Used to characterize Paris Bettencourt 2012 delay system. When arabinose is no longer present LacI is able to leave by dilution eventually allowing GFP expression.
LVA tag was removed from LacI by PCR. The delay was not functional with fast-degrading LacI.
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.
RBS.3 (medium) -- derivative of BBa_0030
Weak1 RBS based on Ron Weiss thesis. Strength is considered relative to <bb_part>BBa_B0030</bb_part>, <bb_part>BBa_B0031</bb_part>, <bb_part>BBa_B0033</bb_part>.
Varies from -6 to +1 region from original sequence to accomodate BioBricks suffix ("RBS-2" in figure 4-14 of thesis). Contact info for this part: Brian Chow
Transcriptional terminator consisting of a 64 bp stem-loop.
green fluorescent protein derived from jellyfish Aequeora victoria wild-type GFP (SwissProt: P42212
GFP (mut3b) [note that this part does not have a barcode]
This promoter is a modified version of the LacI promoter
This is a modified version of the LacI promoter that should bind LacI tighter than the original.
LacI (Lva-, N-terminal deletion) regulatory protein
The LacI gene was cloned from''B. subtilis'' shuttle vector pDR111 using Pfu DNA polymerase PCR
LacI is a regulatory protein responsible for the repression of many catabolite genes. Transcription is regulated by proteins which bind operator sequences around the transcription start site. These proteins can positively affect transcription (activators) or negatively affect transcription (reppresors). Some repressor proteins can be inactivted however by addition of an inducer, such as IPTG or certain sugars. LacI if the regulator protein for the lactose operon in ''E.coli'' and the hyper-spank protein of ''B. subtilis''#1(<bbpart>BBaK143015</bbpart>) and is responsible for ensuring that in the absence of lactose (or IPTG) that there is no expression trough these promoter. LacI is not endogenous to ''B. subtilis'', so LacI will need to be expressed in the host in order for the hyper-spank promoter to be regulated. In the presence of IPTG or lactose, the LacI tetramer is unable to bind DNA and so transcription resumes. This version of LacI lacks a Lva degradation tag and has a small(3 amino acid) N-terminal deletion relative to the current registry LacI (<bbpart>BBa_C0012</bbpart)> and is derivatives. The N-terminal deletion appears to be common to most of the LacI genes used in conjunction with ''B. subtilis'' though both forms are found in ''E.coli'' (in differing strains). LacI was used in conjunction with the '''Hyper-spank promoter''' (<bbpart>BBa_K143015<bbpart>) and acted as an input adaptor for a '''Polymerases per second''' (POPS) output ====References==== <biblio> #1 pmid=16166525 </biblio>
LacI was located in the sequence of the ''B. subtilis'' shuttle vector pDR111. This version of LacI lacks a Ltva degradation sequence and has a small N-terminal deletion that is observed in many LacI used in studies on ''B.subtilis''. In particular, this LacI protein is used in pDR111 to regulate expression of the inducible Phyper-spank protein (<bbpart>BBa_K143015</bbpart>) (also used in the pDR111 vector). The BioBrick prefix and suffix were applied to the gene
PC and AraC from the AraBAD operator. PC and AraC are on the complementary strand, reading right to left.
Conversion of the iGEM parts registry to SBOL2.1