BBa_K1105000
1
BBa_K1105000
lacIq-T7-ccdB
2013-09-22T11:00:00Z
2015-07-09T11:36:37Z
This part (BBa_K1105000) comes from p10-LacIq-T7ccdB, a plasmid constructed by the lab Inbio-UGent. Originally, it comes from strains which are mini F-plasmid positive, such as E. coli F+.
This part contains a ccdB gene under control of a T7-promotor. CcdB is a bacterial toxin that interferes with topoisomerase unit gyrA. The toxin CcdB can be neutralized by its antitoxin CcdA. The T7-promoter allows for the controlled expression of CcdB.
The goal of the UGent team 2013 is to improve the existing CIChE technique(Chemically inducible chromosomal evolution),developed by Tyo et al. in 2009. This was done by replacing the antibiotic resistance genes in the genome by CcdA antitoxin genes. This part was used to put pressure on the bacterial cells, in that way inducing chromosomal evolution.
true
false
_1416_
4206
16040
9
It's complicated
false
We had problems cloning our part in the pSB1C3 backbone due to the high copy number of pSB1C3. In every attempt mutations occurred. This is probably caused by the high pressure leaky expression of the T7 promoter may put on the cells. In the case of leaky expression, mutants (no ccdB expression)have a huge growth advantage over cells containing the correct. This lead us to submit our part in the pSB6A1 backbone (low copy number).
false
Eva D
annotation2367591
1
ccdB Start codon
range2367591
1
1613
1615
annotation2367575
1
pT7
range2367575
1
1526
1542
annotation2367577
1
RBS-1
range2367577
1
1600
1605
annotation2367574
1
LacIq
range2367574
1
231
1190
annotation2367576
1
LacO
range2367576
1
1547
1567
annotation2367578
1
ccdB
range2367578
1
1613
1921
annotation2367572
1
-10box
range2367572
1
67
72
annotation2367571
1
-35box
range2367571
1
44
49
annotation2367592
1
ccdB Stop codon
range2367592
1
1919
1921
annotation2367573
1
LacI
range2367573
1
108
230
BBa_K1105000_sequence
1
tgcgcctgatcatgttcgtcatttacgttgacaccatcgaatggtgcaaaacctttcgcggtatggcatgatagcgcccggaagagagtcaattcagggtggtgaatgtgaaaccagtaacgttatacgatgtcgcagagtatgccggtgtctcttatcagaccgtttcccgcgtggtgaaccaggccagccacgtttctgcgaaaacgcgggaaaaagtggaagcggcgatggcggagctgaattacattcccaaccgcgtggcacaacaactggcgggcaaacagtcgttgctgattggcgttgccacctccagtctggccctgcacgcgccgtcgcaaattgtcgcggcgattaaatctcgcgccgatcaactgggtgccagcgtggtggtgtcgatggtagaacgaagcggcgtcgaagcctgtaaagcggcggtgcacaatcttctcgcgcaacgcgtcagtgggctgatcattaactatccgctggatgaccaggatgccattgctgtggaagctgcctgcactaatgttccggcgttatttcttgatgtctctgaccagacacccatcaacagtattattttctcccatgaagacggtacgcgactgggcgtggagcatctggtcgcattgggtcaccagcaaatcgcgctgttagcgggcccattaagttctgtctcggcgcgtctgcgtctggctggctggcataaatatctcactcgcaatcaaattcagccgatagcggaacgggaaggcgactggagtgccatgtccggttttcaacaaaccatgcaaatgctgaatgagggcatcgttcccactgcgatgctggttgccaacgatcagatggcgctgggcgcaatgcgcgccattaccgagtccgggctgcgcgttggtgcggatatctcggtagtgggatacgacgataccgaagacagctcatgttatatcccgccgtcaaccaccatcaaacaggattttcgcctgctggggcaaaccagcgtggaccgcttgctgcaactctctcagggccaggcggtgaagggcaatcagctgttgcccgtctcactggtgaaaagaaaaaccaccctggcgcccaatacgcaaaccgcctctccccgcgcgttggccgattcattaatgcagctggcacgacaggtttcccgactggaaagcgggcagtgagcgtgatcatcaacgcaattaatgtgagttagcgcgaattgatctggtttgacagcttatcatcgactgcacggtgcaccaatgcttctggcgtcaggcagccatcggaagctgtggtatggctgtgcaggtcgtaaatcactgcataattcgtgtcgctcaaggcgcactcccgttctggataatgttttttgcgccgacatcataacggttctgggtctaggagctcgactctcttccgggcgctatcatgccataccgcgaaaggttttgcgccattcgatggtgtccgggatctcgacgctctcccttatgcgactcctgcattaggaaattaatacgactcactataggggaattgtgagcggataacaattcccctgtagaaataattttgtttaactttaataaggagatataccatggcacagtttaaggtttacacctataaaagagagagccgttatcgtctgtttgtggatgtacagagtgatattattgacacgcccgggcgacggatggtgatccccctggccagtgcacgtctgctgtcagataaagtctcccgtgaactttacccggtggtgcatatcggggatgaaagctggcgcatgatgaccaccgatatggccagtgtgccggtctccgttatcggggaagaagtggctgatctcagccaccgcgaaaatgacatcaaaaacgccattaacctgatgttctggggaatataacctaggagaagtgaaacgccgtagcgccgatggtagtgtggggtctccccatgcgagagtagggaactgccaggcatcaaataaaacgaaaggctcagtcgaaagactgggcctttcgttttatctgttgtttgtcggtgaacgctctcctgagtaggacaaatccgccgggagcggatttgaacgttgcgaagcaacggcccggagggtggcgggcaggacgcccgccataaactgccaggcatcaaattaagcagaaggccatcctgacggatggcctttttc
igem2sbol
1
iGEM to SBOL conversion
Conversion of the iGEM parts registry to SBOL2.1
James Alastair McLaughlin
Chris J. Myers
2017-03-06T15:00:00.000Z