Composite
Part:BBa_K2336037:Design
Designed by: Ziyang Xiao Group: iGEM17_HUST-China (2017-10-24)
PmrA-PmrB(LBT5)-PmrC-GFP
Assembly Compatibility:
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21INCOMPATIBLE WITH RFC[21]Illegal BamHI site found at 2116
Illegal XhoI site found at 2155 - 23COMPATIBLE WITH RFC[23]
- 25INCOMPATIBLE WITH RFC[25]Illegal AgeI site found at 1704
Illegal AgeI site found at 2881 - 1000INCOMPATIBLE WITH RFC[1000]Illegal BsaI.rc site found at 2804
Illegal SapI.rc site found at 691
Design Note
We made full use of the two-component system found in Salmonella. We try to change the Iron binding motif to 12 lathanide binding tags in the membrane protein PmrB. Then PmrB can activate PmrA by phosphorylating it. Phosphorylated PmrA is going to activate promoter PmrC and GFP can be expressed. In the end, the sensing system can detect the concentration of lanthanide nearby.
Resources
Our LBT.PmrA-PmrB(Fe).PmrC-GFP were synthesized by IDT. Then we used SOE (splicing by over-lapping extension) to change the Iron binding motif to 12 lathanide binding tags in the membrane protein PmrB. Moreover, we use restriction enzyme and ligase to fuse the PmrA-PmrB(LBT) and PmrC-GFP.