BBa_K2008007
1
BBa_K2008007
Xylose->comK with AmyE homology
2016-10-08T11:00:00Z
2016-10-18T02:33:48Z
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. Flanking AmyE regions of homology were derived from the B. subtilis 168 genome.
This part is an improvement on the comK gene with the intent to allow the the part to be chromosomally integrated in the B. subtilis genome for increased long-term stability.
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
true
Two internal EcoRI restriction sites and one internal SpeI restriction site to allow for this part to be BioBrick compatible. Flanking AmyE regions of homology were added to allow for chromosomal integration and increased long-term stability of the comK construct.
false
Rachelle Varga
annotation2489348
1
Stop codon
range2489348
1
919
921
annotation2489303
1
5' amyE
range2489303
1
1
125
annotation2489346
1
Start codon
range2489346
1
343
345
annotation2489349
1
BBa_B0010
range2489349
1
922
1001
annotation2489344
1
PxylA
range2489344
1
126
280
annotation2489347
1
comK
range2489347
1
346
918
annotation2489345
1
RBS
range2489345
1
328
339
annotation2489350
1
BBa_B0012
range2489350
1
1010
1036
annotation2489351
1
3' amyE
range2489351
1
1037
1161
BBa_K2008007_sequence
1
tttcatttggttctggcaggaccggcggctgcgagtgctgaaacggcgaacaaatcgaatgagcttacagcaccgtcgatcaaaagcggaaccattcttcatgcatggaattggtcgttcaataccatatctaatattataactaaattttctaaaaaaaacattgaaataaacatttattttgtatatgatgagataaagttagtttattggataaacaaactaactcaattaagatagttgatggataaacttgttcacttaaatcaaagggggaaatgacaaatggtccaagatatctaaaaatcaaagggggaaatgggatccaaaggaggccataatatgagtcagaaaacagacgcacctttagaatcgtatgaagtgaacggcgcaacaattgccgtgctgccagaagaaatagacggcaaaatctgttccaaaattattgaaaaagattgcgtgttttatgtaaacatgaagccgctgcaaattgtcgacagaagctgccgattttttggatcaagctatgcgggaagaaaagcaggaacttatgaagtgacaaaaatttcacacaagccgccgatcatggtggacccttcgaaccaaatctttttattccctacactttcttcgacaagaccccaatgcggctggatttcccatgtgcatgtaaaagagtttaaagcgactgagtttgacgatacggaagtgacgttttccaatgggaaaacgatggagctgccgatctcttataattcgttcgagaaccaggtataccgaacagcgtggctcagaaccaaattccaagacagaatcgaccaccgcgtgccgaaaagacaggaatttatgctgtacccgaaagaagagcggacgaagatgatttatgattttattttgcgtgagctcggggaacggtattagccaggcatcaaataaaacgaaaggctcagtcgaaagactgggcctttcgttttatctgttgtttgtcggtgaacgctctctactagagtcacactggctcaccttcgggtgggcccaggcagtacgcctcttttcttttccagacctgagggaggcggaaatggtgtgaggttcccggggaaaagccaaataggcgatcgcgggagtgctttatttgaagatcaggctatcactgcggtc
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