Constitutive promoter+37℃ induced RBS+tetR+double terminator+Ptet+RBS+GFP+double terminator
We want to utilize a temperature-regulated mechanism to control the expression period of a crystal protein. Therefore, we took advantage of the interaction between 37?? C induced RBS, tetR gene and pTet promoter to create the temperature regulating circuit. The following is a description of our prescribed strategy. First, we use the constitutive promoter, 37?? C induced RBS (K115002), the tetR gene and terminators. We will call this part the ???Regulator???.
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.
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
green fluorescent protein derived from jellyfish Aequeora victoria wild-type GFP (SwissProt: P42212
GFP (mut3b) [note that this part does not have a barcode]
Constitutive promoter + 37℃ induced RBS + tetR + double terminator
we took advantage of the interaction between 37?? C induced RBS, tetR gene and pTet promoter to create the temperature regulating circuit. The following is a description of our prescribed strategy. First, we use the constitutive promoter, 37?? C induced RBS (K115002), the tetR gene and terminators. We will call this part the ???Regulator???. We speculate that when the ???Regulator??? and ???Production??? sections are combined, we can achieve a high bacteria growth rate and close to no target protein producing rate at T>37??C, and low bacteria growth rate and high target protein producing rate at T<37??C.
To regulate following gene by temperature
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.
Thermo sensitive small RNA (ROSE structure) which can be used as a RNA regulator.
Part of the sequence is altered because of the scar...
predicted stem-loop extending to one position before start codon
Conversion of the iGEM parts registry to SBOL2.1