BBa_C0012
1
lacI
lacI repressor from E. coli (+LVA)
2003-01-31T12:00:00Z
2015-08-31T04:07:23Z
represillator of Elowitz and Leibler (2000)
Released HQ 2013
Coding region for the LacI protein with an LVA degradation tail and without an RBS. LacI binds to the pLac regulator <bb_part>BBa_R0010</bb_part> and PLlac01 hybrid regulator <bb_part>BBa_R0011</bb_part> and inhibits transcription. IPTG (Isopropylthiogalactoside) binds to LacI and inhibits its operation, therefore promoting transcription.</P> <P>A rapid degredation tail (LVA) has been added to improve the High to Low performance of this part.</P>
false
false
_1_
0
24
7
In stock
false
References (unparsed) here: <p>Elowitz, M.B., Leibler, S. A synthetic oscillatory network of transcriptional regulators. <em>Nature</em> 403, 335-338 (2000). <a href="http://biobricks.ai.mit.edu/BB_References.htm#ELOW00">[ELOW00]</a><br> <br> </P> <P> References (unparsed) here: <p>Elowitz, M.B., Leibler, S. A synthetic oscillatory network of transcriptional regulators. <em>Nature</em> 403, 335-338 (2000). <a href="http://biobricks.ai.mit.edu/BB_References.htm#ELOW00">[ELOW00]</a><br> <br> </P> <P>Sequence taken from the repressilator of Elowitz and Leibler (2000). The obtained sequence was compared to the wild-type sequence for LacI obtained through a database search. The sequence had been modified from the wild-type in that wild-type GTG start was changed to an ATG start (note, actual ORF in E.coli has several GTG starts it would seem). The LVA tag has been added for quicker degradation.<P> Incompatible with systems containing LacI, lactose, or IPTG.
true
Grace Kenney, Daniel Shen, Neelaksh Varshney, Samantha Sutton
annotation7031
1
BBa_C0012
range7031
1
1
1128
annotation1723
1
lacI-LVA
range1723
1
1
1128
annotation1722
1
LVA
range1722
1
1090
1128
annotation2213988
1
Help:Barcodes
range2213988
1
1129
1153
BBa_R0051
1
cI lam
promoter (lambda cI regulated)
2003-01-31T12:00:00Z
2015-05-08T01:14:14Z
<a href="http://www.nature.com/cgi-taf/DynaPage.taf?file=/nature/journal/v403/n6767/abs/403335a0_fs.html&dynoptions=doi1043774228">A synthetic oscillatory network of transcriptional regulators</a> , Elowitz M.B. , Leibler S., Nature(403),335-38: 2000
Released HQ 2013
The cI regulated promoter is based on the pR promtoer from bacteriohage lambda. The promoter has two two DNA binding sites for lambda cI repressor <bb_part>BBa_C0051</bb_part>. cI binding results in repression of transcription. The specific sequence used here is based on the cI repressible promoter used in the Elowitz repressilator (and references therein).</P>
false
true
_1_
0
24
7
In stock
false
<P> <P>In order to address concerns about the promoter transcribing in the reverse direction, we have removed the -35 and -10 signals responsible for the promoter activity in the reverse direction. (<b><font color="red">More details needed here! DE, 2/24/03</font></b>)<P> Incompatible with host expressing cI repressor.
true
Vinay S Mahajan, Brian Chow, Peter Carr, Voichita Marinescu and Alexander D. Wissner-Gross
annotation2023
1
-35
range2023
1
15
20
annotation2022
1
-10
range2022
1
38
43
annotation2024
1
OR1
range2024
1
25
41
annotation7067
1
BBa_R0051
range7067
1
1
49
annotation2025
1
OR2
range2025
1
1
17
BBa_K1911000
1
BBa_K1911000
pLamdaR-LacI
2016-10-05T11:00:00Z
2016-10-14T06:11:56Z
The part was created by combining multiple parts found on the iGEM parts registry.
This part is a part of a larger construct which allows the system to change from one state to another. So when the E. coli cells containing the larger construct is induced with IPTG, the IPTG binds with the LacI repressor, allowing the other pathway to be expressed and it expresses a CI repressor which shuts down the 1st pathway. This part was created in order for teams to be able to easily place their genes of interest in this "switch" system. They would combine their gene of interest with the pLamdaR-LacI part and then proceed to combine it to the rest of the system.
false
false
_2378_
28764
28764
9
false
We had to make sure there were no illegal restriction enzyme sites (EcoRI, PstI, SpeI, and XbaI) which cut the part in places where we did not want them to.
false
Jack Kwon
component2486685
1
BBa_R0051
component2486693
1
BBa_C0012
component2486690
1
BBa_B0033
annotation2486690
1
BBa_B0033
range2486690
1
58
68
annotation2486693
1
BBa_C0012
range2486693
1
75
1202
annotation2486685
1
BBa_R0051
range2486685
1
1
49
BBa_B0033
1
BBa_B0033
RBS.4 (weaker) -- derivative of BBa_0030
2003-01-31T12:00:00Z
2015-08-31T04:07:20Z
Released HQ 2013
Weaker RBS based on Ron Weiss thesis. Strengths relative to <bb_part>BBa_B0030</bb_part>, <bb_part>BBa_B0031</bb_part>, <bb_part>BBa_B0032</bb_part>.
