNS) to make K2066053.
TACTAG spacer, exists so that we can manually insert correct scar sequences
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.
Conversion of the iGEM parts registry to SBOL2.1