BBa_K2008006
1
BBa_K2008006
Xylose->comK with removal of internal restriction sites
2016-10-08T11:00:00Z
2016-10-18T02:34:13Z
This part was amplified from the pAX01-comK plasmid constructed by Zhang and Zhang, 2010, and was previously characterized by the UofC_Calgary 2014 iGEM team.
This part is an improvement on the comK gene with the intent to make it more accessible to future iGEM teams. Internal restriction enzyme sites (one SpeI site located at base pairs 170-175 and two EcoRI sites located at base pairs 557-562 & 572-577 in the comK part submitted by UofC_Calgary 2014) have been removed. In our version of comK, the SpeI site (ACTAGT) was deleted entirely, as the site was contained within a spacer region between the xylose-inducible promoter and RBS. To remove EcoRI sites, the DNA bases of the new comK construct were changed, and codons were optimized for B. subtilis:
553 A>G
556 C>T
568 A>G
571 C>T
As the UofC_Calgary 2014 iGEM team discusses in their comK part (BBa_K1444018), comK is the master transcription factor involved in the competency of B. subtilis. ComK further affects the other competence factors (comC, comE, comF, comG and comK) to increase B. subtilis??? ability to be transformed (van Sinderen et al., 1995). As such, when additional comK is transcribed, it increases B. subtilis transformation efficiency.
Also like the UofC_Calgary 2014 iGEM team, we included a xylose-inducible promoter upstream of the comK coding sequence. This allows for induction of competency upon the addition of xylose, which is beneficial as the usual starvation method for transformation of B. subtilis is typically time-consuming and costly.
Note: This part is a composite part, not a basic part, but it could not be added as composite at the time of entry.
false
false
_2475_
30207
30207
9
false
Two internal EcoRI restriction sites and one internal SpeI restriction site to allow for this part to be BioBrick compatible. Codons were optimized for B. subtilis.
false
Rachelle Varga
annotation2489299
1
BBa_B0010
range2489299
1
797
876
annotation2489294
1
PxylA
range2489294
1
1
155
annotation2489295
1
RBS
range2489295
1
203
214
annotation2489300
1
BBa_B0012
range2489300
1
885
925
annotation2489297
1
comK
range2489297
1
221
793
annotation2489298
1
Stop codon
range2489298
1
794
796
annotation2489296
1
Start codon
range2489296
1
218
220
BBa_K2008006_sequence
1
catatctaatattataactaaattttctaaaaaaaacattgaaataaacatttattttgtatatgatgagataaagttagtttattggataaacaaactaactcaattaagatagttgatggataaacttgttcacttaaatcaaagggggaaatgacaaatggtccaagatatctaaaaatcaaagggggaaatgggatccaaaggaggccataatatgagtcagaaaacagacgcacctttagaatcgtatgaagtgaacggcgcaacaattgccgtgctgccagaagaaatagacggcaaaatctgttccaaaattattgaaaaagattgcgtgttttatgtaaacatgaagccgctgcaaattgtcgacagaagctgccgattttttggatcaagctatgcgggaagaaaagcaggaacttatgaagtgacaaaaatttcacacaagccgccgatcatggtggacccttcgaaccaaatctttttattccctacactttcttcgacaagaccccaatgcggctggatttcccatgtgcatgtaaaagagtttaaagcgactgagtttgacgatacggaagtgacgttttccaatgggaaaacgatggagctgccgatctcttataattcgttcgagaaccaggtataccgaacagcgtggctcagaaccaaattccaagacagaatcgaccaccgcgtgccgaaaagacaggaatttatgctgtacccgaaagaagagcggacgaagatgatttatgattttattttgcgtgagctcggggaacggtattagccaggcatcaaataaaacgaaaggctcagtcgaaagactgggcctttcgttttatctgttgtttgtcggtgaacgctctctactagagtcacactggctcaccttcgggtgggcctttctgcgtttata
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