false
true
_41_44_48_46_1_
0
24
7
In stock
false
Varies from -6 to +1 region from original sequence to accomodate BioBricks suffix ("RBS-3" in figure 4-14 of thesis). <p>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: <a href="mailto:(bchow@media.mit.edu)">Brian Chow</a>
true
Vinay S Mahajan, Voichita D. Marinescu, Brian Chow, Alexander D Wissner-Gross and Peter Carr IAP, 2003.
annotation1713
1
RBS-4\Weaker
range1713
1
1
11
annotation7028
1
BBa_B0033
range7028
1
1
11
annotation1714
1
RBS
range1714
1
7
10
BBa_K1911000_sequence
1
taacaccgtgcgtgttgactattttacctctggcggtgataatggttgctactagagtcacacaggactactagatggtgaatgtgaaaccagtaacgttatacgatgtcgcagagtatgccggtgtctcttatcagaccgtttcccgcgtggtgaaccaggccagccacgtttctgcgaaaacgcgggaaaaagtggaagcggcgatggcggagctgaattacattcccaaccgcgtggcacaacaactggcgggcaaacagtcgttgctgattggcgttgccacctccagtctggccctgcacgcgccgtcgcaaattgtcgcggcgattaaatctcgcgccgatcaactgggtgccagcgtggtggtgtcgatggtagaacgaagcggcgtcgaagcctgtaaagcggcggtgcacaatcttctcgcgcaacgcgtcagtgggctgatcattaactatccgctggatgaccaggatgccattgctgtggaagctgcctgcactaatgttccggcgttatttcttgatgtctctgaccagacacccatcaacagtattattttctcccatgaagacggtacgcgactgggcgtggagcatctggtcgcattgggtcaccagcaaatcgcgctgttagcgggcccattaagttctgtctcggcgcgtctgcgtctggctggctggcataaatatctcactcgcaatcaaattcagccgatagcggaacgggaaggcgactggagtgccatgtccggttttcaacaaaccatgcaaatgctgaatgagggcatcgttcccactgcgatgctggttgccaacgatcagatggcgctgggcgcaatgcgcgccattaccgagtccgggctgcgcgttggtgcggatatctcggtagtgggatacgacgataccgaagacagctcatgttatatcccgccgttaaccaccatcaaacaggattttcgcctgctggggcaaaccagcgtggaccgcttgctgcaactctctcagggccaggcggtgaagggcaatcagctgttgcccgtctcactggtgaaaagaaaaaccaccctggcgcccaatacgcaaaccgcctctccccgcgcgttggccgattcattaatgcagctggcacgacaggtttcccgactggaaagcgggcaggctgcaaacgacgaaaactacgctttagtagcttaataactctgatagtgctagtgtagatctc
BBa_B0033_sequence
1
tcacacaggac
BBa_R0051_sequence
1
taacaccgtgcgtgttgactattttacctctggcggtgataatggttgc
BBa_C0012_sequence
1
atggtgaatgtgaaaccagtaacgttatacgatgtcgcagagtatgccggtgtctcttatcagaccgtttcccgcgtggtgaaccaggccagccacgtttctgcgaaaacgcgggaaaaagtggaagcggcgatggcggagctgaattacattcccaaccgcgtggcacaacaactggcgggcaaacagtcgttgctgattggcgttgccacctccagtctggccctgcacgcgccgtcgcaaattgtcgcggcgattaaatctcgcgccgatcaactgggtgccagcgtggtggtgtcgatggtagaacgaagcggcgtcgaagcctgtaaagcggcggtgcacaatcttctcgcgcaacgcgtcagtgggctgatcattaactatccgctggatgaccaggatgccattgctgtggaagctgcctgcactaatgttccggcgttatttcttgatgtctctgaccagacacccatcaacagtattattttctcccatgaagacggtacgcgactgggcgtggagcatctggtcgcattgggtcaccagcaaatcgcgctgttagcgggcccattaagttctgtctcggcgcgtctgcgtctggctggctggcataaatatctcactcgcaatcaaattcagccgatagcggaacgggaaggcgactggagtgccatgtccggttttcaacaaaccatgcaaatgctgaatgagggcatcgttcccactgcgatgctggttgccaacgatcagatggcgctgggcgcaatgcgcgccattaccgagtccgggctgcgcgttggtgcggatatctcggtagtgggatacgacgataccgaagacagctcatgttatatcccgccgttaaccaccatcaaacaggattttcgcctgctggggcaaaccagcgtggaccgcttgctgcaactctctcagggccaggcggtgaagggcaatcagctgttgcccgtctcactggtgaaaagaaaaaccaccctggcgcccaatacgcaaaccgcctctccccgcgcgttggccgattcattaatgcagctggcacgacaggtttcccgactggaaagcgggcaggctgcaaacgacgaaaactacgctttagtagcttaataactctgatagtgctagtgtagatctc
igem2sbol
1
iGEM to SBOL conversion
Conversion of the iGEM parts registry to SBOL2.1
Chris J. Myers
James Alastair McLaughlin
2017-03-06T15:00:00.000Z