plsrA/cI is a hybrid promoter built up with plsrA (from E. coli MG1655) and lambda cI OR2.
Double terminator consisting of BBa_B0010 and BBa_B0012
The Missouri Western/Davidson team designed primers for LsrA and extracted the DNA from E. coli MG1655. The CI portion was pulled from the registry as part number R0051.
This hybrid promoter uses the LsrA promoter that is capable of being repressed by LsrR - induction can occur with phospho-AI-2. Binding sites for cI repressor also occur. As a result the promoter is off in the absence of AI-2 and on in the presence of AI-2, but always off in the presence of cI.
The promoter region for LsrA should remain unaltered while cI binding sites (OR1 and OR2) are introduced downstream. The OR2 sites with cI bound should not allow transcription. The cI binding sites have a natural 6 bp spacer between them. It would be desirable to position the cI binding sites immediately downstream of the -10 region of the LsrA promoter. However, experimental evidence for the transciption start (+1) appears to be lacking.
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.
V. fischeri <genbank>AF170104</genbank>
Synthesizes 3OC6HSL, which binds to LuxR. The lux cassette of V. fischeri contains a left and a right promoter. The right promoter gives weak constitutive expression of downstream genes.This expression is up-regulated by the action of the Lux repressor, LuxR. Two molecules of LuxR protein form a complex with two molecules the signalling compound HSL. This complex binds to a palindromic site on the promoter, increasing the rate of transcription.
An LVA tail (sequence: AANDENYALVA) was added to increase protein degradation. .
Vinay S Mahajan, Voichita D. Marinescu, Brian Chow, Alexander D Wissner-Gross and Peter Carr
Transcriptional terminator consisting of a 64 bp stem-loop.
mnt repressor (strong) from Salmonella phage P22 (+LVA)
wild type dimeric repressor from enterobacteriophage p22 with dissociation constant of 2.5*10^-12. sequence was translated with the E.Coli K12 codon usage table, and nucleotides 95-97 was changed from AAT to AAC to avoid the cut site GAATTC (94-99). Identification of Functionally Important Residues in the DNA Binding Region of the MNT Repressor Kendall, KL; Sauer, RT The Journal of Biological Chemistry, 264(23):13706-13710, 1989
Conversion of the iGEM parts registry to SBOL2.1