IDT synthesis in 3 parts that were then assembled
The Pr promoter is a constitutive promoter driving the transcription of the XylR gene, coding for the XylR protein. The XylR protein, a transcriptional regulatory protein for the Pu promoter, is activated by aromatic hydrocarbons that carry a methyl group (like toluene and xylene). In our biosensor the Pu promoter allows the transcription of the bioluminescent reporter gene GLuc, coding for the Gaussia luciferase. When this enzyme reacts with its coelenterazine substrate it emits luminescence.
Site directed mutagenesis to overcome the mutation in the start codon of XylR
Celia Chenebault, Camille Soucies, Benjamin Piot
XylR coding device used to create our biosensor
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.
Double terminator consisting of BBa_B0012 and BBa_B0011
This is the naturally-occurring (possibly stationary-phase only) promoter for the XylR gene (which encodes the transcriptional regulator XylR).
This is the promoter activated by the transcriptional regulator XylR (BBa_I723136) in response to detection of environmental xylene.
Gaussia luciferase coding sequence optimized for use in E.coli DH5-Alpha
Gaussia luciferase coding sequence optimized for use in E.coli
XylR gene optimized for E.coli to synthesis our biosensor
Derived from luxICDABEG operon terminator of Vibrio fischeri <genbank>AF170104</genbank>.
Bidirectional transcriptional terminator consisting of a 22 bp stem-loop.
In the naturally-occuring sequence there is a mismatch in the stem of the stem loop. This can be corrected via an A->G mutation (at position 40 -- sequence coordinate/not MFOLD coordinate). The above sequence does not reflect this mutation (but the MFOLD image does). This terminator's location cannot be found using some inverted repeat detectors like PALINDROME because it is too short and contains a mismatch. This one was found with the help of Tom Knight. It lies between two coding regions that point towards eachother.
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.
Conversion of the iGEM parts registry to SBOL2.1