Composite
Part:BBa_K634007:Design
Designed by: Eric Walters Group: iGEM11_Wisconsin-Madison (2011-09-23)
Double selection cassette (tagRFP-sacB-kanR)
Assembly Compatibility:
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21COMPATIBLE WITH RFC[21]
- 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000INCOMPATIBLE WITH RFC[1000]Illegal BsaI.rc site found at 648
Illegal SapI.rc site found at 30
Design Notes
We are still in the process of optimizing this device, the following considerations are undergoing testing:
tagRFP was taken from an expression vector, did it lose 5' components essential for high expression?
Can we reduce the frequency of spontaneous loss of function mutations in sacB through protein fusion with kanR?
Is the kanR RBS too strong for the desired resolution of susceptibility? Can a weakened RBS increase the range of the selection?
Likewise, is the RFP of K322921 too weak? Are we not getting enough translation of sacB to kill the population?
Source
tagRFP came from Evrogen sacB and kanR came from the registry