Tetracycline resistance controlled by araC
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.
Promoter (luxR & HSL regulated -- lux pL)
The lux cassette of V. fischeri contains a left and a right promoter. The left promoter gives weak constitutive expression of downstream genes.This expression is down-regulated by the action of the Lux repressor, LuxR. Two molecules of LuxR protein form a complex with two molecules the signalling compound homoserine lactone (HSL). This complex binds to a palindromic site on the promoter, increasing the rate of transcription from Pr, repressing transcription from Pl
This promoter is based on the Vibrio fischeri quorum sensing gene promoters. Two genes LuxI and LuxR and transcribed in opposite directions as shown below. The original sequence from which the parts <bb_part>BBa_R0062</bb_part> and <bb_part>BBa_R0063</bb_part> were derived is shown in the picture below.Includes most of Lux reulatory region, including the LuxR binding site which activates the right promoter. A putative LuxR autorepression binding site is also identified adjacent to the -10 site of the right promoter. This 2nd site has 55% identity with the first site. Putative inverted repeats (of size 18-27 bp) also exist between these two sites (not marked above), which may represent binding sites for other regulatory proteins. <img src="<bb_file>Image01.gif</bb_file>" width="614" height="362"> Unspecified.
Vinay S Mahajan, Voichita D. Marinescu, Brian Chow, Alexander D Wissner-Gross and Peter Carr
The p22 cII regulatory region sequence is a 97 base-pair sequence with the standard BioBrick prefix and suffix sections on its ends. p22 cII repressor protein, BBa_C0053, binds to it. This segment contains O-R1, O-R2, a fragment of O-R3, the -35 of P-RM, and P-R (-10 and -35 from Tom Knight)
modified E. coli thr terminator, replaced all A-T pairs in stem with C-G pairs
Artificial terminator, estimated %T~>90% *8bp stem, 6nt loop *Bidirectional, estimated reverse %T~>90%
Bidirectional, with the reverse estimated to be less effective than the forward. Has a polyA tail of 9 residues.
AraC operator, truncated to include araO1, araI1, araI2, c-amp1, and c-amp2 sites. This operator should *activate* transcription in the presence of AraC; b/c the operator lacks the araO2 site, there should not be araC-mediated repression.
tetracycline resistance protein TetA(C) (forward), [cf. BBa_J31006]
This part is the coding region of the TetR gene. It requires a promoter and RBS for the cell to be able to express tetracyline resistance.
araC arabinose operon regulatory protein (repressor/activator) from E. coli (+LVA)
GenBank: NC_002655 (www.ncbi.nlm.nih.gov)
coding region for the araC gene, used to make araC protein for use in positive or negative regulation of TIPs output (see also R0080, R0081)
Conversion of the iGEM parts registry to SBOL2.1